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. 21, 1979
Filed:
Dec. 19, 1977
Kazo Higashi, Kobe, JP;
Kiyohiko Sawa, Kobe, JP;
Kobe Steel, Ltd., Kobe, JP;
Abstract
A crusher including a series of cutter units mounted on a pair of shafts arranged parallel to each other so as to rotate in the opposite directions to each other, wherein each of the cutter units is provided with a holder member which includes a flange portion and a boss portion, and a disc-shaped cutter blade secured detachably to the holder member and divided circumferentially into several segments, the cutter units on the respective shafts being so arranged that the disc-shaped cutter blades of every paired cutter units contact each other partly at their sides and that the disc-shaped cutter blade and flange portion of a cutter unit on one shaft are opposed to the boss portion of the mating cutter unit on the other shaft such that a space is formed between the peripheries of both cutter units; and each flange portion is provided with pawls along its outer periphery while each boss portion has provided along its periphery alternate ridges and recesses so designed as to maintain a substantially constant spacing between the outer periphery of the boss portion and the opposing periphery of the flange portion of the mating cutter unit during rotation of the cutter units.