Movable or removable closures – With safety brake or catch
Reexamination Certificate
2005-03-08
2005-03-08
Strimbu, Gregory J. (Department: 3634)
Movable or removable closures
With safety brake or catch
C049S200000
Reexamination Certificate
active
06862845
ABSTRACT:
A drop-catch mechanism for preventing the door leaf of an overhead door from rapidly closing upon breakage of the balancing spring thereof. The drop-catch mechanism having an input member for coupling with the balancing spring of the overhead door, a ratchet wheel for coupling with a winding axle carrying the door leaf of the overhead door, a pawl, and a positive mechanical drive for moving the pawl from a free position that allows rotation of the ratchet wheel to a catching position that blocks rotation of the ratchet wheel, the positive mechanical drive being configured such that, in use, breakage of the balancing spring coupled to the input member causes the pawl to move from the free position to the catching position.
REFERENCES:
patent: 1863961 (1932-06-01), Ball et al.
patent: 3842892 (1974-10-01), Stieler
patent: 4448290 (1984-05-01), Reid et al.
patent: 4582179 (1986-04-01), Nelson
patent: 4997022 (1991-03-01), Klein
patent: 5494093 (1996-02-01), Eiterman
patent: 5706552 (1998-01-01), Hsieh
patent: 5971055 (1999-10-01), Rohaut
patent: 84 21 051 (1985-11-01), None
patent: 198 55 697 (2000-02-01), None
patent: 0 722 031 (1996-01-01), None
patent: 0 803 626 (1997-10-01), None
Flexi-Force, B.V.
Strimbu Gregory J.
Swanson & Bratschun LLC
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