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:
Aug. 19, 1986
Filed:
Dec. 23, 1985
Donald G McCracken, Horton, MI (US);
Aeroquip Corporation, Jackson, MI (US);
Abstract
An improved rotary joint structure for transmitting fluid into and removing condensate from a rotating device, including a stationary housing into which a rotatable sleeve extends. A siphon pipe is positioned concentrically within the rotatable sleeve. At the free end of the rotatable sleeve there is positioned a fixed combination seal and thrust bearing which carries the thrust load of the sleeve. A spherical surface on the fixed bearing engages a corresponding surface on a sleeve flange affixed to the rotatable sleeve to maintain the sleeve in position as it rotates. A second seal unit is provided on the sleeve at the opposite end of the housing, and a compression spring encircles the rotatable sleeve between the two seal units to urge them into engagement with their respective sealing surface. Both the combination seal and thrust bearing unit and the second seal unit can be replaced without removing and disassembling the joint.