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Патент USA US3082910

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March 26, 1963
3,082,896
J. R. MOSHER
SHIPPING PAD
Filed Aug. 1, 1960
w. mN
Flavag
JAMES
R.
Ross Mmu
uR
BY
FIG. 39
,
a
I‘
ATTORNEY
United States Patent 0 ” 1C6
3,082,896
Patented Mar. 26, 1963
2
1
contact pads, adaptable for the easy placement on the
3,082,896
SHIPPING PAD
James Ross Mosher, Saratoga, Calif, assignor t0 Bean
Rubber Manufacturing Co.,. San Jose, Calif., a corpo
ration of California
Filed Aug. 1, 1960, Ser. No. 46,703
4 Claims. (Cl. 217-53)
This invention relates to protective packaging pads
corners of large or small curvature on an article, said
band having a bottom surface ?ush with said pads and
providing a seat for a metal shipping strap or other types
of strapping material adapted to pass over said pads.
Other objects, features and advantages of the present
invention will be observed from the following description,
and from the drawings, in which:
FIG. 1 is a view in perspective showing an article being
which are attachable to generally bulky, movable articles
prepared for shipment, utilizing shipping pads embodying
during the shipping and storage thereof. More particu
larly, it relates to an improved protective pad for articles
the principles of the present invention;
having surfaces of relatively large radii or irregular ex
FIG. 2 is a fragmentary plan view showing two articles
with corners having large and small radii and equipped
terior contours.
with shipping pads of the present invention;
The problem of packaging articles in large numbers for 15
- "
>
FIG. 3 is a view in perspective showing the shipping
pad of the present invention with a connecting band
shipment or storage has long been a serious one, especial~
detached: FIG. 3a showing one end-block from the top
ly with regard to protecting such articles both from sur
side; ‘FIG. 3b showing a second end-block from the under
face damage and internal damage due to shock or vibra
side; and FIG. 3c showing the connecting band in the
tion. A highly effective solution to this problem was
'
described in my co-pending application, Serial No. 819, 20 bent position;
FIG. 4 is a fragmentary view in .cross section of a
585. This invention comprised a one-piece protective
rubber pad in combination with magnets embedded there
in, which was thus easily attachable to and removable
portion of a shipping pad embodying the principles of the
present invention, taken along line 4—4 of FIG. 1;
FIG. 5 is a view in cross section showing one end of'a
from an article being shipped, and provided protection
against surface contact, sudden shock, and vibration of 25 shipping pad of the present invention, taken along line
the article.
As my original aforementioned magnetic shipping pad
came into greater use, certain problems arose in connec
tion with the packaging and storage of articles having
5—5 of FIG. 1.
In broad terms, my improved shipping pad packaging
protective device 10 is comprised of two similarly shaped
end blocks 11, 12 made from solid but yieldable material
corners and sides of greater radii than those which nor 30 and connectable by a removable strap or band 13 which
may be made from the same yieldable material. The
mally occur in the vast majority of articles being shipped.
blocks 11, 12 are so shaped, and the band 13~is inter
The larger radii created a problem because during packag
locked therewith in such a manner that the pad 10 will
ing, it was often desirable to employ metal strapping,
provide effective protection for articles of widely vary
well known in the packing ?eld, in conjunction with the
shipping blocks and, in the case of articles having corners 35 ing sizes and shapes. In use, the blocks are placed on
any substantially ?at area, such as the adjacent sides of
with large radii the one-piece pads failed to conform to
an article 14, while the interconnecting band 13 is ex
the proper corner shape, the straps touched and damaged
tended around the obtuse or rounded corner of the article,
the unprotected surface of the article.
as shown in FIGS. 1 and 2. Embedded .within each
It is, therefore, one important object of this invention
to provide a new, improved shipping pad which will pro 40 yieldable block or pad 11, 12 are mamgnets 15, having
slightly recessed end-sections 16 along a plane side’ 17
vide protection for articles having sides and corners with
of each block, so that the pad 10 will attach itself to the
large radii.
