Concave buckle for strap

Details Concave buckle for strap Concave buckle for strap

2007-02-06

2007-02-06

Sandy, Robert J. (Department: 3677)

Buckles, buttons, clasps, etc.

Bale and package ties, hose clamps

Metal bands

C024S0200CW, C024S0230EE, C024S0230EE, C024S022000

Reexamination Certificate

active

11000139

ABSTRACT:
A buckle achieves improved strap tensile strength by providing a bridge portion, about which a free end of a buckle strap is wrapped in tension, with an inwardly projecting concave surface to create a greater deformation of the strap under tension. The buckle also includes at least one strengthening cross rib on the bridge portion and a strap receiving inset with a concave shaped pocket to improve the strap tensile strength. Furthermore, the buckle includes a bendable retainer element with an inwardly directed clamping tab near its free moving end to retain a portion of the strap within the buckle.

REFERENCES:
patent: 1652813 (1927-12-01), Cary
patent: 1783247 (1930-12-01), Leslie
patent: 1855007 (1932-04-01), Bradley
patent: 4473925 (1984-10-01), Jansen
patent: 4866817 (1989-09-01), Espevik et al.
patent: 5048575 (1991-09-01), Smith
patent: 5615458 (1997-04-01), Rouchaud
patent: 1 359 357 (2003-11-01), None
patent: 2 547 707 (1984-12-01), None
patent: 2 088 466 (1982-06-01), None

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