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:
Sep. 12, 1978
Filed:
Aug. 11, 1977
Applicant:
Inventor:
Takao Sakanaka, Hitachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B / ; B21B / ;
U.S. Cl.
CPC ...
72236 ; 72238 ;
Abstract
Coupling for piping for a roll chock in a rolling mill, which allows quick exchange of rolls and automatic coupling of piping in the roll chock for supplying lubricating oil. In this rolling mill, male and female tubular couplings are secured to a roll chock, and to a mill housing, respectively, so that the male and female tubular couplings may be engaged with or disengaged from each other only by displacing the roll assembly in its axial direction.