Rotatable knob assembly

Details Rotatable knob assembly Rotatable knob assembly

1976-11-08

1978-04-11

Scott, Samuel

Machine element or mechanism

Control lever and linkage systems

Elements

74553, 16121, 16DIG30, 292347, G05G 100, B25G 100, E05B 100, E05B 700

Patent

active

040832643

ABSTRACT:
A rotatable knob assembly having a knob easily mounted to the mounting section of an operating member, with the mounting section having two adjacent parts with a first part having a generally elliptical cross section and the other part having a generally circular cross section and with the knob having an open-ended cavity and an upstanding ridge on the inner surface of the cavity surrounding the wall which is of generally the same perimetrical length as the generally equal perimetrical lengths of the two parts of the mounting section. The knob is formed of a material which is capable of being distorted whereby placement of the knob on the mounting section by relative insertion of the mounting section into the cavity causes distortion of the locking ring to pass over the generally elliptical cross section part and the locking ring then returns to its normal shape to engage against the generally circular part of the mounting section and to lock behind the elliptical section.

REFERENCES:
patent: 245542 (1881-08-01), Moran
patent: 1388922 (1921-08-01), Bullard
patent: 1759771 (1930-05-01), Willi
patent: 2290815 (1942-07-01), Ruppel
patent: 2496700 (1950-02-01), Cole
patent: 3229322 (1966-01-01), Herr et al.
patent: 3306643 (1967-02-01), Reed

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