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:
Sep. 27, 1977
Filed:
Sep. 03, 1976
Otto E Prenn, Sherwood Park, CA;
The Steel Company of Canada, Limited, Hamilton, CA;
Abstract
This invention provides a sucker rod scraper having two main portions. An inner portion is constituted by a plastic body member affixed to and surrounding the sucker rod, the body member including an elongated cylindrical portion with a plurality of longitudinal fins extending radially outwardly therefrom and spaced angularly therearound. The second part is a plastic ring member adapted to encircle the central body adjacent the fins, the ring member having an inner diameter greater than the outer diameter of the adjacent part of the inner portion, whereby to allow a passageway for fluid or liquid to flow past the sucker rod scraper. Means are provided for retaining the ring member adjacent the fins, this being constituted in the preferred embodiment by the provision of inward recesses along the outer edges of each fin, with the ring member being dimensioned so as to permit it to register within the recesses, whereby the ring can rotate in position but cannot move longitudinally.