Electricity: magnetically operated switches – magnets – and electr – Permanent magnet-actuated switches
Reissue Patent
2006-01-17
2010-10-05
Barrera, Ramon M (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Permanent magnet-actuated switches
Reissue Patent
active
RE041793
ABSTRACT:
A bracket assembly for mounting a reed switch and associated magnet on an overhead opening door includes first and second interlocking pieces, both of which are stamped from sheet metal that is, preferably, non-ferromagnetic. Each of the pieces incorporates an opening sized to slidably receive a locking door bolt fabricated from a ferromagnetic material such as mild or hardened steel. For a currently preferred embodiment of the invention, both pieces of the bracket assembly are stamped from sheet aluminum. Both the reed switch and its associated magnet mount may mount on either piece, so long as they are on opposite sides of the opening. The assembly incorporates an opening that is sized to receive a slidable, locking bolt fabricated from a ferromagnetic material such as mild or hardened steel. When the bolt is withdrawn from the opening, the reed switch is activated, thereby generating a signal which can be input to a security system. For a preferred embodiment of the invention, both the reed switch and the magnet are adhesively bonded to the bracket assembly on opposite sides of the opening. The first and second pieces reversably snap together to form a box in which the reed switch and the magnet are enclosed. In order to install the bracket assembly on the rail of an overhead door track, screws or rivets are placed through both the first and second pieces and secured to the door track rail.
REFERENCES:
patent: 3803575 (1974-04-01), Gotanda
patent: 4027907 (1977-06-01), Crepinsek
patent: 6124792 (2000-09-01), Shoen et al.
patent: 6249224 (2001-06-01), Shoen et al.
patent: 6977570 (2005-12-01), Gilmore
U-Haul, UHICS-009, U-Haul Contact Installation Diagram, 1999, 1 page.
Security Dealer Access Control, Overhead Door Protection, Mar. 1998, p. 68.
Carlson William R.
Jolley Daniel M.
Barrera Ramon M
Quick Switch Enterprises, LLC
Thorpe North & Western LLP
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