Gerald J Carlson

US Patent:

6445769, Sep 3, 2002

Filed:

Oct 25, 2000

Appl. No.:

09/696413

Inventors:

Cheryl L. Panasik - Elburn IL
Thomas R. Miller - St. Charles IL
Gerald J. Carlson - Aurora IL

Assignee:

Koninklijke Philips Electronics N.V. - Eindhoven

International Classification:

H01J 3510

US Classification:

378130, 378141

Abstract:

A high energy x-ray tube includes an evacuated chamber ( ) containing a rotor ( ) which rotates an anode ( ) through a stream of electrons (A) in order to generate an x-ray beam (B). The rotor includes a bearing assembly (C) having a hollow bearing shaft ( ) centrally aligned with a longitudinal axis (Z) of the rotor. The bearing shaft includes an interior annular wall ( ) having an inner surface which defines a central bore ( ). The bearing shaft has an outer surface ( ), which with an inner surface of the bearing shaft, defines an annular chamber ( ). An opening ( ) is provided at the forward end of the annular wall to provide access from the central bore to the annular chamber. During exhaust processing, baking cycles, and normal operation of the x-ray tube, a pump ( ) forces a cooling medium through the central bore, through the opening of the annular wall, and into the annular chamber. The cooling medium exits through channels ( ). While in the annular chamber, the cooling medium cools a plurality of forward and rearward lubricated bearings ( F, R) located adjacent an outer surface of the hollow bearing shaft.

US Patent:

6511224, Jan 28, 2003

Filed:

Oct 18, 2000

Appl. No.:

09/691015

Inventors:

Qing Kelvin Lu - Aurora IL
Gerald J. Carlson - Aurora IL

Assignee:

Koninklijke Philips Electronics, N.V. - Eindhoven

International Classification:

H01J 3510

US Classification:

378199, 378141

Abstract:

A cooling oil circuit (D) circulates cooling oil over an x-ray tube absorbing its waste heat. A refrigeration circuit (E) then cools the cooling oil. A heat buffer ( ) absorbing peak heat loads from the cooling fluid when the x-ray tube is generating x-rays. Valves ( ) regulate a relative amount of cooling oil entering the heat buffer to increase heat transfer efficiency. The heat buffer enables the system to handle peak heat loads with a smaller, more condensed refrigeration system, by absorbing heat during operation of the x-ray tube and releasing heat between operations.

US Patent:

6570960, May 27, 2003

Filed:

Mar 7, 2000

Appl. No.:

09/519986

Inventors:

Daniel E. Kuzniar - Lyons IL
Lester D. Miller - Hudson OH
Gerald J. Carlson - Lombard IL

Assignee:

Koninklijke Philips Electronics N.V.

International Classification:

H01J 3510

US Classification:

378125, 378121, 378131

Abstract:

An x-ray tube ( ) includes an evacuated envelope ( ). Mounted within the evacuated envelope are a cathode ( ) and a rotatbly supported anode ( ). A rotor ( ) is included for rotatably driving the anode. The rotor ( ) is electrically insulated from the anode ( ) by a disk ( ) comprised of an insulating material.

US Patent:

6603834, Aug 5, 2003

Filed:

Sep 18, 2001

Appl. No.:

09/954822

Inventors:

Qing K. Lu - Aurora IL
Todd R. Bittner - Chicago IL
Allan D. Kautz - Naperville IL
Gerald J. Carlson - Aurora IL
Thomas R. Miller - St. Charles IL
Jose A. Buan - Bolingbrook IL
Salvatore G. Perno - Winfield IL
Paul M. Xu - Oswego IL
Patrick P. McNally - Geneva IL

Assignee:

Koninklijke Philips Electronics, N.V. - Eindhoven

International Classification:

H01J 3510

US Classification:

378141, 378127, 378130

Abstract:

An x-ray tube assembly ( ) includes a housing ( ) and an insert frame ( ) supported within the housing ( ), such that the insert frame ( ) defines a substantially evacuated envelope in which a cathode assembly ( ) and a rotating anode assembly ( ) operate to produce x-rays. The rotating anode assembly ( ) includes an anode target plate ( ) coupled to a rotor ( ) and bearing shaft ( ), which is rotatably supported within a bearing housing ( ), by a plurality of ball bearings ( ). A heat barrier ( ) substantially surrounds the bearing housing ( ) and is coupled, along with the bearing housing ( ) to an anode cold plate ( ). The anode cold plate ( ) includes a grooved cover ( ), a basin ( ), and a plurality of corrugated fins ( ) disposed therein. Coupling both the bearing housing ( ) and the heat barrier ( ) to the anode cold plate ( ) provides an effective means for cooling the bearing assembly ( ).

US Patent:

D479997, Sep 30, 2003

Filed:

Sep 25, 2002

Appl. No.:

29/168086

Inventors:

Len Ekkert - Lemont IL
Bridget Zemlo - West Chicago IL
Luther A. F. Little - late of Hilliard OH
Gerald Carlson - Valencia CA
Gordon Lane - Valencia CA
Michael Rodero - Roxbury CT

Assignee:

Societe des Produits Nestle S.A. - Vevey

International Classification:

0907

US Classification:

D 9452, D9454, D9435

US Patent:

D483672, Dec 16, 2003

Filed:

Sep 9, 2002

Appl. No.:

29/167175

Inventors:

Frederick G. Kudert - Niles IL
Brent W Lindberg - St. Charles IL
Donald Warren - West Chicago IL
Irvin C Zimny - Glen Ellyn IL
Gerald Carlson - Valencia CA
Gordon S Lane - Valencia CA
Michael Rodero - Roxbury CT

Assignee:

Societe des Produits Nestle S.A. - Vevey

International Classification:

0901

US Classification:

D 9502, D9520

US Patent:

D483673, Dec 16, 2003

Filed:

Sep 9, 2002

Appl. No.:

29/167212

Inventors:

Frederick D. Kudert - Niles IL
Brent W Lindberg - St. Charles IL
Donald Warren - West Chicago IL
Irvin C Zimny - Glen Ellyn IL
Gerald Carlson - Valencia CA
Gordon S Lane - Valencia CA
Michael Rodero - Roxbury CT

Assignee:

Societe des Produits Nestle S.A. - Vevy

International Classification:

0901

US Classification:

D 9502, D9520

US Patent:

D503112, Mar 22, 2005

Filed:

Sep 9, 2002

Appl. No.:

29/167204

Inventors:

Frederick Kudert - Niles IL, US
Brent N Lindberg - St. Charles IL, US
Donald Warren - West Chicago IL, US
Irvin C Zimny - Glen Ellyn IL, US
Gerald Carlson - Valencia CA, US
Gordon S Lane - Valencia CA, US
Michael Rodero - Roxbury CT, US

Assignee:

Societe Des Produits Nestle S.A. - Vevey

International Classification:

0901

US Classification:

D 9500