Lawrence M Stoddard
Engineers at Iris St, Arvada, CO
License number
Colorado 17017
Issued Date
Feb 15, 1980
Renew Date
Mar 1, 2008
Expiration Date
Feb 28, 2010
Type
Professional Engineer
Address
Address
7345 Iris St, Arvada, CO 80005
Professional information
Alarm Sensor Apparatus For Closures
US Patent:
4593491, Jun 10, 1986
Filed:
Jan 31, 1984
Appl. No.:
6/575599
Inventors:
James A. Carlson - Thornton CO
Lawrence M. Stoddard - Arvada CO
Lawrence M. Stoddard - Arvada CO
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
Department of Energy - Washington DC
International Classification:
G08B 1308
US Classification:
49 13
Abstract:
An alarm sensor apparatus for closures such as doors and windows, and particularly for closures having loose tolerances such as overhead doors, garage doors or the like, the sensor apparatus comprising a pair of cooperating bracket members, one being attached to the door facing or frame work and the other to the door member, two magnetic sensor elements carried by said bracket members, the bracket members comprising a pair of cooperating orthogonal guide slots and plates and a stop member engageable with one of the sensors for aligning the sensors with respect to each other in all three orthogonal planes when the door is closed.