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. 18, 1994
Filed:
Jan. 13, 1994
James L Houston, Tulsa, OK (US);
Other;
Abstract
Live loading is applied on each end of both the secondary and the primary packing of a packing gland. After installing the primary packing assembly and a lantern ring, the primary packing is compressed to proper specifications. While the primary gland is so compressed, it is locked into place using lantern ring lock bolts. The secondary packing assembly and a follower are then installed. The secondary gland is also compressed to proper specifications and the follower secured in place. The lantern ring lock bolts are then removed, both internally and externally live loading the packing gland. A single assembly of the present live loaded packing can also be installed in the gland from the process side, eliminating the need for purging and resulting in a most efficient purgeless gland.