Shoe support terminal connection for block and tackle balance

Details Shoe support terminal connection for block and tackle balance Shoe support terminal connection for block and tackle balance

2008-01-30

2011-10-04

Miller, William L. (Department: 3677)

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

Sash balances

Spring

C049S445000

Reexamination Certificate

active

08028377

ABSTRACT:
In a block and tackle window balance, the balance shoe holds and upwardly biases the terminal connector in a mounted position. A biasing element of the shoe maintains the terminal connector in a pocket of the shoe during operation of the balance. The terminal connector is prevented from laterally exiting the pocket in the mounted position by a widened portion on the terminal connector and a locating surface extending from the shoe toward the pocket. Manually pressing down on the biasing element or the terminal connector itself to lower the terminal connector in the pocket until the widened portion clears the locating surface allows lateral removal of the terminal connector from the pocket. During operation of the balance, however, the terminal connector does not experience a sufficient downward force to overcome the upward bias such that the widened portion never clears the locating surface.

REFERENCES:
patent: 4654928 (1987-04-01), Flight
patent: 4689850 (1987-09-01), Flight
patent: 5530991 (1996-07-01), deNormand
patent: 6041476 (2000-03-01), deNormand
patent: 6622342 (2003-09-01), Annes et al.
patent: 6820368 (2004-11-01), Uken et al.
patent: 7069621 (2006-07-01), Malek
patent: 7735192 (2010-06-01), deNormand
patent: 2006/0000058 (2006-01-01), Robertson

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