Non-rotating pinion cap

Details Non-rotating pinion cap Non-rotating pinion cap

1998-11-16

2000-04-11

Mah, Chuck Y.

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

Closers

Spring and gear

16 62, 16 69, 16 64, E05F 100

Patent

active

060474408

ABSTRACT:
A non-rotatable pinion cap for use on a non-handed door closer where both ends of the drive pinion extend beyond the cylinder body. The pinion cap has one exposed edge for engaging the door or door frame surface and includes a christmas tree plug for attaching the pinion cap to a threaded hole in one end of the drive pinion. The plug can either be free to rotate with the pinion or it can be fixed to the cap. The slippage of the plug permits the drive pinion to rotate while the pinion cap does not rotate.

REFERENCES:
patent: 611285 (1898-09-01), Scheid
patent: 2994906 (1961-08-01), Check
patent: 3546734 (1970-12-01), Pollack et al.
patent: 3852846 (1974-12-01), Slaybaugh

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