Flat shaft retainer

Details Flat shaft retainer Flat shaft retainer

2005-06-28

2005-06-28

Stodola, Daniel P. (Department: 3679)

Joints and connections

Including ancillary means blocking disconnection of joint

Blocker is catch or key

C403S315000, C403S326000, C403S329000, C403S374100, C074S502000, C074S503000, C024S607000, C024S614000

Reexamination Certificate

active

06910827

ABSTRACT:
A knob retainer system including a knob having a cavity and an opening into said cavity and a retainer adapted to fit within the knob cavity. The retainer includes wing portions and a cantilevered barbed portion. When the retainer is placed inside of the knob cavity and the actuating lever is manipulated between the retainer and an upper wall of the knob cavity, the actuating lever downwardly depresses the retainer thereby causing stakes located in the retainer to positively engage a portion of the cavity wall thereby preventing the retainer from moving with respect to the knob. The retainer is also fitted with a cantilevered portion which terminates in a barbed end. The barbed end positively engages an engagement surface on the actuating lever thereby preventing the actuating lever from pulling away from the knob/retainer assembly. The actuating lever is easily removed from the knob/retainer assembly by use of a specialized tool.

REFERENCES:
patent: 2154537 (1939-04-01), Stenberg
patent: 2718417 (1955-09-01), Hansen
patent: 3468568 (1969-09-01), Ulich
patent: 3709531 (1973-01-01), Beehler
patent: 6390925 (2002-05-01), Perrow

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