Another problem which arose was to ?nd a means to
metal-sided article 14 with a force su?icient to maintain
its position to protect the article from sudden shocking
different articles which required the highly advantageous 45 impacts, vibrations, and surface contacts during the ship
ping operation.
protective features of my shipping pad. This require
accommodate the various sizes and shapes of the many
Referring now to the structural features of my improved
shipping pad 10, FIG. 3 shows a composite view thereof
shipping pads in various sizes and yet to utilize the surface
including details of both the end blocks 11, 12 and the
contacting pads of a single, standardized form.
Therefore, another important object of the invention is 50 band 13. Each end block 11, 12 is formed from a soft,
to provide an improved shipping pad which utilizes en— . fairly ?exible, shock-absorbent material such as rubber.
larged end pad members in combination with interchange
Among the usable natural and synthetic elastomers,
butyl-rubber has unique properties which provide both
able connectable means to vary the length between the
end contact members, so that the complete assembled
prerssure and contact protection of articles, as well as
protective device can be used to accommodate articles
vibration damping. Therefore, butyl-rubber is the pre
and surfaces of various sizes and shapes.
ferred elastomer used to form my novel shipping pad.
Another object is to provide a composite protective
, In addition, the relatively soft but solid. rubber material
shipping pad that is easily attachable to and removable
will ?ow readily during the forming process when sub
from the outer surface of the shipped article including
jected to moderate amounts of heat and pressure, to lock
corners thereof without requiring an attaching means on
in the magnet members 15 to provide, in the ?nished
the article.
form, an effective cushioning device. It is obvious, of
More speci?cally, it is an object of the invention to
ment presented a problem of devising a means to provide
provide an improved, lightweight protective shipping
device, with enlarged end-pads having embedded magnets
course, that other materials could be used where less
effective cushioning is satisfactory. For example, sponge
therein, in combination with a lockable, removable, inter 65 rubber or neoprene-rubber could be used, but they give
connecting band.
Another object is to provide a ?exible connecting band
which can be interlocked at each end to a shock absorb
ing pad and which can be deformed to be disconnected
less damping, less protective strength, and less ?exibility.
Any convenient plan, form, shape of the blocks 11, 12
could be made, although I prefer a generally rectangular
con?guration having two relatively thick parallel side
70 portions 18 joined by a thinner center section 19, a slot
20 being formed between said side portions 18. Through
the thin center section '19 on each block is an opening
?exible connecting band between two shock absorbing
from said pads.
‘Still another object of the invention is to provide a
3,082,896
-
4
3
21 which provides a means to removably connect each
block with one end of the band 13.
As shown in FIG. 3a, on the upper surface of each
center section 19 there is a rectangular cutout portion 22
‘which has a depth of approximately one half the thickness
;of the band‘ 13 and the center section 19 of the block. The
lower cutout portion 25 and the lower surface 33 of each
rectangular section 32 is in the same plane as the lower
surface 34 of the band 13. Each rectangular end member
32 extends beyond the end surface 31 of the lower half
of the band 13 to form a slot ‘35 between said rectangular
member 32 and said surface 31, and the member 32 also
cutout portion 22 on each block 11, 12 extends inwardly
extends beyond the end of the end portion 30 of the upper
from one end surface 23 and parallel to the side portions
half of the band 13 so that the upper surface of each
,‘18 to an inner edge surface ‘24, approximately at the mid
rectangular member 32 provides a bearing-surface 36 on
point of each. -The rectangular cutout portion 22 is ap 10 each end of‘the band 13 to engage the bearing-surface 27
proximately equal to or slightly larger in width than the
on an end block 11 or 12.
