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:
Mar. 08, 1988

Filed:

Aug. 14, 1986
Applicant:
Inventor:

Joseph J Bullock, III, Atherton, CA (US);

Assignee:

Bankers Trust Co., New York, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
215256 ; 215 31 ; 220270 ; 220276 ;
Abstract

Liquified and compressed gases are sold in cylinders having threaded necks which attach to lanterns, stoves, torches, etc., which use the gas as fuel. A tearable plastic cap fits over the neck and has an internal bead which snaps under a shoulder on the neck. Above the shoulder is a circumferential first score line and a second score line extends to the bottom of the cap. In proximity to the second score line is a pull tab. Before the tab is pulled, the cap prevents surreptitious dispensing of the gas, protects the threads and prevents contamination of the neck and of the valve inside the neck. To remove the cap, the tab is pulled, tearing the cap along the second and then the first score line, thereby removing the lower portion of the cap, including the bead. The upper portion of the cap may be used for reclosure.


Find Patent Forward Citations

Bullock, III, Joseph. (1988). Tamper-evident cover for threaded neck (U.S. Patent No. 4729488). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4729488

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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