Low friction adjustable roller pin

Details Low friction adjustable roller pin Low friction adjustable roller pin

2011-05-24

2011-05-24

Lugo, Carlos (Department: 3673)

Closure fasteners

Bolts

Multiple

C292S009000, C292S150000, C049S394000

Reexamination Certificate

active

07946633

ABSTRACT:
A roller pin of the type mounted on a tie bar that slides to drive the roller pin into engagement with a keeper of a casement window includes an inner pin and an outer roller. The outer roller includes an integral outer flange that is circular and spins with the outer roller to reduce friction during engagement with keeper. The inner pin includes an offset mounting pin at one end and is enlarged at the other end to hold the outer roller on the inner pin. The enlarged end of the inner pin is flush with the outer flange and is provided with a recessed opening that receives a tool, such as a screwdriver, to rotate the inner pin and adjust its position relative to the tie bar and a keeper. The invention is also directed to a tie bar and multiple roller pins in combination.

REFERENCES:
patent: 4621847 (1986-11-01), Paulson et al.
patent: 4803808 (1989-02-01), Greisenr
patent: 5072489 (1991-12-01), Aumercier
patent: 5318333 (1994-06-01), Dreifert
patent: 5370428 (1994-12-01), Dreifert et al.
patent: 5553420 (1996-09-01), Klimek
patent: 5782114 (1998-07-01), Zeus et al.
patent: 5964011 (1999-10-01), Ruston et al.
patent: 6450554 (2002-09-01), Rotondi et al.
patent: 6651389 (2003-11-01), Minter et al.
patent: 2003/0079414 (2003-05-01), Rangabasyam et al.
“WW Kurier-GLS”, One-Hand-Operation Fittings, Edition Jan. 1989.
“ROTO WW 41”, Espagnolettes for Outward Opening Windows, Edition Jan. 1990.

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