Clarence James Hickman
Engineers at Concord Dr, Fort Collins, CO

License number
Colorado 1411
Issued Date
Aug 19, 1950
Renew Date
Aug 1, 1997
Expiration Date
Aug 1, 1997
Type
Professional Engineer
Address
Address
1761 Concord Dr, Fort Collins, CO 80526

Professional information

Clarence Hickman Photo 1

Insulated Switch Arrangement For Electric Motor

US Patent:
4229634, Oct 21, 1980
Filed:
Feb 21, 1978
Appl. No.:
5/879498
Inventors:
Clarence J. Hickman - Fort Collins CO
Donald W. Ruehmann - Fort Collins CO
Christopher W. Elkins - Fort Collins CO
Assignee:
Teledyne Industries, Inc. - Fort Collins CO
International Classification:
H01H 904
US Classification:
200302
Abstract:
A hygienic device has a pump for propelling liquid in a flow of pulses, a motor for driving the pump, a switch for supplying power to the motor and means for delivering the propelled liquid to a point of use. A control enables adjustment of the pressure of the delivered liquid. The switch is formed as part of the motor winding assembly and therewith is effectively encapsulated. The pump includes a piston in one end of which is a recess defining a resilient spherical seat and which cooperates with a spherical bearing formed on one end of a piston rod. The control has a valved bypass arrangement wherein various stops and abutments cooperate to permit accurate determination of high and low pressure adjustment during assembly. A rotor within the motor has a cylindrical bore with longitudinal lugs that interfit with ribs on a bearing member that is pressed into the bore. Other features, such as a tilt-out nozzle storage shelf, are included.