band 13. On the lower plane side -17, of each block 11,
With the above described structure, the band 13 can
12 is a rectangular cutout portion 25 (FIG. 3b) which
be readily attached to or disconnected from an end block
also extends to a depth equal to one half the thickness of
v.11 or 12 by simply deforming the rectangular member
the center section 19 of the band '13. The lower cutout por 15 32 so that it will pass through the opening 21. When the
“tion 25 has its longest dimension, which is longer than the
band 13 is locked in an end block 11, the rectangular
width of the upper cutout portion 22, oriented at 90° to
member 32 is seated in the lower cutout 25 of each. block
the longest dimension of the upper cutout portion 22.
with the lower surface 33 of the rectangular member 32
Thus, the lower cutout portion 25 overlaps the upper cut
flush with the plane side 17 of the end block ‘11 or 12
out portion 22 to form the rectangular opening‘21 com 20 ~ and the bearing surfaces 27 and 36 adjacent each other.
pletely through the center section 19. An abridging por
vThe pad 10 then acts as one continuous integral unit, the
tion 26 is formed between the opening 21 and the end
bottom surface 34 of the band 113 being ?ush with the
surface 23. The lower cutout portion 25 extends beyond
plane surfaces 17 of both blocks 11 and 12. The band 13
the end edge 24 of the lower cutout portion 22, to form
can be of any length required and provides a continuous
-a bearing surface 27 surrounding three sides of the open 25 protective surface to follow any external contour on the
ing 21, which serves to retain the end of the removable
article being shipped.
band 13 in its connected, locked position.
The magnets 15 provide an important feature of my
The flexible connectingiband 113 (FIG. 30) is an im
improved shipping pad 10 since, in some cases, they elim
portant feature of my improved shipping pad 110‘ and can
inate completely the need for any external attachment
.be removably ?xed ‘to-the blocks 11, -12 at each end 30 means on or around the article 14; and in other cases they
thereof, so that the'assembled pad 10 can .be placed in an
.simplify the packing procedures by eliminating the need
‘effective protective position on articles having either
to hold a pad 10 in position by some external means such
sharply obtuse or generously rounded corners as illus~
as a metal strap 29.
.
trated in ‘FIG. ‘2. One principal advantage of the ?exible
As shown in FIG. 3, the magnets *15 are embedded in
band 13 is that it can be removed readily when necessary, 35 the thick side portions 18 of each end block '11, 12 with
so that the blocks 11, 12 can be used separately or a band
their exposed end sections 16 not quite ?ush with the
,of different length can be replaced, to accommodate an
plane contact surfaces 17 of each block v11, 12. ‘I prefer
article having an unusually irregular surface or one with
to recess the magnet end sections 16 for not more than
a large curvature.
1,434 of an inch, to prevent any contact therewith on the
Each band '13 preferably is made from the same rcla~ 40 surface of the article. No contact between the magnets
tively soft, deformable, shock-absorbing rubber material
15 and the article is necessary or desirable. Only the soft
that is used to form the vblocks 111, '12. The thickness of
rubber surf-ace makes contact with the article, while mag
the band 13 preferably is equal to that of the center sec
netic force holds the pad 10 in place without the magnet
tion 19 of each block. -At or near the ‘mid-point on the
15 touching the surface of the article physically; which
upper side of the band v13, I prefer to cut a V-shaped 45 article may be porcelain or other easily scratched ma
groove 28. The groove 28 is cut inwardly at approxi
terial. I have found that horseshoe-shaped permanent
mately 45° from the top of the band 13, making a total
magnets, having the exposed tend sections ‘16, are well
, included-groove angle 90°. This permits the band 13 to
adapted for use with my shipping pad .10, 'since the de
bend sharply ‘for the obtuse corner section, and yet the
formable rubber material will ?ow around the magnets
band 13 is ?exible so that it will readily conform‘to cor
~15 and hold them ?rmly in place during the life of the
ners of large curvature, where necessary. FIG. 2 shows
shipping pad '10. The magnets 15 may be obtained com
the band 13 employed under both of the aforementioned
mercially, and I have found that the grain-oriented Al~
_ conditions on articles placed next to each other, ready
for shipment. The depth of shape of the groove 28 in'the
nico V-type performs satisfactorily, although any magnet
of suf?cient strength may be used. Magnets of-the nick
band 13 can be varied as desired, depending on the use 55 el-steel type having a breaking force of approximately
to which the band is to be put and, in some instances, a
8 lbs. will perform satisfactorily even when inset within
mere slit may su?‘ice. However, the groove 28 must leave
the plane contact surface 21 of the shipping pad. Other
a band thickness su?icient to support the tightening pres
shapes of magnet, such as the well known multiple-pull
sures of a metal strap 29 or other suitable tying material
magnet, also may be utilized within the scope of this in
which may be used in some instances in packaging articles 60 vention.
