Soundproof door

Details Soundproof door Soundproof door

1976-08-17

1978-02-14

Downey, Kenneth

Movable or removable closures

With means mounting closure for swinging

49303, 49396, 49488, E06B 716

Patent

active

040730930

ABSTRACT:
A swinging door carries at its bottom end a pair of parallel spaced rollers which extend substantially the full width of the door and which, when the door is closed, are spring energized into rolling engagement with the bottom transverse member of a doorframe or sill for soundproofing the bottom of the door. A pair of horizontally elongated rubber strips, suspended from the door, rest on the respective rollers in order to obstruct the passage of sound above the rollers.

REFERENCES:
patent: 559686 (1896-05-01), Denman
patent: 3320700 (1967-05-01), Bohn
patent: 3462899 (1969-08-01), Sherman

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