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:
Dec. 10, 1985
Filed:
Jun. 15, 1984
James V Hanks, Robbinsdale, MN (US);
Leonid Dayen, Plymouth, MN (US);
Horton Manufacturing Co., Inc., Minneapolis, MN (US);
Abstract
A dual-rotary union, rotational isolation adapter according to the teachings of the present invention is disclosed bridging between a rotary union in fluid communication with a source of fluid pressure and a rotation control apparatus portion rotatable with respect to a shaft. In the present invention, an adapter body is rotatably and removeably secured to the end of the shaft. In its most preferred form, the adapter body is rotatably mounted by a pin threadably received in the end of the shaft and rotatably mounted by a bearing received within a first cavity formed in the adapter body. In its most preferred form, the rotary union is received within a second cavity formed in the adapter body opposite the first cavity. Thus, the adapter body is rotatable with respect to and rotatably isolated from the source of fluid pressure by the rotary union. Additionally, the adapter body is simultaneously rotatable with respect to and rotatably isolated from the shaft by the bearing rotatably mounting the shaft securement pin. Fluid communication can then be provided between the rotational control apparatus portion and the rotary union for activating the rotational control apparatus portion. Thus, the body portion rotates with the rotational control apparatus portion and is rotatably independent from the shaft and the source of fluid pressure.