and it also must be suf?ciently thick to absorb the shock
The cross sectional view of FIG. 5 shows a slightly
of an impact on the corner of the article.
modi?ed form of the present invention, wherein the in
The band 13 may be formed most conveniently by
set magnets 15 are covered completely by a thin ?lm '37
joining together two strips of the aforementioned rubber
of rubber which is allowed to flow over the normally ex
material, of uniform and equal thickness, one on top of 65 posed end portions 16 of the magnet 15. Where extreme
thetother, the upper strip or half having end portions 3%
care must be exercised to insure freedom from surface
extending a predetermined distance beyond the end sur
scratches on the article being protected, this embodiment
face 31 of the lower _half of the band. The width of the
of my invention positively prevents any metal-to-metal
. ‘band 13 as'mentioned previously, is slightly less than the
contact between the magnet 15 and the article being pro
width of the upper cutout portion 22 in the end blocks 70 tected. Again, the thickness of the rubber ?lm 37 of up
11, 12. Across the underside of each end 30 of the upper
to 1,434 of an inch, will be sufficient to provide a protec
half of the band '13 is welded a rectangular member 32
tive layer without reducing appreciably the force of the
which has the same size and shape as the lower cutout
,portion ‘25 on the blocks 11, 12. The thickness of each
rectangular member "32 is equal to the depth of each
magnet 15 to hold the shipping pad 10 in position.
In operation, my improved shipping pad 10‘ can be
' used on a wide variety of articles having irregular shapes,
3,082,896
6
5
having a substantially uniform plane surface on its bot
tom side for engaging an article requiring protection; a
?exible band member of elastomeric material connecting
said block members; and means for removably attaching
each end of said ?exible band member to a said block
member, said means comprising an opening through each
said block member and a recessed portion around said
opening on the bottom side of said block member, and
a yieldable locking member on each end of said band
including obtuse corners and corners with large radii
(FIG. 2). The versatility and protective effectiveness
of the present invention removes the necessity for ex
pensive packing and crating of articles for shipment or
storage.
In a typical application of the invention, appliances
would roll off the assembly line mounted on a standard
base member '38 (FIG. 1) and the shipping pads 16 can
be placed quickly on the article 14 by a single operator
at the vital points requiring protection, such as the cor 10 member, larger than said openings and adapted to fit
within said recessed portion around said opening on each
ners, or around door handles and on ?at panel sections.
said block member; whereby said blocks may be retained
on merging surfaces forming a corner edge of said arti
cle while said band member provides a connecting pro
the metal strap member 29 is used, the operator merely
positions a shipping pad 10 on the corner of the article 15 tective link between said blocks adapted to ?t close
against the merging surfaces around the corner edge.
14 and the strap member 29 is applied around the arti
3. A shock absorbing device for protecting articles ar
cle within the slot 20 of the blocks 11, 12‘ and lying along
ranged in closely spaced relation for shipping and stor
the band 13. If the packing operation does not require
age, cornprising: a pair of block members formed from
the use of the metal band, the shipping pads are mere
ly attached to the metal appliance by engaging the pad 20 yieldable, elastomeric material, each said block member
having a substantially uniform plane surface on its bot
to the side or the corner thereof, the force of the mag
tom side for engaging an article requiring protection; an
nets holding the pad in position until it is forcibly re
elongated ?exible band member of elastomeric material
moved. The entire packaging process takes only a
connecting said block members; and means for removably
matter of minutes, when using the shipping pads in this
manner. This is in sharp contrast to the complicated 25 attaching each end of said flexible band member to a said
block member, said means comprising an opening through
time-consuming task of assembling and installing a typi
each said block member, and yielda le locking members
cal crate-type protective cover.
