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Патент USA US3093181

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June ‘11, 1963
Filed Jan. 9, 1961
2 Sheets-Sheet 1
I8 20 22 24
I8 202224
per/402 M Beau
Mame/:6 F C5776
June 11, 1963
2 Sheets—Sheet 2
Filed Jan. 9, 1961
50 52 54
56 7/
' 58
Aer/402 M 55m!
MHUE/cé‘ F Germ
United States Patent 0 "ice
Patented June 11, 1963
Shown in FIGURE 2 is a top plan view of a discarded
Arthur M. Bean and Maurice F. Cetta, Walton, N.Y., as
signors to Bean Brothers Inc., Walton, N.Y., a corpo
ration of New York
Filed Jan. 9, 1961, Ser. No. 81,615
3 Claims. (Cl. 144-310)
bowling pin 10 from which portions are removed from
three sides as shown by 12, ‘14 and 26.
In FIGURE 3 there is shown one of the portions 12
after having been severed from the used pin v10. As
clearly shown the portion cut from the discarded pin
belly is generally prolate spheroidal segmental, being
somewhat less than a hemi-prolate spheroid or “half
football.” The severed pieces 12, 14 are applied to a
The present invention relates to a method of produc~ 10 laminated core 16 such as that shown in FIGURE 4.
As illustrated the core 16 is formed of a plurality of
ing bowling pins. More speci?cally, the invention re
laminations 18, 20, 22 and 24 having been adhesively
lates to a method for producing bowling pins using salva
secured together forming a rectangular block having a
ble portions cut from discarded bowling pins.
square cross-sectional dimension.
In prior art methods wherein salvable portions of dis
carded bowling pins have been used, such as those shown 15 The adhesive used to join the strips together forming a
laminated block is of a type in accordance with the stand
in Francar, No. 2,634,774, dated April 15, 1953; and
ards and speci?cations set forth by the American Bowl
Francar, No. 2,717,617, dated September 13, 1955; sub
ing Congress. The glue is cured during an application
stantially the whole used bowling pin forms a part of the
new construction.
Conversely, in the present invention, a completely new
core is ?rst constructed and then only relatively small
portions are cut from the used bowling pin and applied
to the core. The whole assembly is then turned to a de
of pressure to the block of from 2504800 pounds per
square inch at a temperature ranging from 75° to 85° F.,
and a relative humidity of approximately 40%. The
time required to cure the adhesive is approximately 20
45 minutes. The above procedural steps are shown mere
1y by way of example, in that other suitable arrangements
An object of the invention is a method of producing 25 of time, humidity, temperature and pressure could con
ceivably be used.
bowling pins incorporating salvable portions cut from
The portions 12 and 14 are adhesively secured to the
discarded bowling pins.
face portions of the exterior laminas 18 and 24 as shown
A further object of the invention is a simple and
in FIGURE 5. Two similar pieces 26 and 28 are secured
economical method of producing bowling pins.
sired dimension.
Other objects and advantages will become readily ap
parent when referring to the following description, when
taken with the accompanying drawings, wherein:
adhesively to the other two sides of the core. One of
these pieces 26 is cut from the same pin as pieces 12 and
14, the other piece 28 is cut from another discarded pin.
As shown in FIGURE 6, the end portions 30 and 32
ing pin showing in dotted lines the portions cut therefrom 35 may be removed from piece 28 and end portions 34 and
36 may be removed from the piece 26 in order that they
and used in the new construction;
FIGURE 1 is a side elevation illustrating a used bowl
FIGURE 2 is a top plan view of a discarded or used
may be placed in abutting relation to the laminated core
bowling pin showing in dotted lines the three portions to
16 and ?tted between the overhanding portions of pieces
12 and 14. An alternative method consists of trimming
be cut therefrom and used to construct a new bowling pin;
FIGURE 3 illustrates one of the pieces which has been 40 portions 38 and 40 from the piece 14 and end portions 42
and 44 of the piece 12 to allow the pieces 26 and 28 to
removed from a used bowling pin;
be glued to the laminated core 16.
FIGURE 4 is a side elevation illustrating the laminated
The assembled block is then placed in a lathe and
construction of the core;
turned to the desired contour and dimension, producing a
FIGURE 5 is a side elevation illustrating two por
tions such as that shown in FIGURE 2 applied to two 45 pin as shown in ‘FIGURE 7.
The hold nob of wood 46 on the head of the pin is
sides of the laminated core;
removed by sawing and the use of a contour cutting tool.
