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Патент USA US3094858

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June 25, 1963
Filed June 25, 1960
£2 5/ 50
@904, H 141.619.56.47
nited States Patent
Patented June 25, 1963
At the lower end of each of the vertical legs is secured
a dome-shaped base plate 18 which, because of its con
vex shape, not only is particularly strong, but also creates
a suction effect between this plate and the lake bottom.
A ?rm footing is thereby provided for the vertical sec
tions. A set screw 19 holds the dome plate on: the lower
Paul H. Albrecht, Kewaskum, Wis.
Filed June 23, 1960, Ser. No‘. 38,328
5 Claims. (CI. 61-48)
This invention relates to pier construction. of the type
end of its leg.
which has supporting structure that rests on the ground
under the water and extends above the water to support
At the upper end of each of the legs is secured a riser
relate usually are started from the shore and. then are
cross brace 22. Suitable set screws 24 hold the legs and
cross brace in the member 20. The member 20 has a
plate member 20. These members slip over the top- of
10 the vertical legs and also have a horizontally extending
the pier deck.
portion 21 which receives the end of another tubular
Piers of the general type to which the present invention
built outwardly therefrom, and it is highly desirable to
be able to build such a pier without the necessity of
plate portion 23 formed integrally at its- uppermost side.
getting into the water. .These piers should also be. as 15 This plate portion. is horizontally disposed and has a pair
of spaced apart’ key-hole openings 25 extending there
light as possible to permit. ease of handling the various
parts, but at the same time they must be rigid, stable,
The opening 25 has its larger end 25a. positioned
and strong.
inwardly while the smaller end 25b of this key-hole
‘Accordingly, it is‘ a general object of the present inven
tion to provide a readily assembled and disassembled 20 opening is disposed on the outward side’ of. the pier.
The base plates 18, T-joints 15 and riser plate mem
pier having the above desirable characteristics.
bers 20 are preferably formed as castings of aluminum
More speci?cally, the present invention provides a pier
which is comprised of sections that can be quickly and
The vertical support sections above described act to
easily installed or taken up without the use of special
tools, bolts or other fastening means which may become 25 support pairs of horizontally disposed stringers 30, 31
and 32, 33. Thesestringers are of L-shaped cross section
lost. This is accomplished by the use of horizontal
and may be formed as an aluminum alloy extrusion.
stringers arranged in parallelism and also vertical risers
which have complementary and interengaging fastening
The bottom ?ange 34 of the stringer is horizontally posi
tioned and is adapted to rest on the top of members 20.
means that secure them together. ‘Sections of decking
are then simply lowered between and supported on the 30 A stud 35 extends through each end of ?ange 34, and
is held captive therein by the nut 36. The lower end
parallel horizontal stringers and act to hold the stringers
of the stud is enlarged and is of such a. size that it will
apart in a locked position on the risers. Thus the sec
tions of decking act to rigidify the horizontal stringers
and also hold them in assembled relationship with the
pass through the larger end of opening 25 but not the
smaller one. To assemble the stringer on the plate
35 member 20, the stud is inserted in the large end of the
Generally, the invention provides a pier that is com
prised‘ of sections of supporting structure and decking
which can be easily slid into position without the builder
getting in the water and which are automatically locked
in position.
These and other objects and advantages will appear as
this disclosure progresses, reference being had to the
accompanying drawings, in which:
opening 25 and then is pushed outwardly to hold the
stud tightly captive in the opening, the stringer bearing
?rmly on the plate member. In this manner, the vertical
support sections and the horizontal stringers have com
plementary, interengaging parts by means of which they
are quickly joined together.
