David L Muth

US Patent:

44158327, Nov 15, 1983

Filed:

Nov 20, 1981

Appl. No.:

6/323260

Inventors:

Richard D. Faulkner - Lancaster PA
Dale V. Henry - Willow Street PA
David L. Muth - East Petersburg PA

Assignee:

RCA Corporation - New York NY

International Classification:

H01J 4000

US Classification:

313533

Abstract:

A photomultiplier tube comprises an electron multiplier assembly including a pair of oppositely-disposed insulative support spacers. A plurality of elements including an ultimate dynode and an anode are affixed to the support spacers. The ultimate dynode comprises a relatively inflexible multilateral hollow member having two plane-face surfaces lying at an acute angle to one another and terminating at a lower transverse edge. The ultimate dynode includes dynode mounting tabs extending from opposing ends thereof for affixing the ultimate dynode to the support spacers. The anode includes a substantially flat electron permeable mesh portion spaced from one of the plane-face surfaces of the ultimate dynode. Anode mounting tabs extend from opposing ends thereof for affixing the anode to the support spacers. Electrical leakage isolation slots are formed in the support spacers to increase the electrical leakage path length across the support spacers between the ultimate dynode and the anode.

US Patent:

54959780, Mar 5, 1996

Filed:

Sep 6, 1994

Appl. No.:

8/300857

Inventors:

David L. Muth - Columbia PA

Assignee:

Thermacore, Inc. - Lancaster PA

International Classification:

B23K 119
B23K10316

US Classification:

2281221

Abstract:

The disclosure is for a method of bonding materials with severely mismatched coefficients of thermal expansion, such as carbon/carbon and a composite of aluminum oxide and niobium and for the structure of the bonded joint. The key to a good bond between such materials is the use of a thin layer of porous sintered metal as an intermediate material which is bonded to the two diverse thermal expansion materials. The sintered material has a porosity of 20 to 80 percent, and stays bonded to both of the different material surfaces while the sintered material itself is also not destroyed by the thermal stress.

US Patent:

61316504, Oct 17, 2000

Filed:

Jul 20, 1999

Appl. No.:

9/357226

Inventors:

Mark T. North - Lancaster PA
John H. Rosenfeld - Lancaster PA
David L. Muth - Columbia PA
Brian D. Fritsch - Columbia PA
C. Scott Schaeffer - Ephrata PA

Assignee:

Thermal Corp. - Georgetown DE

International Classification:

F28F 700

US Classification:

165170

Abstract:

The apparatus is an easily assembled, fluid cooled, single phase heat sink. The heat sink is constructed of only four simple parts, a pan shaped casing, a simple thermally conductive porous pad, a manifold block with channels, and a lid. The lid includes input and output fluid holes which are interconnected to sets of alternating channels in the manifold block, so that adjacent channels are isolated from each other and are connected to only either the input or the output holes. Thus, the only access between the adjacent input and output channels is through the porous pad which is sandwiched between the manifold block and the bottom of the casing. Fluid flow through the porous pad thereby cools the entire bottom of the casing which is held in heat transfer relationship with a heat source.

US Patent:

44477589, May 8, 1984

Filed:

Nov 20, 1981

Appl. No.:

6/323236

Inventors:

Richard D. Faulkner - Lancaster PA
Dale V. Henry - Willow Street PA
David L. Muth - East Petersburg PA

Assignee:

RCA Corporation - New York NY

International Classification:

H01J 4000

US Classification:

313532

Abstract:

A photomultiplier tube comprises an evacuated envelope having a generally cylindrical sidewall with a faceplate closing one end of the envelope. A conductive coating is disposed on a portion of the sidewall adjacent to the faceplate. A photocathode is formed on the faceplate and on a portion of the conductive coating. An electron multiplier assembly including a plurality of electrodes is spaced from the photocathode. A plurality of leads extend from the electrodes to a plurality of terminals in a base attached to the tube. A resilient electrical contact member is connected to a terminal in the base for applying a potential to the photocathode. The electrical contact member has a pair of support tabs at the opposite ends of the member. The tabs are affixed to the multiplier assembly so that the contact member assumes a substantially arcuate shape which contacts and conforms to a large area of the conductive coating on the sidewall of the envelope.

US Patent:

46434933, Feb 17, 1987

Filed:

Jul 19, 1985

Appl. No.:

6/756829

Inventors:

Richard J. Sides - Mount Joy PA
Christopher L. Crawford - Middletown PA
Raymond J. Nunweiler - Lititz PA
David L. Muth - Lancaster PA
George P. Hope - Lancaster PA

Assignee:

RCA Corporation - Princeton NJ

International Classification:

A47B 8106

US Classification:

312 72

Abstract:

A plastic television chassis adapted for use in combination with a cathode-ray tube within an enclosure includes a base having integral snap-together parts disposed at opposite ends thereof. A pair of side frames are attached, respectively, to the opposite ends of the base in a substantially orthogonal orientation. Each side frame has integral snap-together parts disposed adjacent a first edge thereof for mating with the snap-together parts of the base, and also has integral slidable-groove parts disposed along a second edge thereof adjacent the first edge. A panel is attached to the side frames by integral slidable-groove parts disposed along opposite sides thereof for mating, respectively, with the slidable-groove parts of the side frames.