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.

Date of Patent:
Oct. 02, 2001

Filed:

Nov. 20, 2000
Applicant:
Inventors:

Michael J. Forsyth, Stow, OH (US);

Charles A. Webster, Bowling Green, OH (US);

Douglas S. Martin, New Castle, PA (US);

James P. Black, Twinsburg, OH (US);

Bradford R. Seaman, Birdsboro, PA (US);

Assignee:

Weatherchem Corporation, Twinsburg, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D 5/004 ;
U.S. Cl.
CPC ...
B65D 5/004 ;
Abstract

Screw on caps for bottles that have an anti back off feature formed on a hinged tab of the cap engaging detent teeth below the threads on the bottle. The hinge has a unique configuration that enables the tab to snap into and hold a gripping position while avoiding temporary distortion or creep. The detent teeth are particularly suited for use with blow molded bottles and are capable of restraining a cap within a small angle of a fully tightened position to avoid any significant back off and potential leakage. In one embodiment, the anti back off feature is provided in a child resistant cap while in another embodiment this feature is provided in a simpler continuous thread cap.


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