Spring biased prop for a pivoted door member

Details Spring biased prop for a pivoted door member Spring biased prop for a pivoted door member

1982-05-12

1985-09-10

Silverberg, Fred A.

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

Closers

Spring

16366, 16386, E05F 114

Patent

active

045397260

ABSTRACT:
A spring actuated door opening and closing assist device is disclosed which comprises first and second tubular members positioned in telescoping relationship. Each of the tubular members has a hole formed therein in a direction transverse to the centerline of the telescoping members for receiving a shaft of a support bracket for door closing apparatus. A coil spring is located within the telescoping tubular members and extends between the respective holes in the members. The holes are bounded by internally flared portions of the surrounding tubular member which provide bearing surfaces for the shafts of the support brackets and provide abutments for the ends of the coil spring whereby the operation of the device is relatively smooth and quiet and yet the device can be relatively inexpensively manufactured.

REFERENCES:
patent: 1189963 (1916-07-01), Jones
patent: 1628826 (1927-05-01), Covalence
patent: 3891111 (1975-06-01), Snazuk
patent: 4034438 (1977-07-01), Csokary et al.
patent: 4069547 (1978-01-01), Guionie et al.

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