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:
Jan. 28, 1986
Filed:
May. 29, 1984
Earl R Johnson, Tulsa, OK (US);
Loffland Brothers Company, Tulsa, OK (US);
Abstract
A multiple biscuit clutch or brake apparatus comprising an annular disc operably secured to a rotatable shaft and having a plurality of circumferentially spaced bores provided therein, a pair of complementary pistons slidably disposed in each bore in back-to-back relation and responsive to the application and withdrawal of pressure therebetween for reciprocation within the bore, an annular flange disposed on each side of the disc and outboard of the pistons for frictional engagement thereby upon axially outward movement of the pistons within the respective bores, the frictional engagement between the pistons and the flanges providing either a braking or clutching operation, and a housing encasing the disc and flanges to provide a chamber therearound, the housing being provided with inlet and outlet ports whereby a coolant may be introduced into the chamber and circulated around the disc and pistons and flanges for dissipating the heat generated by the frictional engagement of the pistons and flanges, the coolant being discharged from the chamber through the outlet ports for either recirculation in the system or discarded, as desired.