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:
Apr. 17, 2007
Filed:
May. 16, 2005
Hiroaki Kitamoto, Kanazawa, JP;
Katsuji Tsuruyama, Kanazawa, JP;
Toshiharu Kanaiwa, Kanazawa, JP;
Shibuya Kogyo Co., Ltd., Kanazawa-shi, JP;
Abstract
A metal capis fitted over a vessel (vial), into which a rubber plugis driven, and using a pressure block, a load is applied to the capthrough the top surfacethereof to maintain the rubber plugcompressed. Under this condition, a tightening rollerfolds a skirt (lower endof a cylindrical portion) of the capinwardly to perform a tightening operation. Subsequently, the load applied to the top surfaceof the cap is once released, and then a load is applied again starting from a value FB which is less than the load FA applied during the tightening operation, gradually increasing to a higher value. In the course of increasing the load, a load FC at the instant when a displacement in the elevation of the top surface of the cap is detected, and this load FC is determined to be a seal load upon completion of the tightening operation. By detecting the load FC upon completion of the tightening operation, a seal capacity of the rubber plugcan be confirmed.