Self-closing hinge and isolation door installation

Details Self-closing hinge and isolation door installation Self-closing hinge and isolation door installation

1986-06-16

1987-09-15

Silverberg, Fred

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Hinge

Having means to reduce friction between hinge parts

16284, 16285, 16301, 16315, E05F 114

Patent

active

046929630

ABSTRACT:
A self-closing isolation door installation adapted to swing between a closed and an open position. A resilient gasket is connected about the periphery of the door to insure a tight seal. The door has a rotatable first hinge vertically mounted and adapted for mounting to the side of a door frame. A second self-closing hinge is provided including an elongated C-shaped bracket mounted into the edge of the door. The C-shaped bracket includes a vertical support strut, upper arm and lower arm. A support shaft is vertically fixed between the upper arm and the lower arm. A housing bracket is mounted to the shaft and is adapted for mounting to the side of the door frame. The housing bracket defines an inverted V-shaped cam surface. A cam follower including a radially spaced apart inner follower roller and an outer follower roller is mounted around the shaft with the outer roller adapted for vertical movement within a slot in the strut and the inner roller is engageable to follow the cam surface. A compression spring mounted around the shaft biases the follower body to bias the inner roller against the V-shaped cam surface and thereby to apply closing force to the door through the outer roller within the slot to rotate the C-shaped bracket and the door.

REFERENCES:
patent: 923400 (1909-06-01), Ahlvin
patent: 1056171 (1913-03-01), Henry
patent: 2718026 (1955-09-01), Slopa et al.
patent: 2747238 (1956-05-01), Jones et al.
patent: 3160913 (1964-12-01), Carey

Affiliated with

Also associated with

Rating

Self-closing hinge and isolation door installation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-closing hinge and isolation door installation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-closing hinge and isolation door installation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1376487