In the‘ example shown, the stringers are of eight foot
lengths and securely join the vertical support sections
FIGURE 1 is a perspective view of an assembled pier
[The wooden deck sections 40 and 4-1 are formed of
made in accordance with the present invention;
a series of transversely positioned planks 42 which are
FIGURE 2 is an enlarged, perspective view showing
fastened by nails, screws, or the like to a pair of longi
a portion of the pier between two adjacent sections of
tudinally extending wooden rails 43 and 44. In the
decking, but with one of the deck sections removed 'for
example shown, these wooden sections are of such a
the sake of clarity;
“ FIGURE 3 is an enlarged perspective view of the top 50 width that they ?ll the space between the vertical ?anges
end of a vertical riser and one end of one of the horizontal
38 of the pairs of stringers, thus holding the latter spaced
stringers which can be locked to the riser;
‘FIGURE 4 is a vertical sectional view taken trans
the vertical support sections. ‘In other words, when the
versely through a stringer and adjacent a deck locking
‘FIGURE 5 is a sectional view taken transversely through
a horizontal stringer adjacent‘ an end rail; and
FIGURE 6 is a perspective view of one end of the
end rail.
apart from one another and in the locked position on
deck sections are in place, they cause the studs 35 to be
55 ?rmly held in the small end of their respective key-hole
opening. The combined length of the two deck sections
is such that they occupy the length of a pair of stringers.
As shown in FIGURE 2, a T-shaped bar 46 sets between
the pair of stringers and rests on the lower ?anges thereof.
‘Referring in greater detail to the drawings, only two 60 This bar 46 is also located between the sections 40, 41
of the wooden deck, and the rails 43 and 44 of the latter
vertical support sections 10 and 11 are shown but any
rest on the horizontal ?anges of the bar 46. As shown
number may be utilized, depending on the length of pier
in FIGURE 4, these rails also rest on the nuts 36 and
desired. In the embodiment of the invention shown,
in this manner are held a slight distance above the hori
these sections are spaced about eight feet apart which
has proved to be a convenient distance. These vertical 65 zontal ?ange of the stringers. The space thus provided
sections each comprise two vertical legs 12 and 13 which
are rigidly held together in spaced apart relationship
by a cross member 14.
Member 14 is secured to these
between the rails and the stringers insures drainage of
Water from beneath the rails and does not form an area
in which water can accumulate to encourage rotting of
the deck, or accumulation of foreign matter.
vertical legs by a T-joint member 15 secured to each of
Locking means are provided between the stringers and
its ends by a screw 16. The vertical legs extend through 70
the deck sections to prevent the latter from accidental
the T members and the latter are adjustably ?xed at any
withdrawal from between the stringers as follows:
desired height on these legs by means of set screws 17.
Along the inner side of the vertical ?ange 38 of the
stringers extending between said pair of support sections,
stringers is formed a locking groove 39. A shiftable
locking pin 50 has a slot 51 through which a screw 52
passes to, hold the pin to the deck section. Such lock
ing pins may vbe suitably spaced along both sides of a
one at each side thereof, each of said stringers being
of L-shape-d cross section and having an upwardly extend
ing vertical ?ange and also a horizontal ?ange, said
sections and said stringers having an interengaging key
hole slot and ?anged stud for securing said stringers on
said support sections, said keyhole slots having a narrow
deck section, but a pin adjacent each corner of a deck
section has proved adequate to securely hold the deck
sections down between the stringers. As shown in FIG
URE 2, the pin 50 has been shifted to the locked position
portion extending outwardly, the ?ange of said studs
adapted to lock the latter in said narrow portions, said
where it is engaged in groove 39. ‘Because the groove 10 stud being in a locked position in said slot when said
39 is formed along the entire length of the extruded
stringers are urged to a spaced apart position from one
stringers, the spacing, number or positioning of the
another, and deck sections supported between said
cooperating piers is not critical, and the deck sections _ _ stringers and of such a size that they rest on said hori
are easily locked in place. ,
zontal ?anges and abut against said vertical ?anges and
When a su?icient length of pier has been assembled,
hold the stringers in said spaced apart and locked position
an end rail 55 prevents the last deck section from sliding
outwardly off of the stringers. More speci?cally, as
shown in FIGURE 6, the end rail 55 has its lower ?ange
turned upwardly at each end, and such upturned portion
has an aperture 56 therein. .The rail 55 may be secured
directly to the last deck section, or it may be installed
between the ends of the stringers before the last deck
section is dropped in place. In either event the apertures
on said sections, the width of said deck sections being
greater than the distance between the wider portions of
opposing keyhole slots.
