The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 11, 1978
Filed:
Jul. 08, 1976
Abstract
Clutch control comprising a first three-way valve which is automatically operated by the accelerator to effect the clutch engaging operation of a clutch control pressure differential operated motor and a second three-way valve which is automatically operated, when the clutch plates contact at a predetermined load, to terminate a relatively fast clutch engaging movement of the clutch plates. The motor is also in part controlled by a bleed valve operative to control the loading of the clutch plates as the clutch plates are moved by a clutch spring into firmer engagement with each other. The bleed valve is operative to repeatedly close and open an air bleed port in response to a signal pulse. A pulse width modulator is provided to vary the pulse width of the signal pulse.