Method and apparatus for door protection

Details Method and apparatus for door protection Method and apparatus for door protection

1982-08-12

1985-01-15

Kannan, Philip C.

Movable or removable closures

Facially opposed primary and auxiliary closure for common...

Auxiliary mounted for movement

49 31, E06B 6504

Patent

active

044931646

ABSTRACT:
This invention is a method and an apparatus by which a barrier is automatically placed before partially opened doors, which barrier is automatically removed when the door is fully opened and safe for travel. The invention includes means to detect when the door is fully opened and thereupon to activate barrier removal means, together with barrier placement means automatically activated at any time when the door is not fully opened.

REFERENCES:
patent: 1749985 (1930-03-01), Peelle
patent: 2449326 (1948-09-01), Schaefer
patent: 2458402 (1949-01-01), Myers
patent: 2770455 (1956-11-01), Brister
patent: 3103967 (1963-09-01), Gaschen
patent: 3616575 (1971-11-01), Harris
patent: 4356668 (1982-11-01), Wagner

Affiliated with

Also associated with

Rating

Method and apparatus for door protection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for door protection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for door protection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1476069