Access control booth with arcuate doors

Details Access control booth with arcuate doors Access control booth with arcuate doors

1991-03-25

1993-01-19

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

49 41, H04Q 100

Patent

active

051810182

ABSTRACT:
An access control booth 10 includes a housing 12 having a base member 26, a roof member 28 and a side wall portion 30 extending between the base member 26 and the roof member 28, the side wall portion 30 having a circular inner plan profile to define a pair of opposed arcuate access openings 14, 16. A pair of counter-pivoted arcuate members 20, 24 close the access openings 14, 16, respectively. Each arcuate member 20, 24 has a first arm pivotally mounted within the roof member 28, a second arm pivotally mounted beneath the base member 26 and an arcuate wall portion extending between the first arm and the second arm. A torsion-bar assembly is connected to the first arm and the second arm of each arcuate member 20, 24 for inhibiting twisting of the arcuate member 20, 24 as it pivots, the torsion-bar assembly being arranged inwardly of the arcuate wall portion of the arcuate member 20, 24.

REFERENCES:
patent: 2728625 (1955-12-01), Blahnik
patent: 3564132 (1971-02-01), Baker
patent: 4121523 (1978-10-01), Hastings
patent: 4244302 (1981-01-01), Stine
patent: 4481887 (1984-11-01), Urbano
patent: 4928429 (1990-05-01), Columbo

Affiliated with

Also associated with

Rating

Access control booth with arcuate doors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Access control booth with arcuate doors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Access control booth with arcuate doors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-104347