Movable or removable closures – Mounted for optional movements – Pivot mounted on sliding member; e.g. – slide-stile
Reexamination Certificate
2011-06-28
2011-06-28
Strimbu, Gregory J. (Department: 3634)
Movable or removable closures
Mounted for optional movements
Pivot mounted on sliding member; e.g., slide-stile
C049S176000, C049S445000
Reexamination Certificate
active
07966770
ABSTRACT:
A counterbalance assembly for counterbalancing a tilt-in window sash within a guide track of a window frame. A brake shoe housing is provided having a face section and a rear section defined between a top edge, a bottom edge, and two side edges. At least one of the two side edges is a curved surface having a convex curvature. A curl spring is provided having a free end. The free end of the curl spring engages the brake shoe housing, therein applying a turning torque to the brake shoe housing that cocks the brake shoe housing and moves the curved surface into tangential contact with the guide track. A cam actuator is interposed between the face section and the rear section that spreads these sections into contact with the guide track when the tilt-in window sash is tilted forward.
REFERENCES:
patent: 1097524 (1914-05-01), Brownjohn
patent: 2778068 (1957-01-01), Kaufman et al.
patent: 3055063 (1962-09-01), Peters
patent: 3462882 (1969-08-01), Brown, Jr.
patent: 4227345 (1980-10-01), Durham, Jr.
patent: 4718194 (1988-01-01), FitzGibbon et al.
patent: 5353548 (1994-10-01), Westfall
patent: 5463793 (1995-11-01), Westfall
patent: 6032417 (2000-03-01), Jakus et al.
patent: 6119398 (2000-09-01), Yates, Jr.
patent: 6378169 (2002-04-01), Batten et al.
patent: 2004/0006845 (2004-01-01), Polowinczak et al.
LaMorte & Associates P.C.
Strimbu Gregory J.
LandOfFree
Rounded shoe and position brake assembly for the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rounded shoe and position brake assembly for the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rounded shoe and position brake assembly for the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2625107