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:
Jan. 14, 2020
Filed:
Mar. 08, 2017
Bronislav Walter, Edmonton, CA;
Scott Walter, Edmonton, CA;
Bronislav Walter, Edmonton, CA;
Scott Walter, Edmonton, CA;
Other;
Abstract
There is provided an expandable pipeline pig for a varying diameter pipeline having a pig body that carries two or more guides and one or more actuators. Each guide has a resilient body with a folding zone between an outer perimeter and a central area connected to the pig body, a series of support members spaced circumferentially about the resilient body within the folding zone, and a series of collapsing structures positioned between, and integrally formed with, adjacent support members. The actuators selectively release the guides from a reduced to an expanded mode. In the expanded mode the support members extend outward and the collapsing structures are expanded between the support members. In the reduced mode the support members are folded toward the pig body and the collapsing structures are collapsed to reduce a circumference of the resilient body outer perimeter. The support members are biased toward the expanded mode.