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. 02, 2007
Filed:
Aug. 03, 2004
Takao Taniguchi, Anjo, JP;
Shigeharu Ikeda, Anjo, JP;
Minoru Hidaka, Anjo, JP;
Tomoyoshi Sato, Anjo, JP;
Hiroshi Osada, Anjo, JP;
Takao Kobayashi, Anjo, JP;
Hironao Kinpara, Anjo, JP;
Shigeto Noma, Anjo, JP;
Kazutaka Murai, Anjo, JP;
Masato Sakakibara, Anjo, JP;
Takao Taniguchi, Anjo, JP;
Shigeharu Ikeda, Anjo, JP;
Minoru Hidaka, Anjo, JP;
Tomoyoshi Sato, Anjo, JP;
Hiroshi Osada, Anjo, JP;
Takao Kobayashi, Anjo, JP;
Hironao Kinpara, Anjo, JP;
Shigeto Noma, Anjo, JP;
Kazutaka Murai, Anjo, JP;
Masato Sakakibara, Anjo, JP;
Aisin AW Co., Ltd., , JP;
Abstract
Machining coolant/lubricant is used to operate a piston of a clamping-side coupler by feeding same via a coolant feed passage to a clamping pressure chamber through a first check valve and a clamping pressure fluid passage. The same coolant/lubricant is discharged from an unclamping pressure chamber through an unclamping pressure fluid passage and a second check valve. The resulting movement of the piston downwards brings a clamp member into contact with a workpiece to thereby clamp the workpiece on a table. Thus, a dedicated pressure source for clamping can be dispensed with.