Thomas W Bein

US Patent:

7517191, Apr 14, 2009

Filed:

Oct 6, 2005

Appl. No.:

11/250705

Inventors:

Thomas Bein - Gambrills MD, US
Matthew Frank - Chadds Ford PA, US
William L. Tucker - Turnersville NJ, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

F03B 11/02

US Classification:

415201, 29266, 269 95, 269 96

Abstract:

An assembled pump compressor arrangement of an air-conditioning system having a housing enclosing an impeller with a thrust collar positioned thereon. The arrangement includes a tool for applying torque to the impeller having an outer cylindrical element and a plurality of arcuate sections. The arrangement further includes a releasable clamp for interconnecting the arcuate sections and the outer cylindrical element with the impeller clamped between the outer cylindrical element and the arcuate sections. A torque bar is provided which extends through the outer cylindrical element in a spaced relation to the impeller through which the torque is applied to effect disassembly of the high-speed thrust collar and removal of the impeller from the housing of the air-conditioning system.

US Patent:

20080141916, Jun 19, 2008

Filed:

Sep 22, 2006

Appl. No.:

11/534324

Inventors:

Thomas W. Bein - Gambrills MD, US

International Classification:

B63B 1/00

US Classification:

114 6132, 114244, 114253

Abstract:

A small watercraft with watertight hull and an area at the rear in close proximity to the waterline that provides a means to mount payloads. Engines powering propellers are installed forward of the payload area and are covered by a water-tight deck with openings for intake air. Ancillary systems to support the engines and electrical components are provided in a conventional manner. A feature of the present invention is that the hull has been modified to permit a tow cable to pass through the hull from a towing winch to a towed body. The present invention moves the reaction from the tow force forward of the craft transom and low in the hull which greatly improves the stability of the small vessel particularly when it is operating in rough water. The present invention is applicable to any size of the hull and any materials that the hull is fabricated from.

US Patent:

50824317, Jan 21, 1992

Filed:

Jul 3, 1986

Appl. No.:

6/885478

Inventors:

Thomas W. Bein - Annapolis MD

Assignee:

The United States of America as represented by the Secretary of the Navy - Bethesda MD

International Classification:

F04C 1820
F04C 2702

US Classification:

418 97

Abstract:

A scavenging system for single screw compressors to remove residual liquid eal from an open combustion chamber prior to controlled liquid seal injection. The removal of residual liquid seal is accomplished by providing at least one gaterotor as a scavenging means. Essentially the gaterotor will act as a scraper having a 1:1 compression ratio.

US Patent:

48803677, Nov 14, 1989

Filed:

Jun 9, 1988

Appl. No.:

7/204323

Inventors:

Thomas W. Bein - Annapolis MD

International Classification:

F04C 1820

US Classification:

418107

Abstract:

A single screw compressor for varying the pressure of a fluid characterized in that the alignment of the mainrotor and the gaterotor axes is maintained in the presence of distortion due to temperature and pressure gradients. The structural arrangement permits fabrication of a relatively light weight compressor.

US Patent:

52379035, Aug 24, 1993

Filed:

May 18, 1992

Appl. No.:

7/884161

Inventors:

Thomas W. Bein - Annapolis MD
Woodwerth C. Bein - Lavalette NJ

International Classification:

G10D 1308

US Classification:

84404

Abstract:

A percussive instrument that simulates the sound of rain by imparting fill material against sound generating rods that are located inside a cylindrical shell. The sound is obtained by rotation of the instrument about the axis of a handle held by one hand of a user while the other hand grasps a crank handle to facilitate rotation.

US Patent:

49814249, Jan 1, 1991

Filed:

Dec 21, 1988

Appl. No.:

7/287352

Inventors:

Thomas W. Bein - Annapolis MD

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

F01C 306
F01C 1900

US Classification:

418 99

Abstract:

A single screw mechanism of the positive displacement rotary type such as a ompressor or expander for varying the pressure of a fluid. A stationary housing having a bore symmetry surrounds and is configured to cooperate in a substantially fluid-tight manner with the surface of revolution of the crests of a compound conical mainrotor having a plurality of projecting spiral threads whose root width-thread height define substantially constant cross sectional chamber areas in the grooves between adjacent threads along their length for substantially fluid-tight engagement with the teeth of at least one rotatably mounted cylindrical gaterotor whose axis is symmetrically inclined at a transverse angle that is less than 90 degrees with respect to the fixed spin axis of said mainrotor so as to permit the toothed outer peripheral surface containing labyrinthial seals to extend through a window path opening in said housing thereby exposing one side of each gaterotor tooth face in meshing relation with the mainrotor chamber in the housing to the changed-pressure fluid during rotation. The housing is fitted with ports for the admission and discharge of fluid at opposite ends of said mainrotor, the ports for the passage of the changed-pressure fluid being axially aligned with the mainrotor and located in a discharge ring in close proximity whereat each gaterotor exits from engagement with the mainrotor. A hydrostatic type pressure port is provided in the housing on the suction side of the aforesaid window path.

US Patent:

47753048, Oct 4, 1988

Filed:

Jul 3, 1986

Appl. No.:

6/885480

Inventors:

Thomas W. Bein - Annapolis MD

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

F04C 2910

US Classification:

418 99

Abstract:

A scavenging system for single screw compressors to remove residual liquid eal from an open combustion chamber prior to controlled liquid seal injection. The removal of residual liquid seal is accomplished by providing the casing with a scavenging slot which surrounds a portion of the open combustion chamber thereby allowing centrifugal force to radially remove residual liquid seal.

US Patent:

42048168, May 27, 1980

Filed:

Sep 8, 1978

Appl. No.:

5/940528

Inventors:

Thomas W. Bein - Annapolis MD

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

F04C 102
F04C 1502

US Classification:

418 15

Abstract:

In a pump having scroll vane impellers, rapid-opening additional discharge orts are formed by slats in the scroll vanes overlapping slats in the opposing end plates, thereby allowing fluids to be pumped without over-pressurization.

Author:

Thomas Bein

ISBN #:

0841224609

Author:

Thomas Bein

ISBN #:

3503037985

Author:

Thomas Bein

ISBN #:

3631398476

Author:

Thomas Bein

ISBN #:

3631476426

Author:

Thomas Bein

ISBN #:

3631502508

Author:

Thomas Bein

ISBN #:

3201018066