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David R Longsderff

from Columbia, PA
Age ~66
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Also known as:
David Richard Longsderff, David P Longsderff, Diana Duerst
Phone and address:
2 Sparrow Ln, Kinderhook, PA 17512
(717) 285-7322
Related to:
Bonnie L Bingham, 61Patricia Rowden, 83Kristen Longsderff, 29Joshua E Longsderff, 32Edward W Longenecker, 86Andrew D Longsderff, 35Brenda L Longsderff, 61
Connected to:
Nathan L Longsdorf, 51Martin W Longseth, 85Ryan A Longseth, 28Alexandra E Longshaw, 28Christina D Longshore, 67Daun K Longshore, 56Eddy Longshore, 77Harold E Longshore, 87Hazel M Longshore, 107Horace M Longshore, 65

David Longsderff Phones & Addresses

  • 2 Sparrow Ln, Columbia, PA 17512 (717) 285-7322
  • 131 Manor Church Rd, Columbia, PA 17512 (717) 285-7322
  • Mc Veytown, PA
  • York, PA
  • Berwick, PA
  • 2 Sparrow Ln, Columbia, PA 17512 (717) 940-9486

Work

Position: Professional/Technical

Education

Degree: Graduate or professional degree

Business Records

Name / Title
Company / Classification
Phones & Addresses
David Longsderff
Secretary
Manor Brethren In Christ Church
Religious Organization
530 Central Mnr Rd, Lancaster, PA 17603
(717) 285-3138

Publications

Us Patents

Heat Pipe Fin Stack With Extruded Base

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US Patent:
7117930, Oct 10, 2006
Filed:
Nov 8, 2004
Appl. No.:
10/983428
Inventors:
John J. Todd - Chester Springs PA, US
David R. Longsderff - Columbia PA, US
Jerome E. Toth - Hatboro PA, US
Assignee:
Thermal Corp. - Wilmington DE
International Classification:
F28D 15/04
US Classification:
16510421, 165 804
Abstract:
A heat sink has a base plate to be clamped against a heat source and one or more heat pipes containing a phase change fluid. Each heat pipe has an elongated tubular evaporator fitted in a channel in the base plate, and a columnar condenser part perpendicular to the base plate forming a structural column for air heat exchange fins. The channel in the base plate is parallel to an edge. An additional channel or ridge is provided, also parallel to the edge, for receiving a clamp or spring clip to urge the base plate against the heat source. The base plate is inexpensively extruded with the parallel channels, ridges, etc. , extending across the width of the base plate parallel to the edge. The heat sink has a minimum number of inexpensive parts yet is highly thermally efficient.

Heat Pipe Fin Stack With Extruded Base

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US Patent:
20090126192, May 21, 2009
Filed:
Aug 28, 2006
Appl. No.:
11/467711
Inventors:
John J. Todd - Chester Springs PA, US
David R. Longsderff - Columbia PA, US
Jerome E. Toth - Hatboro PA, US
International Classification:
B21D 53/02
US Classification:
2989003
Abstract:
A heat sink has a base plate to be clamped against a heat source and one or more heat pipes containing a phase change fluid. Each heat pipe has an elongated tubular evaporator fitted in a channel in the base plate, and a columnar condenser part perpendicular to the base plate forming a structural column for air heat exchange fins. The channel in the base plate is parallel to an edge. An additional channel or ridge is provided, also parallel to the edge, for receiving a clamp or spring clip to urge the base plate against the heat source. The base plate is inexpensively extruded with the parallel channels, ridges, etc., extending across the width of the base plate parallel to the edge. The heat sink has a minimum number of inexpensive parts yet is highly thermally efficient.

Heat Pipe Fin Stack With Extruded Base

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US Patent:
6830098, Dec 14, 2004
Filed:
Jun 9, 2003
Appl. No.:
10/457309
Inventors:
John J. Todd - Chester Springs PA
David R. Longsderff - Columbia PA
Jerome E. Toth - Hatboro PA
Assignee:
Thermal Corp. - Stanton DE
International Classification:
F28D 1500
US Classification:
16510433, 16510421, 165 803, 361700
Abstract:
A heat sink has a base plate to be clamped against a heat source and one or more heat pipes containing a phase change fluid. Each heat pipe has an elongated tubular evaporator fitted in a channel in the base plate, and a columnar condenser part perpendicular to the base plate forming a structural column for air heat exchange fins. The channel in the base plate is parallel to an edge. An additional channel or ridge is provided, also parallel to the edge, for receiving a clamp or spring clip to urge the base plate against the heat source. The base plate is inexpensively extruded with the parallel channels, ridges, etc. , extending across the width of the base plate parallel to the edge. The heat sink has a minimum number of inexpensive parts yet is highly thermally efficient.
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David R Longsderff from Columbia, PA, age ~66 Get Report