Balance system for laterally biased sash guides

Details Balance system for laterally biased sash guides Balance system for laterally biased sash guides

1990-12-20

1992-06-09

Kannan, Philip C.

Movable or removable closures

With means mounting closure for reciprocation

Slide or guide feature for closure removal

49161, 49414, 49419, 49430, 49446, E05D 1300

Patent

active

051195925

ABSTRACT:
Counterbalance mechanisms for a vertically movable sash have components extending downward within guides on which the sash moves. The guides can move laterally of the sash to allow the sash to tilt and be removed from the window, and the counterbalance components are arranged within the guides to accommodate such lateral movement. Slots in the guides accommodate interconnections between counterbalance components within the guides and the sash running vertically against outward surfaces of the guides, and these interconnections also allow lateral movement of the guides and tilting of the sash. The guides are mounted on window jambs by resilient elements that bias the guides into engagement with sash grooves and also accommodate lateral movement of the guides out of the sash grooves, to allow the sash to tilt.

REFERENCES:
patent: 2952048 (1960-09-01), Graham
patent: 3195194 (1965-07-01), Young, Jr.
patent: 3498000 (1970-03-01), Nobes
patent: 3499248 (1970-03-01), Baer
patent: 3724131 (1973-04-01), Schnormeier
patent: 4283883 (1981-08-01), Sterner, Jr.
patent: 4581850 (1986-04-01), Simpson
patent: 4993188 (1991-02-01), Erickson et al.

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