Smoke detector-activated door seal

Details Smoke detector-activated door seal Smoke detector-activated door seal

1986-10-16

1987-11-17

Kannan, Philip C.

Movable or removable closures

Closure seal; e.g., striker gasket or weatherstrip

Inflatable or fluid pressure responsive

49 31, E05F 1520

Patent

active

047064137

ABSTRACT:
A smoke detector-activated door seal includes an extensible member in the form of an inflatable bladder disposed about the periphery of the door. A source of compressed air is connected to the bladder such that, upon a door-carried smoke detector sensing the presence of smoke, the source of compressed air inflates the bladder so as to provide a substantially airtight seal between the door and the door frame. A manually actuated release valve is provided to enable the seal to be released whenever desired.

REFERENCES:
patent: 3302333 (1967-02-01), Ganzinotti et al.
patent: 3507974 (1970-04-01), Clark et al.
patent: 3769750 (1973-11-01), Mayer et al.
patent: 3908309 (1975-09-01), Coulter et al.
patent: 3968597 (1976-07-01), Hirtle
patent: 4034437 (1977-07-01), Robertson et al.
patent: 4073521 (1978-02-01), Mena
patent: 4335075 (1982-06-01), Kackos
patent: 4441278 (1984-04-01), Covey

Affiliated with

Also associated with

Rating

Smoke detector-activated door seal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Smoke detector-activated door seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Smoke detector-activated door seal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1441651