Carl Everett Perry

US Patent:

7219752, May 22, 2007

Filed:

Nov 8, 2004

Appl. No.:

10/983486

Inventors:

Mark Ellsworth Wassell - Kingwood TX, US
William Evans Turner - Durham CT, US
Daniel E. Burgess - Middletown CT, US
Carl Allison Perry - Middletown CT, US

International Classification:

E21B 41/00

US Classification:

175321, 175 57, 175 61, 175 40, 166 665, 166 666, 1882671, 267125, 267137

Abstract:

A system for damping vibration in a drill string can include a valve assembly having a supply of a fluid, a first member, and a second member capable of moving in relation to first member in response to vibration of the drill bit. The first and second members define a first and a second chamber for holding the fluid. Fluid can flow between the first and second chambers in response to the movement of the second member in relation to the first member. The valve assembly can also include a coil or a valve for varying a resistance of the fluid to flow between the first and second chambers.

US Patent:

7377339, May 27, 2008

Filed:

Apr 19, 2007

Appl. No.:

11/737400

Inventors:

Mark Ellsworth Wassell - Kingwood TX, US
William Evans Turner - Durham CT, US
Daniel E. Burgess - Middletown CT, US
Carl Allison Perry - Middletown CT, US

Assignee:

APS Technology, Inc. - Wallingford CT

International Classification:

E21B 17/04
E21B 17/00

US Classification:

175322, 175321, 175323, 175106, 464 15

Abstract:

A system for damping vibration in a drill string can include a valve assembly having a supply of a fluid, a first member, and a second member capable of moving in relation to first member in response to vibration of the drill bit. The first and second members define a first and a second chamber for holding the fluid. Fluid can flow between the first and second chambers in response to the movement of the second member in relation to the first member. The valve assembly can also include a coil or a valve for varying a resistance of the fluid to flow between the first and second chambers.

US Patent:

7997357, Aug 16, 2011

Filed:

Apr 24, 2008

Appl. No.:

12/109328

Inventors:

Mark Ellsworth Wassell - Kingwood TX, US
William Evans Turner - Durham CT, US
Daniel E. Burgess - Middletown CT, US
Carl Allison Perry - Middletown CT, US

Assignee:

APS Technology, Inc. - Wallingford CT

International Classification:

E21B 28/00

US Classification:

175322, 267125

Abstract:

A system for damping vibration in a drill string can include a valve assembly having a supply of a fluid, a first member, and a second member capable of moving in relation to first member in response to vibration of the drill bit. The first and second members define a first and a second chamber for holding the fluid. Fluid can flow between the first and second chambers in response to the movement of the second member in relation to the first member. The valve assembly can also include a coil or a valve for varying a resistance of the fluid to flow between the first and second chambers.

US Patent:

8397562, Mar 19, 2013

Filed:

Jul 30, 2009

Appl. No.:

12/512740

Inventors:

Mark Ellsworth Wassell - Houston TX, US
Martin E. Cobern - Cheshire CT, US
Carl Allison Perry - Middletown CT, US

Assignee:

APS Technology, Inc. - Wallingford CT

International Classification:

E21B 44/00

US Classification:

7315248

Abstract:

An apparatus for measuring the bending on a drill bit operating down hole in a well may comprise at least three pockets circumferentially spaced equidistantly around the drill collar of the drill string to which the drill bit is attached. Four strain gauges are equidistantly circumferentially spaced around each of the pockets so as to form first and second sets of strain gauges. The strain gauges in the first set are connected into one Wheatstone bridge while the gauges in the second set are connected in a second bridge. Each of the strain gauges that are oriented similarly within each of the pockets are connected in series within a single leg of a bridge so that the output voltage of the bridge is unaffected by bending in the drill string. The output of first bridge is used to determine the bending on the drill bit. Further, an apparatus for measuring the bending, weight, and torque on a drill bit operating down hole in a well may comprise at least three pockets circumferentially spaced equidistantly around the drill collar of the drill string to which the drill bit is attached with twelve strain gauges that are equidistantly circumferentially spaced around each of the pockets so as to form first and second sets of strain gauges.

US Patent:

20130239674, Sep 19, 2013

Filed:

Feb 26, 2013

Appl. No.:

13/776705

Inventors:

MARK ELLSWORTH WASSELL - Houston TX, US
MARTIN E. COBERN - Cheshire CT, US
CARL ALLISON PERRY - Middletown CT, US

International Classification:

G01V 11/00

US Classification:

7315248

Abstract:

An apparatus for measuring the bending on a drill bit operating down hole in a well may comprise at least three pockets circumferentially spaced equidistantly around the drill collar of the drill string to which the drill bit is attached. Four strain gauges are equidistantly circumferentially spaced around each of the pockets so as to form first and second sets of strain gauges. The strain gauges in the first set are connected into one Wheatstone bridge while the gauges in the second set are connected in a second bridge. Each of the strain gauges that are oriented similarly within each of the pockets are connected in series within a single leg of a bridge so that the output voltage of the bridge is unaffected by bending in the drill string. The output of first bridge is used to determine the bending on the drill bit. Further, an apparatus for measuring the bending, weight, and torque on a drill bit operating down hole in a well may comprise at least three pockets circumferentially spaced equidistantly around the drill collar of the drill string to which the drill bit is attached with twelve strain gauges that are equidistantly circumferentially spaced around each of the pockets so as to form first and second sets of strain gauges. The arrangement of the twelve strain gauges allow for a bending on bit measurement that cancels out the affects of the weight on bit and torque on bit.

US Patent:

53039270, Apr 19, 1994

Filed:

Oct 23, 1992

Appl. No.:

7/966000

Inventors:

Carl L. Perry - Lighthouse Point FL
L. Gregory Johnson - Ft. Lauderdale FL

International Classification:

A63B 6936

US Classification:

273188R

Abstract:

A golf training device for a golf player including a hip belt having opposite belt ends, belt closing elements on the belt for holding the belt ends in joined position on the player, an elastic cord having an upper end and a lower end, an elastic cord attachment point on the belt disposed substantially opposite the joined position, and a stirrup attached to the lower end of the elastic cord for receiving a foot of the golf player. The length of the elastic cord is such that the stretched cord extends from the stirrup receiving the player's foot laterally and upwardly over the front and to the rear of the player to its attachment point on the belt thereby creating a rotational torque at the hips of the player which assists the player in maintaining a proper body stance throughout the swing with a club and properly turning the hips as required for a proper swing.