Robert N Hanson

US Patent:

6411463, Jun 25, 2002

Filed:

Jul 20, 2000

Appl. No.:

09/621295

Inventors:

Peter R. Janik - Shakopee MN
Robert A. Hanson - Bloomington MN

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 1702

US Classification:

360 9701

Abstract:

The present invention is directed to an insert for use in a disc drive to dampen acoustic vibration and shield electronic elements from stray magnetic flux generated by a magnet assembly of a voice coil motor. The insert includes an acoustic insulator portion and a magnetic shield. The acoustic insulator portion is compressed between a base and a circuit board of the disc drive to suppress vibration of the circuit board. The magnetic shield is attached to the acoustic insulator portion below the magnet assembly and is shaped to shield a portion of the circuit board from stray magnetic flux generated by the magnet assembly.

US Patent:

D464299, Oct 15, 2002

Filed:

May 15, 2002

Appl. No.:

29/160703

Inventors:

Patrick L. Ohm - Mesa AZ
Robert Hanson - Scottsdale AZ

Assignee:

Bell Autmotive Products, Inc. - Scottsdale AZ

International Classification:

1216

US Classification:

D12193

US Patent:

D464300, Oct 15, 2002

Filed:

May 15, 2002

Appl. No.:

29/160720

Inventors:

Patrick L. Ohm - Mesa AZ
Robert Hanson - Scottsdale AZ

Assignee:

Bell Automotive Products, Inc. - Scottsdale AR

International Classification:

1216

US Classification:

D12193

US Patent:

44241054, Jan 3, 1984

Filed:

Aug 5, 1982

Appl. No.:

6/405586

Inventors:

Robert M. Hanson - Phoenix AZ

Assignee:

Henes Products Corp. - Phoenix AZ

International Classification:

C25B 106
C25B 1502
C25B 1508
C25B 904

US Classification:

204228

Abstract:

An improved apparatus for gas generators producing oxygen and hydrogen or oxyhydrogen gas, the apparatus comprising a solid state current limiting circuit in combination with an assembly of electrolytic cells. The current-limiting circuit replaces the variable auto-transformer commonly heretofore employed for adjusting cell current and regulates cell current.

US Patent:

44988630, Feb 12, 1985

Filed:

May 23, 1983

Appl. No.:

6/496337

Inventors:

Robert C. Hanson - Excelsior MN
Leon C. Hanson - Bloomington MN

Assignee:

Hays-Republic Corporation - Riviera Beach FL

International Classification:

F23N 100

US Classification:

431 89

Abstract:

A feed forward control system maximizes combustion efficiency in a combustion system, by controlling the amount of excess air supplied to the burner. The feed forward control system includes flow sensors for sensing the flow of air and fuel to the burner. Based upon the fuel flow measurement, a digital computer determines the correct stoichiometric amount of combustion air required and the firing rate of the burner. Based upon the firing rate, the digital computer determines, from stored data in a look-up table, the necessary excess air required. Based upon the stoichiometric combustion air and the excess air, the computer determines the actual air that is required. This air required is then compared with the air flow measurement received by the digital computer. Based upon this comparison, an air trim actuator is driven by the computer until the required air flow is attained.

US Patent:

42772540, Jul 7, 1981

Filed:

Feb 15, 1980

Appl. No.:

6/121796

Inventors:

Robert C. Hanson - Excelsior MN

Assignee:

Energy Systems, Incorporated - Eden Prairie MN

International Classification:

F17D 301
C10K 306

US Classification:

48180R

Abstract:

In a fuel gas distribution system, at least one fuel gas stream is mixed with air to achieve a heating value equivalency which is the same as that of another fuel gas having a different heating value and specific gravity. The heating value equivalency is defined as the heating value of a fuel gas in heat units per unit of volume divided by the square root of the specific gravity of the gas. A control system is employed to measure the specific gravity, pressure, temperature and flow rate of the first gas in a first gas stream, and the pressure, temperature and flow rate of air in a second stream, and to control the flow rate of the gas from the first stream and air from the second stream such that the resulting mixture from the two streams has the same heating value equivalency as that of a third gas which was used to adjust the gas burners for use in that system.

US Patent:

41310845, Dec 26, 1978

Filed:

Apr 7, 1977

Appl. No.:

5/785409

Inventors:

Robert C. Hanson - Excelsior MN
Leon C. Hanson - Bloomington MN

Assignee:

Energy Systems, Incorporated - Eden Prairie MN

International Classification:

F22B 102
F22D 508
F22D 526

US Classification:

122 33

Abstract:

A water bath vaporizer for converting liquid propane into gaseous propane includes a propane-carrying heat transfer pipe in the form of a helix immersed in a water bath in an insulated upright cylindrical water chamber. Multiple straight vertical flues are integral with a bottom plate and a top plate of the water chamber and are open through the water bath and the center of the helix to carry combustion products and heated air from a combustion chamber to a stack above. Liquid propane is introduced at the top of the helix and gaseous propane is removed from the bottom and is discharged vertically upwardly through a liquid cut-off float valve which prevents flow of liquid propane out of the vaporizer. A breather attachment includes a breather pipe having a first section extending outwardly from a top portion of the water chamber at a slight upward angle and having a vertical second section terminating in an upwardly opening outer end. A vent cap over this open end is removable to add make-up water to the water chamber.

US Patent:

42033004, May 20, 1980

Filed:

Oct 25, 1977

Appl. No.:

5/844634

Inventors:

Robert C. Hanson - Excelsior MN
Leon C. Hanson - Bloomington MN

Assignee:

Energy Systems Incorporated - Eden Prairie MN

International Classification:

F22B 116
F17C 902

US Classification:

62 52

Abstract:

A horizontal water filled vaporizer chamber is heated through the instrumentality of a horizontal combustion chamber extending through a lower portion of the vaporizer chamber. A first plenum inside the vaporizer chamber at a first end thereof receives combustion products from the chamber, and horizontal flues open to this first plenum carry these combustion products from it through the vaporizer chamber to a second plenum outside of the boiler where they are discharged up a stack. A plurality of vaporizer coils, each consisting of vertically spaced horizontal runs of pipe, extend from end to end in an upper portion of the vaporizer chamber. Each pair of adjacent pipe runs in each coil lie in a plane forming an acute angle with respect to a horizontal plane. Every vaporizer coil is connected inside the vaporizer chamber at its lower end to a liquid propane inlet header and at its upper end to a gaseous propane outlet header. A liquid propane inlet pipe and a propane vapor outlet pipe each open through the first end wall of the vaporizer chamber into their respective headers.

Address:

9080 Mdw Way, Victoria, MN 55386

Phone:

5128681543

VIN:

1FMFU20548LA01101

Make:

FORD

Model:

EXPEDITION

Year:

2008