Piston door stop

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Closure checks – Spring

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

16 86A, E05F 506

Patent

active

057617660

ABSTRACT:
A piston door stop comprising a hollow first shaft, a hollow second shaft which partially contains said first shaft, a spring, a base screw, and a rubber cap. The spring extends through the bore of both shafts. The first shaft, second shaft, spring, and the rubber cap are coaxial. The door stopper is screwed into a wall via the base screw such that a bottom surface of a head of the base screw is in contact with the surface of said wall. A swung door first hits the rubber cap which covers the second shaft. The force is then transmitted to the spring which is contained within the two shafts, such that the second shaft moves along the first shaft towards the wall, compressing the spring which is contained within both shafts; thus causing the spring to absorb all of the energy transmitted from the swung door.

REFERENCES:
patent: 2140002 (1938-12-01), Dion
patent: 2479597 (1949-08-01), Anton
patent: 2540630 (1951-02-01), Munro
patent: 3160912 (1964-12-01), Heyer
patent: 4159837 (1979-07-01), Morita
patent: 4686740 (1987-08-01), Ishii

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

Piston door stop does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-2188304

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