David J Otto

US Patent:

6719894, Apr 13, 2004

Filed:

Aug 8, 2001

Appl. No.:

09/925060

Inventors:

Tom Gus Gavrel - Seabrook TX
David W. Otto - Shiner TX
Ira B. Vinson - Kemah TX 77565

Assignee:

Ira B. Vinson - El Lago TX
Tom G. Gavrel - Seabrook TX

International Classification:

C02F 1463

US Classification:

205744, 205757, 204237, 204269, 204672, 204673

Abstract:

An electrocoagulation process for removing organic and metal contaminants from a pressurized waste fluid is disclosed in which a clarified waste fluid is produced when the pressure is released.

US Patent:

7087176, Aug 8, 2006

Filed:

Nov 11, 2003

Appl. No.:

10/706002

Inventors:

Tom Gus Gavrel - Seabrook TX, US
Ira B. Vinson - Lake Charles LA, US
David Wayne Otto - Shiner TX, US

International Classification:

C02F 1/463
C25B 9/00

US Classification:

210748, 210243, 210521, 204571, 204573, 204668, 205757

Abstract:

A method and apparatus for the high-pressure electrocoagulative treatment of aqueous and viscous fluids and sludge is provided. The apparatus includes a plate and frame design utilizing mechanical closure on a plurality of recessed, gasketed, non-electrically conductive electrocoagulation spacer plates that completely enclose and isolate all fluids, electrical contacts, and electrodes within the confines of the apparatus. The spacer plates include intergral supports that position and support said plates with enclosed electrodes on top of the side rails of the supporting frame of the apparatus allowing said plates to be separated for electrode replacement and maintenance and conversly closed, pressured and put into service. The apparatus includes a baffled influent and effluent chamber at both ends for the addition and flash mixing of chemical reagents and/or flocculants and to provide a means of fluid communication between fluid conduits and chambers formed within the apparatus.

US Patent:

51039923, Apr 14, 1992

Filed:

Sep 19, 1991

Appl. No.:

7/762650

Inventors:

Patrick L. Lippiello - Spring TX
David W. Otto - Whittier CA

Assignee:

HMT, Inc. - Houston TX

International Classification:

B65D 8842

US Classification:

220221

Abstract:

A shoe seal for sealing the space between a floating roof and the inner wall of an oil storage tank includes a plurality of scissors hanger assemblies for movably mounting a shoe on the floating roof. Each scissors hanger assembly includes an elongated plate suspended from a shoe clip bolted to the shoe and pivotally coupled to an opposite pair of elongated bars suspended from a rim clip bolted to the outer rim of the floating roof. In a first embodiment, the shoe is resiliently biased into contact with the inner tank wall by pusher bars bolted to the shoe and having resilient legs extending into contact with the floating roof, and pusher plates bolted to the roof and having a resilient leg extending into contact with the shoe. In a second embodiment, only the pusher bars are used and they are mounted on the rim clips bolted to the floating roof so that the opposite resilient legs thereof extend into contact with the shoe. A vapor barrier fabric extends between and is joined to the shoe and to the floating roof to complete the shoe seal.

US Patent:

53218817, Jun 21, 1994

Filed:

Sep 27, 1993

Appl. No.:

8/127128

Inventors:

Patrick L. Lippiello - Spring TX
David W. Otto - Whittier CA

Assignee:

HMT, Inc. - Houston TX

International Classification:

B23P 1102

US Classification:

295251

Abstract:

A shoe seal for sealing the space between a floating roof and the inner wall of an oil storage tank includes a plurality of scissors hanger assemblies for mounting a shoe on the floating roof. Each assembly includes an elongated plate suspended from a shoe clip bolted to the shoe and pivotally coupled to an opposite pair of elongated bars suspended from a rim clip bolted to the outer rim of the floating roof. In a first embodiment, the shoe is biased into contact with the inner tank wall by pusher bars bolted to the shoe and having resilient legs extending into contact with the floating roof, and pusher plates bolted to the roof and having a resilient leg extending into contact with the shoe. In a second embodiment, only the pusher bars are used and they are mounted on the rim clips bolted to the floating roof so that the opposite resilient legs thereof extend into contact with the shoe. A vapor barrier fabric extends between and is joined to the shoe and to the floating roof to complete the shoe seal.

Author:

David Otto

ISBN #:

0687083060

Author:

David Otto

ISBN #:

0687090202