Invention Grant
- Patent Title: Locking entry grid
- Patent Title (中): 锁定入口网格
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Application No.: US886386Application Date: 1997-07-01
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Publication No.: US5852902APublication Date: 1998-12-29
- Inventor: James J. Hopper, II
- Applicant: James J. Hopper, II
- Applicant Address: KS Wichita
- Assignee: Balco Metalines, Inc.
- Current Assignee: Balco Metalines, Inc.
- Current Assignee Address: KS Wichita
- Main IPC: A01K1/015
- IPC: A01K1/015 ; E04C2/42 ; E04F19/10 ; E04F17/10
Abstract:
An entry grid includes a plurality of spaced, side-by-side, grid sections each having a tread rail and a depending support leg with sections interlocked by a locking bar extending transversely through respective locking holes in the support legs. The support legs include locking teeth engaged by complementally configured element teeth of corresponding locking elements extending radially from the locking bar shaft.
Public/Granted literature
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