Spring cover friction system for sash balance

Details Spring cover friction system for sash balance Spring cover friction system for sash balance

1987-06-05

1988-10-25

Kannan, Philip C.

Movable or removable closures

With means mounting closure for reciprocation

Diverse or springy material guide or slide

49445, E05D 1312

Patent

active

047793805

ABSTRACT:
An extruded resin jamb liner (10) has a spring cover (12) with a longitudinal slit (15) in which a platform (20) moves for balancing a sash. Platform (20) is a single piece resin part having a spring connector (30) inside the spring cover, a neck (24) extending through the slit, and a sash support (25) outside the spring cover. The platform also has inside and outside friction surfaces (26 and 27) respectively engaging inward and outward facing surfaces of the spring cover on opposite sides of the slit to provide a load-related frictional resistance against vertical movement of the platform in the slit.

REFERENCES:
patent: 2593658 (1952-04-01), Davis
patent: 2747219 (1956-05-01), Haas
patent: 3482354 (1969-12-01), Trout
patent: 3499248 (1970-03-01), Baer
patent: 3524282 (1970-08-01), Kraft et al.
patent: 3633317 (1972-01-01), Koebel
patent: 4570382 (1986-02-01), Suess
patent: 4571887 (1986-02-01), Haltof

Affiliated with

Also associated with

Rating

Spring cover friction system for sash balance 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 cover friction system for sash balance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spring cover friction system for sash balance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2261520