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. 10, 2014
Filed:
Apr. 27, 2009
Tsuyoshi Yonezawa, Kiyosu, JP;
Tsuyoshi Yonezawa, Kiyosu, JP;
Howa Machinery, Ltd., Kiyosu, JP;
Abstract
In a rodless cylinder, a band accommodating depressionhaving a transverse inner surfaceextending along the width of a slitof an inner holeof a tubeand a wall surfaceinclined with respect to the transverse inner surfaceis formed on each side of the inner opening of the slit. In the case where one of the edges of the inner seal bandcomes into contact with one of the wall surfaces, the other edge of the inner seal bandcomes into contact with the other one of the transverse inner surfaces, while at the same time securing a distance I between the inner seal bandand an inner openingof the slit. Once a fluid is introduced into the tube, the inner seal bandcan be bent toward the slitdue to the distance I even in the case where one of the edges of the inner seal bandcomes into contact with the transverse inner surfaceand the other edge comes into contact with the wall surface. As a result, a rodless cylinder is provided in which by forming transverse walls and preventing the seal band from being displaced by more than a predetermined amount, the slit is accurately sealed and the moving unit can be positively moved.