Floor mounted doorstop having adjustable rigidity

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

Patent

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292DIG15, 292DIG19, E05F 506

Patent

active

057993670

ABSTRACT:
A floor mounted doorstop employing an inner spacer having a first end and a second end, the first end disposed over the floor surface, an outer spacer having a first end and a second end, the first end disposed over the floor surface, and the outer spacer disposed around the inner spacer, a first rigid washer disposed over the second ends of said inner and outer spacers, a disk of a first height formed of a compressible material and having a first aperture formed therein disposed over the first rigid washer; a bushing of the first height disposed in the first aperture, a second rigid washer disposed over the disk, and fastening means for fastening the inner spacer, the outer spacer, the first rigid washer, the disk and the second rigid washer to the surface, the fastening means including means for compressing the outer spacer to a selected compression.

REFERENCES:
patent: 913748 (1909-03-01), Mefford
patent: 1128105 (1915-02-01), Cheston
patent: 1299416 (1919-04-01), Atwood
patent: 1533687 (1925-04-01), Beck et al.
patent: 1627825 (1927-05-01), Beck et al.
patent: 1657313 (1928-01-01), Mitchell
patent: 1858541 (1932-05-01), Duffy
patent: 2517966 (1950-08-01), Boye
patent: 2617140 (1952-11-01), Desy
patent: 2899703 (1959-08-01), Johnson
patent: 2988392 (1961-06-01), Kuo
patent: 3864785 (1975-02-01), Hoppock
patent: 4505502 (1985-03-01), Tomitz
patent: 5335396 (1994-08-01), Dolan
"Universal Floor Bumper", Baldwin Hardware Corp., Reading, PA.
"Model 2301" and Model 2302, Allgood-Modric Ltd., Alan Tye Designs, RDI, 297 Easton Rd., London NW1 3AQ, Figs. A-D.

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