DAVID E ROSS
Electrician at Auburn Dr, Katy, TX
License number
Texas 115802
Expiration Date
Feb 9, 2018
Category
Journeyman Electrician
Address
Address
2206 Auburn Dr, Katy, TX 77493
Phone
(832) 407-4387
Professional information
Cable Hanger For Use In A Cable Guided Fishing Assembly
US Patent:
7431077, Oct 7, 2008
Filed:
Sep 1, 2005
Appl. No.:
11/217778
Inventors:
Gregg A. Bosley - Houston TX, US
Donald L. Leach - Pearland TX, US
David P. Ross - Katy TX, US
C. Steven Isaacks - Cypress TX, US
Donald L. Leach - Pearland TX, US
David P. Ross - Katy TX, US
C. Steven Isaacks - Cypress TX, US
Assignee:
National - Oilwell DHT, L.P. - Houston TX
International Classification:
F16G 11/02
US Classification:
166 851, 24132 R
Abstract:
A cable hanger for use in a cable-guided fishing operation is disclosed. The disclosed invention provides a cable hanger in which a specially-shaped hanger body is connected to a handle having a cable groove running through it. The cable groove allows for the centerline of a cable to run through the centerline of the handle, thereby allowing for a straight-line pull to be exerted on the cable through the cable hanger. The specially-shaped hanger body is operatively connected to a specially-shaped body cover by a plurality of links. In this way, the hanger body and cover form a “clamshell” arrangement in which the cover can rotate from an open position to a closed position around the cable. When in the closed position, the cover and body are bolted together along the side of the cover and body opposite the links. The hanger body and cover are designed such that the cable rests closer to the links rather than in the center of the hanger body such that the moment arm between the bolts and the cable is increased, thereby increasing the amount of clamping force that can be provided by the bolts.
Spear Head Overshot For Use In A Cable Guided Fishing Assembly
US Patent:
7427091, Sep 23, 2008
Filed:
Sep 1, 2005
Appl. No.:
11/218144
Inventors:
Gregg A. Bosley - Houston TX, US
David P. Ross - Katy TX, US
C. Steven Isaacks - Cypress TX, US
David P. Ross - Katy TX, US
C. Steven Isaacks - Cypress TX, US
Assignee:
National-Oilwell, DHT, L.P. - Houston TX
International Classification:
E21B 31/18
US Classification:
294 8627, 294 8629, 294 8633, 294 8617
Abstract:
Disclosed is an improved spear head overshot. The spear head overshot is particularly useful as part of a cable-guided fishing assembly. The spear head overshot essentially comprises one or more pivot lugs, the pivot lugs comprising jaw sections and release point sections, an actuator slide, a wave spring, a pivot mandrel, a screw attached to the pivot mandrel, and a compression spring threaded over the screw. In operation, a spear head is inserted into the spear head overshot until the spear head passes the jaw sections of the pivot lugs, at which time the spear head is locked into place. To release the spear head, the release point sections of the pivot lugs are manually forced inward. Simultaneously, the jaw sections of the pivot lugs are forced outward, thereby allowing the spear head to be removed from the spear head overshot. In a cable-guided fishing operation, this process can be repeated as often as necessary.
Cryoprotective Solutions Comprising Dmso, Pg, 2,3-Butanediol,Raffinose And Pvp
US Patent:
6194136, Feb 27, 2001
Filed:
Jul 13, 1998
Appl. No.:
9/114433
Inventors:
Stephen A. Livesey - Conroe TX
Anthony A. del Campo - Houston TX
Abhijit Nag - The Woodlands TX
Ken B. Nichols - The Woodlands TX
Carmen Piunno - Houston TX
David P. Ross - Katy TX
Anthony A. del Campo - Houston TX
Abhijit Nag - The Woodlands TX
Ken B. Nichols - The Woodlands TX
Carmen Piunno - Houston TX
David P. Ross - Katy TX
Assignee:
LifeCell Corporation - Branchburg NJ
International Classification:
A01N 102
US Classification:
435 13
Abstract:
This invention relates to methods, apparatus and solutions for cryopreserving microscopic biological materials for biologically extended periods of time. The method comprises treating a suspension of biological material, in an appropriate buffer, with a cryoprotectant or combination of cryoprotectants which raises the glass transition temperature range of the sample. One or more dry protectants may be added to the cryosolution. The cryosolution is then nebulized and rapidly cooled with novel apparatus, dried by molecular distillation, stored and then rehydrated in a buffer prior to its use. The solutions comprise novel mixtures of cryoprotectants.
Bearing Assembly For Swivel Joint
US Patent:
7665927, Feb 23, 2010
Filed:
Sep 1, 2005
Appl. No.:
11/218258
Inventors:
Gregg A. Bosley - Houston TX, US
Aditya V. Soman - Houston TX, US
David P. Ross - Katy TX, US
Aditya V. Soman - Houston TX, US
David P. Ross - Katy TX, US
Assignee:
National-Oilwell DHT, L.P. - Houston TX
International Classification:
F16C 11/00
US Classification:
403135, 403 78, 166301, 294 861, 29898043, 384499, 384502
Abstract:
The present invention is an improved swivel joint for use as part of a cable-guided fishing assembly. The swivel joint contains a bearing assembly comprising a series of ball bearings partially encased by an inner and outer race. During a cable-guided fishing operation, the inner and outer race exert a shearing, rather than compression, force on the ball bearing due to the unique configuration of the bearing assembly. This unique configuration increases the strength of the bearing assembly, and the corresponding strength of the swivel joint, without necessitating an increase in the outer diameter of the swivel joint.