Patents by Inventor Darrell D. Lackey

Darrell D. Lackey has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Friction-less hydraulic clutch device
    Patent number: 4564095
    Abstract: This clutch device is designed to be friction-less, and it employs hydraulic fluid for the engaging action upon a drive flange, without the use of friction linings. Primarily, it consists of an internal housing, return spring, piston and pushrod, which are moved by a cam rotated by the power source to cause a pumping action in the housing. Check valves are also included in the stationary housing, and apply and release control valves of the stationary housing open and close the fluid passages, for the clutch engaged, or released clutch condition.
    Type: Grant
    Filed: January 23, 1984
    Date of Patent: January 14, 1986
    Assignee: Febco Inc.
    Inventor: Darrell D. Lackey