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. 04, 1977
Filed:
Dec. 22, 1976
Yasuhiro Kobayashi, Nyuzen, JA;
Yoshida Kogyo K.K., , JA;
Abstract
A pull tab attachment tool comprises a pair of first and second levers connected together for pivotal movement and having respectively first and second handle portions and opposed jaw portions extending from their one ends. The second lever has a roller. A third lever is pivotally connected to the first lever. An urging means acts between the first and third levers to normally urge them apart so that the third lever is held in rolling engagement with the roller. When the first and second handle portions are manually actuated to move toward each other, the opposed jaw portions are brought into engagement with each other to provide a first pressing structure, and one end of the third lever is brought into engagement with the one end of the first lever through the rolling action of the roller along the third lever to provide a second pressing structure.