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. 15, 1982
Filed:
May. 16, 1980
Masami Onishi, Tokyo, JP;
Taiyo Shokai Co., Ltd., , JP;
Abstract
This invention provides an apparatus for transferring a strip-like plastic bag material in a packing machine. The apparatus comprises a pair of intermittently operated pinching rollers for intermittently transferring the bag material, said bag material comprising a series of interconnected bags each having a heat-sealed bottom portion with a flap-like margin, a mechanism for raising said flap-like margin during transfer of said bag material, a microswitch for detecting said bottom portion, said microswitch having an elongated contact adapted to be releasably engaged with said flap-like margin as said flap-like margin is raised during transfer of said bag material and means for stopping said bag material in response to detection by said microswitch of said bottom portion.