Jesse Lee Dunlap

US Patent:

39799670, Sep 14, 1976

Filed:

Jul 30, 1975

Appl. No.:

5/600468

Inventors:

Jesse Lee Dunlap - Fresno CA

Assignee:

California Traders - Fresno CA

International Classification:

G05G 112
G05G 502
G05G 912

US Classification:

74475

Abstract:

A shift control device adapted for installation on a conventional pneumatic transmission control switch for trucks to convert its lever action to an easily controllable twisting or turning action and one that prevents inadvertent "down-shifting. " The device includes a ball-like knob adapted for connection to the head of a standard pneumatic transmission control with a radially extending fork portion that fits over the lever for the control. The knob is rotatably supported on a central pin attached to the control head so that turning it will move the control level, its travel being limited so that downward force must be applied on the knob before the control lever can be moved to its low range position.