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:
Jul. 27, 1993
Filed:
Apr. 15, 1991
Applicant:
Inventor:
Roy E Johnson, Norwalk, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D / ; B65D / ;
U.S. Cl.
CPC ...
404 25 ; 215358 ;
Abstract
A pick hole plug for sealing an opening in a manhole cover and the process for using such plug. The plug is formed from a soft uncured rubber polymer which has a larger diameter than the hole which it is to seal. The plug is compressed by hand and inserted into the pick hole. The plug deforms to conform to the shape of the sides of the pick hole and cures over a period of time as the heat and sunlight contact it.