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, 1982
Filed:
Nov. 04, 1980
Donald Firth, Los Angeles, CA (US);
Tosco Corporation, Los Angeles, CA (US);
Abstract
A hydrostatic retort seal for sealing to a seal disc on the rotating vessel portion of a rotating retort. An annular caliper assembly is mounted concentrically around the seal disc. The annular caliper assembly includes a body portion having two arms. Each arm on its interior surface includes an annular sealing channel which is filled with liquid under pressure to provide a liquid interface seal layer between the caliper assembly arms and the seal disc. The sealing channels are movable laterally relative each other and are biased inward so that the distance between the two channels or seal layers may be adjusted continually to accommodate nutations and other variations of the rotating seal disc. The caliper assembly is mounted to the stationary retort portions by way of gimbals to allow universal movement of the caliper as it responds to sealing disc nutations. To complete the retort seal, a flexible seal boot is provided between the caliper assembly and stationary retort portion. This provides a complete retort seal where the sealing disc is sealed to the annular caliper assembly by an interface sealing layer with the caliper assembly being in turn sealed to the stationary retort portion by the flexible boot.