Block and tackle sash balance shoe

Details Block and tackle sash balance shoe Block and tackle sash balance shoe

2006-07-04

2006-07-04

Mah, Chuck Y. (Department: 3677)

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Sash balances

Cord and counterweight

C016S197000, C049S445000, C049S447000

Reexamination Certificate

active

07069621

ABSTRACT:
A sash balance shoe housing designed to move along a window frame contains a spring attached to the housing and to a first pulley block that is movable along the housing, a second pulley block fixed against movement along the housing integrally molded with a brake mechanism bearing surface for supporting a cam designed to connect to a sash, and a cord attached by one end to one of the first pulley block and the second pulley block, wrapped around at least one pulley in each block and extending from the housing for attaching the other end to the window frame.

REFERENCES:
patent: 2774119 (1956-12-01), Osten
patent: 4068406 (1978-01-01), Wood
patent: 4089085 (1978-05-01), Fitzgibbon
patent: 4190930 (1980-03-01), Prosser
patent: 4332054 (1982-06-01), Paist et al.
patent: 4610108 (1986-09-01), Marshik
patent: 4949425 (1990-08-01), Dodson et al.
patent: 4958462 (1990-09-01), Cross
patent: 5127192 (1992-07-01), Cross
patent: 5669180 (1997-09-01), Maier
patent: 5806243 (1998-09-01), Prete et al.
patent: 5873199 (1999-02-01), Meunier et al.
patent: 6151832 (2000-11-01), Opielski et al.
patent: 6332288 (2001-12-01), Guillemet et al.
patent: 6467128 (2002-10-01), Damani
patent: 6622342 (2003-09-01), Annes et al.
patent: 6840011 (2005-01-01), Thompson et al.
patent: 2002/0129463 (2002-09-01), Newman
patent: 2003/0056320 (2003-03-01), Newman et al.

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