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. 08, 1986
Filed:
Nov. 23, 1984
Kristen I Pedersen, Houston, TX (US);
Sofec, Inc., Houston, TX (US);
Abstract
A rotatable swivel adapted for assuring the passage of a scraper pig or a separator pig through a conveyance system of which and the swivel is a part is disclosed. The swivel includes a guide vane pivotally mounted in an inner ring of a swivel body to enable movement between a retracted position for assembling the inner ring with an outer ring and an operating position for insuring the passage of the pig from an inlet to an outlet communicating with a toroidally shaped conduit chamber of the rotatable swivel. A removable locking pin secures the guide vane in the operating position to assure the passage of the pig. A retracted position port and an operating position port are disposed in an outer ring of the swivel body to enable movement of the guide vane between the retracted and operating positions.