of substantially uniform thickness ?xed to each end of
During the moving and storing of the articles equipped
As shown in FIG. 1, my shipping pad 10 may be used
either with or without a metal strap member 29. When
said band member, said locking members being larger
with the shipping pads of the present invention, the arti
said openings but being adapted, when de
cles may be packed closely one to another, as shown in 30 in area
formed, to pass through said opening and thereafter to lie
FIG. 2. The shipping pads 10 placed on the outer sur
parallel to the said bottom side on each said block mem
faces of the appliances fully protect the vital points such
ber over said openings; whereby said blocks may be placed
as corners and edges and also provide effective protec
on merging surfaces forming a corner edge of said article
tion against shock or vibration, to protect any delicate
35 while said band member provides a connecting protective
internal parts of the article.
link between said blocks adapted to fit close against the
To those skilled in the art to which this invention re
merging surfaces around the corner edge.
lates, many changes in construction and widely differing
4. A shock absorbing device for protecting articles ar
embodiments and applications of the invention will sug—
ranged in closely spaced relation for shipping and stor
gest themselves without departing from the spirit and
scope of the invention. The disclosures and the descrip 40 age, comprising: a pair of block members formed from
yieldable, elastomeric material, each said block member
tion herein are purely illustrative and are not intended
having a substantially uniform plane surface on its bot
tom side for engaging an article requiring protection; an
elongated ?exible band member of elastomeric material
to be in any sense limiting.
I claim:
1. A shock absorbing device for protecting articles
arranged in closely spaced relation for shipping and stor 45 connecting said block members; and means for removably
attaching each end of said ?exible band member to a
said block member, said means comprising an opening
through each said block member and a recessed portion
around said opening on the bottom side of said block
member, and a yieldable locking member on each end of
age, comprising: a pair of block members formed from
yieldable, elastomeric material, each said block member
having a substmtially uniform plane surface on its bot
tom side for engaging an article requiring protection; a
magnet embedded in each said block member, said mag
nets having end sections located near the surface of said
bottom side and substantially ?ush therewith; a ?exible
band member of elastomeric material connecting said
block members; and means for removably attaching each
end of said ?exible band member to a said block mem
said band member, larger than said openings and adapted
to ?t within said recessed portion around said opening on
each said block member, said ?exible band having a
notched out portion between its ends; whereby said blocks
55 may be retained on merging surfaces forming a corner
ber, said means comprising an opening through each said
block member and a recessed portion around said open
ing on the bottom side of said block member, and a yield—
able locking member on each end of said band member,
larger than said openings and adapted to ?t within said 60
recessed portion around said opening on each said block
member; whereby said blocks may be retained on merg
ing surfaces forming a corner edge of said article while
said band member provides a connecting protective link
between said blocks adapted to ?t close against the merg 65
ing surfaces around the corner edge.
2. A shock absorbing device for protecting articles ar
ranged in closely spaced relation for shipping and stor
age, comprising: a pair of block members formed from
yieldable, elastomeric material, each said block member 70
edge of said article while said band member bends
sharply around the corner edge and provides a connect
ing protective link between said blocks that ?ts close
against the merging surfaces around the corner edge.
References (Iited in the tile of this patent
UNITED STATES PATENTS
1,515,356
2,471,635
2,474,036
Moon ______________ __ Nov. 11, 19.24
Mark et al ____________ __ May 31, 1949
Curley ______________ __ June 21, 1949
2,641,793
2,674,433
Wilm ______________ __ June 16, 1953
Mautner ______________ __ Apr. 6, 1954
332,101
Great Britain __________ __ Apr. 6, 1960
FOREIGN PATENTS
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