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:
May. 25, 1982
Filed:
Jul. 07, 1980
Applicant:
Inventor:
Duane M Gibson, Milwaukie, OR (US);
Assignee:
Omark Industries, Inc., Portland, OR (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73104 ; 7343 / ;
Abstract
A rectangular container for a saw chain is provided with a transparent plastic lid and a foraminous bottom. Freshly sawn wood chips are placed in the container after which a movable slide is located adjacent the level of the chips. After shaking of the container, a predetermined reduction in chip level as measured by the slide will indicate that the saw chain requires servicing.