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:
Jun. 26, 1984
Filed:
Nov. 02, 1982
Ottmar Bacharach, Kaiserslautern, DE;
Gebr. Pfeiffer AG, Kaiserslautern, DE;
Abstract
A seal arrangement is provided for the pull rods extending out of a rolling mill housing through a housing passageway where a spring suspension is located at the ends of the pull rods exteriorly of the housing. In such an arrangement pull rods experience motion in the axial and radial directions. In affording a satisfactory seal, the pull rods extend through a sleeve as they pass from the interior of the housing into the housing passageway. A first ball-and-socket joint is located within the sleeve closely enclosing the pull rod. A second ball-and-socket joint is located around the exterior of the sleeve within the housing passageway. In pressure mills, a sealing air connection may be provided for the housing passageway and a further seal provided by a bellows located on the exterior of the housing extending between the pull rod and the outlet from the housing passageway.