WILLIAM BLAIR OSBORNE
Pilots at Hosmer St, Marlboro, MA
License number
Massachusetts A1429105
Issued Date
Feb 2015
Expiration Date
Feb 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
532 Hosmer St, Marlboro, MA 01752
Professional information
Monitored Fire Protection System
US Patent:
4101887, Jul 18, 1978
Filed:
Sep 24, 1976
Appl. No.:
5/726209
Inventors:
William B. Osborne - Marlboro MA
Assignee:
Walter Kidde and Co., Inc. - Clifton NJ
International Classification:
G05B 2300
US Classification:
340652
Abstract:
An electrical fire protection system including a plurality of extinguishant filled suppressor units activatable by explosive squibs connected in series. In response to the detection of an abnormal condition associated with fires, a control circuit initiates an activating current flow that detonates the explosive squibs and induces release of the extinguishant from the suppressor units. A supervisory current supply establishes through the series connected squibs, a constant level of supervisory current flow that is insufficient to induce detonation of the squibs but establishes a detectable voltage drop thereacross. In response to the detection of an abnormally high voltage level across the series connected squibs, a switching circuit switches the squibs from a series to a parallel circuit relationship.
Series To Parallel Transfer Circuit For Initiator String
US Patent:
3952809, Apr 27, 1976
Filed:
Mar 14, 1975
Appl. No.:
5/558471
Inventors:
William B. Osborne - Marlboro MA
Assignee:
Walter Kidde & Co., Inc. - Clifton NJ
International Classification:
A62C 3704
US Classification:
169 61
Abstract:
A fire protection system including a plurality of suppressor units activatable to suppress a detected fire; a plurality of electrical current responsive activators, one associated with each of the suppressor units and adapted to induce activation thereof; a control circuit connecting the activators in series and including an actuator for initiating activating current flow to the activators; and an auxiliary circuit for connecting the activators parallel in response to the initiation of activating current flow by the actuator, the auxiliary circuit including a plurality of electronic switches, one connected between the supply and each of the junctions between each pair of series connected activators.