John O Harr

US Patent:

8601866, Dec 10, 2013

Filed:

Jan 29, 2010

Appl. No.:

12/696515

Inventors:

Carl R. Aeshliman - Rittman OH, US
Jon D. Shearer - Hartville OH, US
John A. Harr - Minerva OH, US

Assignee:

Goodrich Corporation - Charlotte NC

International Classification:

G01F 23/26

US Classification:

73304C

Abstract:

A sensing device () is provided for sensing whether an electrically-conductive fluid () has reached a predetermined level within a container (). In this device (), a first electrode () is electrically connected to a source () and a second electrode () is electrically connected to ground. When the electrode gap () is filled with the fluid (), the sensing circuitry causes the electrodes () to switch roles as the anode depending upon whether a positive voltage pulse or negative voltage pulse is being received from the source ().

US Patent:

20030164594, Sep 4, 2003

Filed:

Feb 20, 2003

Appl. No.:

10/370894

Inventors:

Mark Whitlow - Columbia SC, US
John Harr - Chapin SC, US
Ryan McCall - Lexington SC, US

International Classification:

H02G015/04

US Classification:

277/609000

Abstract:

The present invention relates to a seal comprising an annular sealing body comprising a radially outer peripheral groove, an upper load concentrating projection, a lower load concentrating projection, a compression relief region extending from the center of the load concentrating projections to the radially inner edge of the seal, and a compression relief region extending from the center of the load concentrating projections to the radially outer edge of the seal. Additionally, aspects of the present invention relate to a seal retainer comprising a thin metal sheet comprising a seal retaining aperture comprising a reception lobe and a retention lobe; wherein the reception lobe has a diameter larger than the outer diameter of the seal to be retained therein, and the seal retaining aperture has a diameter larger than the minimum diameter of the arch portion of the outer peripheral groove.

US Patent:

20050023768, Feb 3, 2005

Filed:

Jul 28, 2004

Appl. No.:

10/900913

Inventors:

Jeffrey Adams - West Columbia SC, US
Mark Whitlow - Columbia SC, US
Ryan McCall - Lexington SC, US
John Harr - Chapin SC, US
Blake Liles - Columbia SC, US

International Classification:

F02F011/00

US Classification:

277592000

Abstract:

A head gasket assembly is provided comprising a solid non-compressible or rigid gasket body comprising a plurality of apertures for engine coolant, oil and combustion chambers. The gasket body has grooves formed therein for retaining and controlling the compression of elastomeric seals used for sealing engine coolant and oil apertures. The gasket body is then fitted or accompanied by a combustion seal. The combustion seals are specifically designed for the particular engine application, based on temperature, pressure and other operating characteristics. This assembly allows a direct fit with standard engine technology and requires no machining of heads, blocks, or cylinder liners. The result is a gasket body that precisely controls the compression on the seals, which improves engine performance without any machining of the engine while carrying highly elastic compounds to seal coolant and oil.

US Patent:

20120061922, Mar 15, 2012

Filed:

Sep 8, 2011

Appl. No.:

13/227931

Inventors:

Mark S. Whitlow - Columbia SC, US
John S. Harr - Chapin SC, US
Jason Cunningham - Columbia SC, US
Kevin Lamb - Columbia SC, US
Jason Adams - Lexington SC, US

Assignee:

COLTEC INDUSTRIES, INC. - Charlotte NC

International Classification:

F16J 15/08
B23P 17/00

US Classification:

277644, 29428

Abstract:

An annular seal comprising a metallic ring having a cross section. The cross section includes an axially extending body portion having a radial width and an axial height. A spaced apart pair of sealing arms extend axially from the body portion, wherein each sealing arm includes a radially opposed arcuate sealing surface. The arcuate sealing surface may be convex, for example. The spaced apart pair of sealing arms are spaced apart a radial distance greater than the radial width of the body portion. A sealing system comprises a plurality of interconnected metallic rings wherein the body portion engages the sealing arms of an adjacent metallic ring.

US Patent:

20180094727, Apr 5, 2018

Filed:

Oct 19, 2017

Appl. No.:

15/787951

Inventors:

- Charlotte NC, US
John S. Harr - Chapin SC, US
Jason Cunningham - Columbia SC, US
Kevin Lamb - Columbia SC, US
Jason Adams - Lexington SC, US

International Classification:

F16J 15/08

Abstract:

An annular seal comprising a metallic ring having a cross section. The cross section includes an axially extending body portion having a radial width and an axial height. A spaced apart pair of sealing arms extend axially from the body portion, wherein each sealing arm includes a radially opposed arcuate sealing surface. The arcuate sealing surface may be convex, for example. The spaced apart pair of sealing arms are spaced apart a radial distance greater than the radial width of the body portion. A sealing system comprises a plurality of interconnected metallic rings wherein the body portion engages the sealing arms of an adjacent metallic ring.

US Patent:

20160215886, Jul 28, 2016

Filed:

Nov 24, 2015

Appl. No.:

14/951099

Inventors:

- CHARLOTTE NC, US
John S. Harr - Chapin SC, US
Jason Cunningham - Columbia SC, US
Kevin Lamb - Columbia SC, US
Jason Adams - Lexington SC, US

International Classification:

F16J 15/08

Abstract:

An annular seal comprising a metallic ring having a cross section. The cross section includes an axially extending body portion having a radial width and an axial height. A spaced apart pair of sealing arms extend axially from the body portion, wherein each sealing arm includes a radially opposed arcuate sealing surface. The arcuate sealing surface may be convex, for example. The spaced apart pair of sealing arms are spaced apart a radial distance greater than the radial width of the body portion. A sealing system comprises a plurality of interconnected metallic rings wherein the body portion engages the sealing arms of an adjacent metallic ring.

US Patent:

20150159755, Jun 11, 2015

Filed:

May 16, 2013

Appl. No.:

14/400496

Inventors:

- Charlotte NC, US
Jason Adams - Columbia SC, US
Kevin Lamb - Columbia SC, US
John Harr - Columbia SC, US
Kenneth Richards - Columbia SC, US
Caleb Garrison - Columbia SC, US

Assignee:

Technetics Group, LLC - Charlotte NC

International Classification:

F16J 15/08
F16L 23/20
F16J 15/10

Abstract:

A resilient metal seal that includes a PTFE jacket or liner capable of improving the sealing performance of the resilient metal seal and providing a near chemically inert surface to protect the seal from coming into contact with potentially damaging media is provided. In some embodiments, the resilient metal seal is an E-, U-, C-, or V-shaped resilient metal seal. A jacket made of PTFE or similar material can be included on the interior or exterior surface of the resilient metal seal. The jacket can include a locking feature to prevent against the jacket becoming dislodged from the resilient metal seal.