Lisa K Mccarthy

US Patent:

20120326395, Dec 27, 2012

Filed:

Jun 21, 2011

Appl. No.:

13/134977

Inventors:

Lisa McCarthy - Virginia Beach VA, US

International Classification:

F16J 15/32
B23P 11/00

US Classification:

277551, 29428

Abstract:

An improved shaft seal includes a plurality of V-pack rings that each includes a bi-directional cut with cuts of unequal lengths. An upper cut extends from the top of the V-pack ring to the shoulder. A lower cut extends from the bottom of the V-pack to the shoulder and is longer in length than the upper cut.

US Patent:

20190277405, Sep 12, 2019

Filed:

Mar 7, 2018

Appl. No.:

15/914186

Inventors:

Lisa McCarthy - Virginia Beach VA, US

International Classification:

F16J 15/34

Abstract:

An improved packing tool and process includes a mobile packing gland having a first end with a large opening that accepts a ring of packing material. The packing gland tapers down from the first end to a second end which is arranged within a static gland that receives the packing material which comprises a seal. A ring of packing material is arranged within the mobile packing gland and is inserted into a static gland with a pusher. The pusher exerts uniform pressure about the ring of packing material to seat it within the static gland. Thereafter the pusher is withdrawn from the mobile packing gland and successive rings of packing material are stacked within the static gland by repeating the process.