Semi-manually operated service window

Details Semi-manually operated service window Semi-manually operated service window

1986-06-24

1987-02-10

Downey, Kenneth

Movable or removable closures

Closures interconnected for concurrent movement

Closures mounted for swinging

49104, 49333, E05C 706

Patent

active

046414606

ABSTRACT:
An access window for use in fast food establishments and other similar drive-thru business establishments is disclosed. The window broadly comprises a semi-manually operated closing mechanism along with two planar window members. The closing mechanism employs substantially flat circumferential grooves cut into rotors located in a bottom hinge assembly. These rotors, together with a flexible elastic linkage, enable the uniform and smooth rotation of the window members from a fixed closed to a fixed open position and enable the window members to be rotated from a fixed open to a fixed closed position when either of the window members are pulled or pushed a short distance in the direction of the closed position.

REFERENCES:
patent: 3206187 (1965-09-01), Cagley
patent: 4411102 (1983-10-01), Radek
patent: 4442630 (1984-04-01), Radek

Affiliated with

Also associated with

Rating

Semi-manually operated service window does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semi-manually operated service window, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semi-manually operated service window will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2357377