Spring sash counterbalance

Details Spring sash counterbalance Spring sash counterbalance

1975-06-23

1976-11-23

Schroeder, Werner H.

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

Sash balances

Spring

49445, E05D 1312, E05D 1700

Patent

active

039927512

ABSTRACT:
A counterbalance for a window sash which comprises a bracket for securement to the window frame and which bracket contains spaced-apart slide plates with at least a pair of vertically spaced-apart transverse elements extending therebetween; there being a self-coiling spring suspended from each transverse member by means of the free end of such coil being lead over said transverse member. The free ends of said coil springs are connected to each other and then secured to a movable window sash for effectively counterbalancing same during movement between open and closed condition. Said transverse elements permit of at least two-point contact with said spring free ends whereby rocking of the spring coils is inhibited during sash counterbalancing operation.

REFERENCES:
patent: 2262990 (1941-11-01), Cross et al.
patent: 2635282 (1953-04-01), Trammell, Sr. et al.
patent: 2684499 (1954-07-01), Lewis
patent: 3820193 (1974-06-01), Foster

Affiliated with

Also associated with

Rating

Spring sash counterbalance does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spring sash counterbalance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spring sash counterbalance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-223761