Static structures (e.g. – buildings) – Mechanism operated relatively movable shaft assembly
Patent
1995-09-18
1997-03-18
Friedman, Carl D.
Static structures (e.g., buildings)
Mechanism operated relatively movable shaft assembly
212293, 200 47, E04H 1234
Patent
active
056111770
ABSTRACT:
In one aspect of the present invention, this is accomplished by providing a tower that includes a fixed member; at least one movable tower member, the at least one movable tower member is movable relative to the fixed member. The tower also includes a drive for moving the at least one movable tower member when power is supplied to the drive; and a tower position detection system comprising: a switch mounted on the fixed member and electrically connected to the drive, and an actuator member mounted in a predetermined position along the length of one of the at least one movable tower members so that when the one of the at least one movable tower members is in a predetermined location relative to the fixed member, the actuator is located proximate the switch to open the switch and terminate the supply of power to the drive.
REFERENCES:
patent: 3817007 (1974-06-01), Hall
patent: 4057942 (1977-11-01), Kranefeld et al.
patent: 4118907 (1978-10-01), Small et al.
patent: 4156331 (1979-05-01), Lester et al.
patent: 4699281 (1987-10-01), Kishi
patent: 5249643 (1993-10-01), Backer
patent: 5412361 (1995-05-01), Combest et al.
patent: 5416456 (1995-05-01), Light
Aubrey Beth A.
Friedman Carl D.
Gnibus Michael M.
Ingersoll-Rand Company
LandOfFree
Portable tower with tower member position detection system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable tower with tower member position detection system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable tower with tower member position detection system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1698151