Kenneth A Kaufman

US Patent:

6919863, Jul 19, 2005

Filed:

Oct 6, 2003

Appl. No.:

10/678628

Inventors:

Kenneth W. Kawahara - Manhattan Beach CA, US
Kenneth A. Kaufman - Palos Verdes Estates CA, US
Garrett R. Wittkopp - Redondo Beach CA, US

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

H01Q015/14

US Classification:

343912, 343914, 343915

Abstract:

An integral reflector-boom assembly () for a deployable antenna includes a facesheet () of stiff reflective material and a stiff lattice or grid structure bonded to the facesheet to form a reflector () portion of the assembly and a boom (). Interlocked ribs (& ) are arranged in a pattern that defines an isogrid structure in the reflector portion and at least a part of the boom assembly. Some of the ribs () extend in one piece from the reflector portion through the boom portion.

US Patent:

6975282, Dec 13, 2005

Filed:

Sep 16, 2003

Appl. No.:

10/663924

Inventors:

Kenneth A. Kaufman - Palos Verdes Estates CA, US
Garrett R. Wittkopp - Redondo Beach CA, US
Kenneth W. Kawahara - Redondo Beach CA, US
John E. Richer - Carlsbad CA, US

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

H01Q015/14

US Classification:

343912, 343915

Abstract:

An integrated reflector and boom () for a deployable space based reflector antenna includes a facesheet () of stiff reflective material and a stiff lattice or grid structure bonded to the facesheet in a reflector portion of the assembly and defines a boom to the assembly. The grid structure is formed of ribs ( & ) that interlock through slots formed in the ribs, arranged in a symmetric pattern that defines an isogrid structure in the reflector portion and in at least a part of the boom assembly. At least some of the ribs extend in one piece from the reflector portion and into the boom. One of those ribs () is located along an axis of symmetry of the grid structure.

US Patent:

60357681, Mar 14, 2000

Filed:

May 17, 1996

Appl. No.:

8/651046

Inventors:

Kenneth L. Kaufman - Van Nuys CA

International Classification:

A47J 3700
F24C 116

US Classification:

99449

Abstract:

A portable heat unit is described. The heat unit is useful as an oven, barbecue, griddle, etc. The heat unit comprises a body, a lid, a cooking support member such as a grill rack or oven plate and a brace. The body comprises a number of rectangular panels joined to form an open-ended polyhedron such as a box. The panel joints are movable, and preferably comprise piano hinges, thus rendering the body collapsible. When in use, the stand is rendered noncollapsible by installation of the brace. The brace comprises a rigid member which is placed between two panels to permit control of the burning of the fuel, heat flow, temperature and to define an opening through which the fuel and food may be conveniently accessed.

US Patent:

57112100, Jan 27, 1998

Filed:

May 17, 1996

Appl. No.:

8/651045

Inventors:

Kenneth L. Kaufman - Van Nuys CA

International Classification:

A47J 2700
F24C 116

US Classification:

99340

Abstract:

A rugged, flatly folding, portable chafing dish assembly is comprised of a cover, food pan, water pan, collapsible stand and heat source. The collapsible stand is rectangular and is comprised of four rigid plates forming the sides of the rectangular stand which are rotatably coupled together by means of a flatly folding piano hinge. The hinge is integrally formed with the sides and can be disassembled for cleaning. The two lateral sides of the stand are identical and interchangeable, as are the two end sides. The rectangular stand is provided with apertures through the lateral and end sides, both for air access to create a heat draft for the burner source when placed within the stand, as well as access to the burners when the chafing dish assembly is assembled. A rigid rectangular tray extends the length of the stand and connects to the end sides along an access aperture edge thereby rendering the otherwise collapsible rectangular stand rigid. Additional rigidity of the chafing dish assembly is realized when the water pan and food pan are disposed in the stand in as nested fashion.

US Patent:

55179037, May 21, 1996

Filed:

Nov 3, 1994

Appl. No.:

8/333854

Inventors:

Kenneth L. Kaufman - Van Nuys CA

International Classification:

F24C 116
A47J 2700

US Classification:

99449

Abstract:

A rugged, flatly folding, portable chafing dish assembly is comprised of a cover, food pan, water pan, collapsible stand and heat source. The collapsible stand is rectangular and is comprised of four rigid plates forming the sides of the rectangular stand which are rotatably coupled together by means of a flatly folding piano hinge. The hinge is integrally formed with the sides and can be disassembled for cleaning. The two lateral sides of the stand are identical and interchangeable, as are the two end sides. The rectangular stand is provided with apertures through the lateral and end sides, both for air access to create a heat draft for the burner source when placed within the stand, as well as access to the burners when the chafing dish assembly is assembled. A rigid rectangular tray extends the length of the stand and connects to the end sides along an access aperture edge thereby rendering the otherwise collapsible rectangular stand rigid. Additional rigidity of the chafing dish assembly is realized when the water pan and food pan are disposed in the stand in as nested fashion.