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:
May. 19, 1981
Filed:
May. 11, 1978
Halsey W Cory, Fairfield, OH (US);
Force Control Industries, Inc., Hamilton, OH (US);
Abstract
A rotary centrifuge basket or container is suspended from a center drive shaft depending from a part-spherical bearing assembly mounted on a frame whereby the rotating container may also gyrate about the center point of the bearing. An oil shear clutch-brake unit includes a housing mounted on the frame and has a vertical output shaft formed as an extension of the container drive shaft. An aligned vertical input shaft is rotatably supported by the housing and projects upwardly to connect with the vertical drive shaft of an electric motor supported by the housing. A clutch includes a series of annular clutch plates which rotate with the input shaft and interfit between a series of annular clutch discs which rotate with the output shaft. A brake includes a series of brake discs which also rotate with the output shaft and interfit between a series of brake plates connected to the housing. The gyratory center point of the suspended container is located within the center of the clutch plates, and cooling oil is supplied to the center of the clutch plates through an axial passage formed within the output shaft. Cooling oil is independently supplied to the center of the brake plates through an annular chamber surrounding the output shaft, and the clutch and brake are selectively operated by axial movement of a nonrotating concentric piston actuated by fluid supplied through passages formed within the base of the housing.