2. A pier comprising, a pair of vertical support sections
positioned transversely in respect to said pier, a pair of
stringers extending between said pair of support sections,
one at each side thereof, said stringers each having a
vertical ?ange and a horizontal ?ange which together
constitute an L-shaped cross section, said sections and
the last deck section is prevented from shifting outwardly 25 said stringers having an interengaging keyhole slot and
from between its stringers. Thus the rail adds a ?nished
?anged stud for securing said stringers on said support
appearance to the end of the pier and matches the appear
sections, said keyhole slots having a narrow portion at
ance of the stringers as it can ‘be formed from the same ,
the outer side thereof, said ?anged studs assuming a
extruded stock of aluminum.
locked position in their respective keyhole slots when said
.To remove the deck sections, it is only necessary to 30 stringers are urged to a spaced apart position from one
withdraw the pins 50 from the grooves and then lift the
another, and deck sections between said pair of stringers
deck sections from between the stringers. To further
and supported on said horizontal ?anges and of such a
disassemble the pier, it is only necessary to shift the
size that they abut against the vertical ?anges and ?ll the
stringers inwardly toward one another in order that the
space between said vertical ?anges and thereby hold the
studs 35 are aligned with the large end of their respec 35 stringers in said spaced apart position and said ?anged
tive key-hole openings in the plate members 20. The
studs locked in said narrow portions of said keyhole slots.
stringers are then simply lifted from the vertical support
3. The combination set forth in claim 2 including,
sections and the latter lifted from the water.
locking means between said deck sections and said
The pier provided by the present invention can be
stringers for releasably locking the former between the
easily installed or disassembled in sections. The sections 40 latter.
are slid together and the parts are locked rigidly in place.
‘4. The arrangement as de?ned in claim 3 further
The vertical support sections provide good lateral stability
characterized in that said locking means comprises a
as well as good stability in a direction lengthwise of the
groove formed along said stringers and shiftable pins
pier. lThe stringers are easily positioned and shifted into
carried by said deck sections for engagement in said
the assembled position on the vertical supports. The 45 grooves.
interengaging means between the stringers and vertical
5. A pier as de?ned in.claim 4 further characterized
supports ?rmly hold them together. ‘By simply lowering
in that said sections each have a fastening plate at each
the deck sections into place, the stringers are prevented
side and at the top thereof, said stringers resting on their
from shifting to their release position. The deck sections
respective said plates, and said keyhole slots are located
substantially ?ll the area between the stringers to thus 50 in said plates.
aid in rigidifying the assembled pier. No tools are re
References Cited in the ?le of this patent
quired to either assemble or disassemble the pier, and
neither are any bolts or other fastening means required
and which frequently are dropped in the water or other
Rohrbach ___________ __ Sept. 29, 1885
wise lost.
56 are inserted over the nut 36 in the stringer end and
Various modes of carrying out the invention are con
templated as being within the scope of the following
claims particularly pointing out and distinctly claiming
the subject matter which is regarded as the invention.
vI claim:
1. A pier comprising, a pair of vertical support sections
positioned transversely in respect to said pier, a pair of
Rosen ______________ __ Apr. 10, 1917
Meyers _____________ __ Feb. 24, 1931
' 2,335,046
Droeger ____________ __ Nov. 23, 1943
gBurnham ____________ __ Oct. 16, 1951
Wanless ____- ________ __ Apr. 15, 1952
iNewell _____________ __ Aug. 31, 1954
Brattland ___________ __ June 19, 1956
Mutchnik __'_________ __ Apr. 14, 1959
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