Vent closure arrangement

Static structures (e.g. – buildings) – Controlled by condition responsive means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

49 4, 49 7, 49379, E05F 1520

Patent

active

039771342

ABSTRACT:
A roof vent for releasing smoke and heat from a building in the case of a fire is provided with a cover mounted on two track members for movement in the common direction of elongation of the track members which define therebetween an opening through the roof. The cover is permanently biased away from the position in which it closes the roof opening, but is normally retained in its closing position by a detent device which may be inactivated by temperature sensitive apparatus in the case of a fire. The operating elements of the vent are concealed from view and protected from the elements by being arranged under the cover member.

REFERENCES:
patent: 730373 (1903-06-01), Izatt
patent: 1006374 (1911-10-01), Erb
patent: 1137473 (1915-04-01), Ford
patent: 1239421 (1917-04-01), Metzger
patent: 1689131 (1928-10-01), Goodwin
patent: 3189142 (1965-06-01), Carlson
patent: 3577691 (1971-05-01), Persson
patent: 3589065 (1971-06-01), Watson
patent: 3815299 (1974-06-01), Sorensen

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Vent closure arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vent closure arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vent closure arrangement will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1807848

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.