Flow Or Valve Position Patents (Class 165/DIG7)
  • Patent number: 4191240
    Abstract: A motor-containing device, particularly a submersible pump of the type including a sealed housing and motor mounted within the housing, includes a heat conducting filler material disposed in the gap between the motor and internal surface of the housing walls to improve the transfer of motor-generated heat from the motor to the housing walls. The filler material is such that it can be disposed in the gap in an initial form or state without concern for matching the exact dimensions of the gap and subsequently transformed while in the gap to provide a layer that fills the gap and provides a path for heat conduction to the housing walls. In one form, the filler material comprises a high memory thermoplastic that is mechanically prestretched into relatively thin sheet form, added to the gap during assembly of the pump, and then expanded in the gap by the application of heat thereto. In another form, the filler material comprises a thermoplastic material exhibiting high thermal expansion.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: March 4, 1980
    Inventors: Clinton Rule, Peter A. Rubel
  • Patent number: 4135573
    Abstract: A heat shielding tool is disclosed, having a pair of opposed pivotally connected handles terminating in a pair of opposed jaws. The jaws have interiorly relieved arcuate areas so that, when closed, they will form a circle so that the circular opening formed thereby can be clamped about a pipe or tube. The jaws also have external heat dissipating members taking a variety of forms but which can be generally broadly termed fins. In this manner heat generated by soldering a pipe joint will travel along the pipe or tube to the tool and be dissipated into the atmosphere. The handles also have tension means carried thereon which will serve to normally urge the jaws toward mating or closed position so that the tool may be readily clamped about the pipe or tubing.
    Type: Grant
    Filed: October 29, 1976
    Date of Patent: January 23, 1979
    Inventor: Melville B. Sutter
  • Patent number: 4109706
    Abstract: Copper backings brazed to ceramic parts exposed to high-temperature oxidizing high-velocity gases must be secured, for mounting purposes, to water-cooled fixed support, with high thermal conductance between backing and support. Prior art practice of brazing backing to support is inconvenient, making subsequent removal difficult, and disadvantageous in requiring that support be heated to brazing temperature (which may weaken support by annealing it). Invention teaches channel-shaped clip, on back of backing, whose legs are spread slightly to be inserted in mating slots in support face. All mating surfaces are tinned with lead-tin eutectic solder. If mere mechanical contact provides adequate thermal conductance between backing and support, solder remains unmelted; but if mechanical contact is imperfect temperature of backing will rise, and solder will melt and bridge gap between backing and support, raising thermal conductance.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: August 29, 1978
    Assignee: General Electric Company
    Inventor: Michael J. Noone
  • Patent number: 4102637
    Abstract: A work support for vacuum electric furnaces is disclosed which supports a work piece in flat condition within close tolerances and which includes a plurality of spaced vertical pins with a heat sink through which the pins extend, the support being removable and remachinable to retain the desired flatness.
    Type: Grant
    Filed: September 16, 1976
    Date of Patent: July 25, 1978
    Assignee: Abar Corporation
    Inventors: Benjamin A. Kreider, William J. Metalsky
  • Patent number: 3965973
    Abstract: A conductive heat transfer mechanism through which energy readily flows between two bodies or systems at different temperatures. The present mechanism is embodied in a temperature sensing network for determining and controlling the surface temperature of a xerographic fuser roll. The network includes a probe shoe containing at least one temperature sensing element with the shoe being positioned in close non-contiguous relation with the moving surface of a heated fuser roll. A magnetic flux field is created within the air gap between the heated roll surface and the probe shoe and a magnetic medium, preferably being in fluid form, having a relatively high coefficient of thermal conductivity is placed within the flux field through which a rapid and efficient flow of heat is maintained.
    Type: Grant
    Filed: November 13, 1974
    Date of Patent: June 29, 1976
    Assignee: Xerox Corporation
    Inventors: Raghulinga R. Thettu, Xerox Corporation