U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Concrete form wall spacer

Patent 5937604 Issued on August 17, 1999. Estimated Expiration Date: Icon_subject August 21, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

1863115

2161855

3154281

Barrier structure
Patent #: 4496264
Issued on: 01/29/1985
Inventor: Casey

Modular building-block form
Patent #: 4884382
Issued on: 12/05/1989
Inventor: Horobin

Rebar matrix spacer
Patent #: 5216866
Issued on: 06/08/1993
Inventor: Ekedal

Concrete form walls
Patent #: 5390459
Issued on: 02/21/1995
Inventor: Mensen

Foundation construction
Patent #: 5421136
Issued on: 06/06/1995
Inventor: Van De Peer

Connecting member for concrete form
Patent #: 5459971
Issued on: 10/24/1995
Inventor: Sparkman

Holder for vertical steel rebar
Patent #: 5688428
Issued on: 11/18/1997
Inventor: Maguire

More ...

Inventor

Application

No. 137582 filed on 08/21/1998

US Classes:

52/426, With transverse tie52/442, Dissimilar material member in section52/677, Spacer-positioner; e.g., rebar chair52/715, Sheet form with tabs oppositely extending from base sheet248/229.16Clamped to mounting surface by resilient clip

Examiners

Primary: Friedman, Carl D.
Assistant: Kong, Timothy B.

Attorney, Agent or Firm

International Class

E04G 017/06

Abstract

A concrete forms wall spacer is provided in the configuration of a truss having top and bottom horizontal frame members interconnected by angularly extending reinforcing struts. The top frame member is configured to rest upon the upper edges of a pair of spaced concrete form walls, and end portions of the top frame member are extended downward for abutment by the outer sides of the spaced concrete form walls, to define the desired spacing between the walls. Supported by the bottom frame member are a pair of spaced clip members each configured to removably support a pair of lengths of rebar which extend horizontally in opposite directions to other longitudinally spaced form wall spacers. A pair of vertically spaced rebar supports are mounted on the top and bottom frame members for frictionally securing a vertically extending length of rebar for forming a structural tie between a concrete footing and a vertically extending concrete wall. In a second embodiment of the invention, a plurality of pairs of vertically spaced rebar supports for vertical rebar are provided as detachable components.

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