FIGURE 6 is a top view of the partially constructed
A slightly modi?ed form of construction for produc—
pin of FIGURE 5, showing pieces cut from a used bowl~
ing bowling pins using portions cut from discarded pins
ing pin adhesively secured to a laminated core. Also
shown in FIGURE 6‘ are additional portions removed 50 is shown in FIGURE 8. In this construction, the core
48 is formed from a plurality of strips 50, 52 and 54
from a used bowling pin which are applied to the re
adhesively secured together in the same manner as core
maining two sides of the laminated core;
16. However, when laminated, the core formed has a
FIGURE 7 is a side elevation showing the completed
substantially greater width than thickness whereby not
pin as constructed in accordance with the teachings of
55 only the general con?guration of the block is rec
the present invention;
tangular but also the block is rectangular in cross-section.
FIGURE 8 is a modi?ed form of construction wherein
In this construction only two pieces removed from a dis
the core is constructed somewhat differently and the por
carded pin are used. One piece 56 is adhesively secured
tions shown in FIGURE 2 are applied to only two sides
to the face of outer lamina 50 and the other piece 58 is
FIGURE 9 is a front elevation illustrating the posi 60 adhesively secured to the lamina 54. The relative posi
tion of one of the adhesively secured pieces 56 is shown
tion of the portion cut from a used bowling pin applied
of the core;
to the modi?ed core;
on the face of lamina 50 in FIGURE 9.
The block thus formed is turned to the desired dimen
FIGURE 10 illustrates the completed pin as formed in
sion in a lathe to the con?guration as shown in FIGURE
accordance with the modi?ed construction; and
FIGURE 11 illustrates a further modi?cation wherein 65 10. The holding nob 60 shown in dotted lines if re
moved in the same manner as the nob described in FIG
a laminated block as shown in FIGURE 4 is rough turned
URE 7.
to the general con?guration of a bowling pin, whereby
A further modi?cation is shown in FIGURE 10. A
four planar surfaces are left on the thick dimension.
laminated core 62 identical to the core 16 shown in FIG
In FIGURE 1 there is shown a used bowling pin 10 70
URE 4 is ?rst constructed by laminating strips 64, 66
and in dotted lines portions 12 and 14 which are cut
and 68 and 70 together to form the block. When the
therefrom and form part of the blank from which a new
block has been formed, it is rough turned to the general
pin is turned.
con?guration of a bowling pin leaving four planar sur—
tangular faces, and turning the joined block and portions
faces on the thick dimension, three of these are shown as
down to substantially the size and shape of a standard
72, 74 and 76. The fourth planar surface is identical
and on the opposite side of the pin from the planar sur
face 74. Four pieces which have been removed from
used bowling pins are then applied to the planar surfaces
and trimmed. Three of these pieces are shown 78, 80
bowling pin.
2. A method for producing a bowling pin as set forth
in claim 1 additionally comprising the step of rough turn—
ing said laminated block to the general con?guration of
a bowling pin but leaving a ?at portion at the belly area
of each rectangular face before adhesively joining the
discarded bowling pin portions thereto.
3. A method for producing a bowling pin as set forth
and 82 in dotted lines, the fourth is adhesively secured
to the opposite side of the pin from piece 80. The pin
is then ?nish turned to the desired dimension and the
hold nob portion 84 is removed in the same manner as
in claim 1 wherein the generally prolate spheroidal seg
that previously described in the constructions shown in
FIGURES 7 and 10.
mental portions are each of such width that substantially
the entire circumference of the belly of the discarded
While the invention has been described in the preferred
bowling pin is consumed by removing less than four of
embodiments, it will become apparent to those skilled in 15 said portions therefrom whereby at least one of the four
the art that many other modi?cations and variations are
portions must be removed from a second discarded bowl
possible. However, such variations and modi?cations are
considered to be within the scope of the appended claims.
What is claimed is:
ing pin.
References Cited in the ?le of this patent
1. A method for producing a bowling pin comprising
removing a plurality of generally prolate spheroidal seg
mental portions from the belly of at least one discarded
bowling pin by passing a plurality of circumferentially
spaced, substantially vertical cuts through said discarded
bowling pin at distances from the longitudinal axis there 25
of greater than the minor radius of the neck portion of
said discarded bowling pin; adhesively joining a plurality
of rectangular Wooden strips to one another as to form a
laminated ‘block having a square cross section and four
rectangular faces, adhesively joining one of said generally
prolate spheroidal segmental portions to each of said rec
Willson ______________ .._ Feb. 24,
Boldt ________________ __ Jan. 30,
Luedtke _____________ .... Feb. 24,
Francar _____________ ..._ Apr. 14,
Stearns et al. __________ __ Oct. 6,
Francar _____________ __ Sept. 13,
Giese ________________ __. Oct. 25,
Francar _____________ .. Feb. 18,
Gerlikovski ___________ __ May 9,
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