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:
Oct. 12, 2021
Filed:
Mar. 11, 2020
Applicant:
Ducon—becker Service Technology, Llc., Ventura, CA (US);
Inventor:
Billy G. Becker, Ventura, CA (US);
Assignee:
DUCON—BECKER SERVICE TECHNOLOGY, Ventura, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 23/10 (2006.01); E21B 37/10 (2006.01); E21B 34/06 (2006.01);
U.S. Cl.
CPC ...
E21B 23/10 (2013.01); E21B 34/06 (2013.01); E21B 37/10 (2013.01);
Abstract
An assist device for propelling a tool through a conduit, the assist device including an upstream housing having a first port; a downstream housing movably attached to the upstream housing and the downstream housing having a second port; and a swab element attached to the downstream housing. The first port is closed when there is no gap between the upstream housing and the downstream housing, and the first port is open when there is a gap between the upstream housing and the downstream housing.