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. 17, 2003
Filed:
Aug. 09, 2001
Oomi Arisaka, Chigasaki, JP;
Piolax, Inc., Kanagawa, JP;
Abstract
A pull-in device for a string includes a tubular cylinder, a piston adapted to move inside the cylinder, an urging spring for elastically urging the piston inside the cylinder in the direction of one terminal part of the cylinder, and a string to be pulled in or pulled out with the movement of the piston. The device is characterized by a plurality of hooking parts, each capable of slidably hooking the string, that are formed on the piston as mutually opposed across the center of the piston, a hooking part capable of slidably hooking the string that is formed on a cap adapted to close the other terminal opening part of the cylinder, one terminal part of the string pulled out of the cylinder, intervening points of the whole length of the string hooked serially on the hooking parts and as folded back, and the other terminal part of the string fixed on the cylinder or piston.