|Publication number||US3447771 A|
|Publication date||Jun 3, 1969|
|Filing date||Aug 14, 1967|
|Priority date||Aug 14, 1967|
|Publication number||US 3447771 A, US 3447771A, US-A-3447771, US3447771 A, US3447771A|
|Inventors||Trimmer James E|
|Original Assignee||Trimmer James E|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (1), Referenced by (22), Classifications (7)|
|External Links: USPTO, USPTO Assignment, Espacenet|
June 3, 1969 J E. TR|MMER 3,447,771
REINFORCEMENT FOR CONCRETE WALL FORM CONNECTORS Filed Aug. 14, 1967 30 xl /4 1 F15. i.
32 rle 22 I NV EN TOR dames 5 7kb/mer TTORNEYS United States Patent O 3,447,771 REINFORCEMENT FOR CONCRETE WALL FORM CONNECTORS `lames E. Trimmer, 7713 E. 113th St., Kansas City, M0. 64134 Filed Aug. 14, 1967, Ser. No. 660,464 Int. Cl. E04g 17/04, l] 08 U.S. Cl. 249-192 1 Claim ABSTRACT OF THE DISCLOSURE The success and acceptance of the conventional pin and wedge type of connector for concrete wall forms is evidenced by its widespread use, but there exists a dilllcult problem that has not heretofore been solved relating to damage to the form with resultant replacement costs. To the end that the forms may be rapidly disassembled, it is the current practice to remove the connector by hammer blows to the wedge and to the pin with resultant damage to the form at the pin-receiving hole of the flanges.
It is the most important object of the present invention, therefore, to provide a protection for the forms through use of a hard metal liner within the holes capable of withstanding the abuse to which the form is subjected during use, especially during removal of the connectors. Another important object of the instant invention is to solve the aforementioned problem through use of the hard metal liner by the provision of an inexpensive plate which serves to hold the liner in place through an interconnection between the plate and the liner as well as the plate and the corresponding flange of the panel.
In the drawing:
FIGURE 1 is a perspective view illustrating a portion of a concrete wall form illustrating the reinforcing connector made pursuant to my present invention;
FIG. 2 is a fragmentary perspective view of the wall form partially exploded and broken away to reveal details of construction of the connector;
FIG. 3 is a view similar to FIG. 2 illustrating the connector in place;
FIG. 4 is an enlarged, fragmentary, cross-sectional view taken along line 4 4 of FIG. 3; and
FIG. 5 is a vertical cross-sectional View through one of the flanges as well as through the reinforcing liner and its mounting plate.
Wall form includes a plurality of side-by-side panels 12 provided with laterally extending flanges 14 having aligned openings 16 which normally receive connecting pins 18. Pins 18 have heads 20 on one end thereof together with slots 22 for receiving locking wedges 24.
3,447,771 Patented June 3, 1969 Disassembly of the panels 12 is normally accomplished by hammer blows to the beveled end 26 of the pin 18 which loosens the wedge 24 and as a result of such hammering action, the holes 16 become damaged, .oftentimes to the point where the entire panel 12 must be replaced.
In accordance -with the instant invention, therefore, I provide a tubular liner 28 for each hole 16 respectively made from any suitable hard metal such as steel capable of withstanding the aforementioned abuse and having a bore therethrough of sulllcient diameter to receive the pin 18, as best illustrated in FIG. 4.
The liner 28 of my improvement is held in place within the corresponding opening 16 by a plate 30 held flatly against the corresponding flange 14 by a pair of rivets 32. It is to be noted that the plates 30 are perforated to receive the liners 28, the latter being rigidly secured to the plate 30 by a weld 34 surrounding the liner 28.
With this construction the plates 30 may be stamped from any suitable inexpensive sheet material, and the entire protector 28-30 for the openings 16 may be quickly and inexpensively manufactured without need for machine or other costly operation. Such protector is characterized by long wear and by the ease in which it may be replaced without appreciable cost from time to time as may become necessary, thereby adding considerable life to the panel 12.
Having thus described the invention, what is claimed as new and ydesired to be secured by Letters Patent is:
1. In a concrete wall form including a plurality of panels provided with flanges having aligned openings, a connector comprising:
a hard metal, tubular reinforcing liner in each opening respectively;
a pin passing through the liners,
said pin having a head on one end thereof and a slot adjacent its opposite end;
a wedge in the slot for clamping the flanges between the head and the wedge;
structure attaching the liners to the flanges,
said structure including an elongated, rectangular plate mounted on each liner respectively and secured to the corresponding flange,
each plate having a hole receiving its liner, there being a Weld around the hole attaching the liner to the plate; and
rivets securing the plates to the flanges,
each of said liners having a length equal to the thickness of a corresponding flange,
said liners being in abutting relationship.
References Cited UNITED STATES PATENTS 3,077,653 2/1963 Ward 25-131 J. SPENCER OVERHOLSER, Primary Examiner. D. W. JONES, Assistant Examiner.
U.S. Cl. X.R. 249--219
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US3077653 *||Sep 7, 1960||Feb 19, 1963||Ward Edward B||Concrete wall form|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3603557 *||Jul 2, 1968||Sep 7, 1971||Fmc Corp||Apparatus for aligning forms|
|US3614051 *||Dec 15, 1969||Oct 19, 1971||Precise Forms Inc||Ledger form for concrete structures|
|US3653629 *||Mar 14, 1969||Apr 4, 1972||Anza Pacific Corp||Building corner form structure|
|US3703762 *||Apr 12, 1971||Nov 28, 1972||Fmc Corp||Method of aligning forms|
|US3734451 *||Apr 19, 1971||May 22, 1973||T W T Properties||Panel for concrete wall forms|
|US3899155 *||Oct 23, 1973||Aug 12, 1975||Ward Edward B||Concrete form panels with hollow reinforcing ribs|
|US4194717 *||Oct 18, 1978||Mar 25, 1980||Easton John T||Wedge and bolt assembly for panel units|
|US4708315 *||Jun 30, 1986||Nov 24, 1987||Western Forms, Inc.||Multiple purpose concrete form with side rail stiffeners|
|US4744541 *||May 12, 1986||May 17, 1988||Western Forms, Inc.||Multiple purpose concrete form|
|US4975009 *||May 24, 1989||Dec 4, 1990||Easton John T||Bolt and wedge assembly for panel units|
|US5065489 *||Jul 28, 1988||Nov 19, 1991||Eastman Kodak Company||Apparatus for aligning and mounting machine components|
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|US5833873 *||Aug 21, 1997||Nov 10, 1998||Structural Countours, Inc.||Aluminum concrete forming system|
|US5904875 *||Jan 16, 1998||May 18, 1999||Myers; Dallas E.||Sloped wedge for use with concrete wall panel pins|
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|US6905106||Oct 31, 2003||Jun 14, 2005||Featherlite Innovations, Inc.||Tapered pin for poured concrete wall form panels|
|US20040075040 *||Jan 10, 2002||Apr 22, 2004||Scallan Patrick Joseph||Moulding of concrete walls|
|US20040089787 *||Oct 31, 2003||May 13, 2004||Feather Lite Innovations, Inc.||Tapered pin for poured concrete wall form panels|
|US20050066609 *||Sep 26, 2003||Mar 31, 2005||Olah Timothy J.||Preassembled roof and floor deck panel system|
|US20140086665 *||Sep 23, 2013||Mar 27, 2014||Netapp, Inc.||Rail system for supporting equipment in a rack|
|U.S. Classification||249/192, 29/464, 29/525.3, 249/219.1|