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:
Oct. 01, 1985
Filed:
Feb. 18, 1983
Yasumitsu Moriki, Tokyo, JP;
Tadashi Sato, Sagamihara, JP;
Kazuyoshi Yamamoto, Ibaraki, JP;
Izumi Takahashi, Hasuta, JP;
Maruma Jyusharyo Kabushiki Kaisha, Tokyo, JP;
Abstract
This seal check apparatus is mounted on a track press and checks the airtightness of a track joint immediately after the completion of assembly of a track chain using the track press. The apparatus comprises a base assembly mounted on the track press; a vacuum head which is engageable with and disengageable from the track joint on the track press; a member provided with freedom of displacement on the base assembly and supporting the vacuum head with freedom of displacement; a first actuating member provided on the base assembly and displacing the vacuum head supporting member; a second actuating member provided on the vacuum head supporting member and displacing the vacuum head; a gas system for sucking gases from the vacuum head when the latter engages the track joint; and a control member for controlling the operations of both actuating members and the gas system.