Patents by Inventor Donald L. Clemens

Donald L. Clemens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6966363
    Abstract: A heat collector (50) is formed by at least one extruding step for reducing machining steps, and is assembled to a separately formed mounting frame (40) which may be stamped and formed or molded. The heat collector has flanges (53) which bear against retaining tabs (45) formed on the mounting frame, and may be held by solder, glue, or mechanical means. The heat collector may receive a heat dissipator (18), or may be formed as a heat sink (56) such as a pin-fin type heat sink. The mounting frame can be fixed to a printed circuit board or the like having a component such as a central processing unit which contacts the collector in order to cool the unit.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: November 22, 2005
    Assignee: Aavid Thermolloy, LLC
    Inventors: David W Gailus, Donald L. Clemens
  • Publication number: 20040188080
    Abstract: A heat collector (50) is formed by at least one extruding step for reducing machining steps, and is assembled to a separately formed mounting frame (40) which may be stamped and formed or molded. The heat collector has flanges (53) which bear against retaining tabs (45) formed on the mounting frame, and may be held by solder, glue, or mechanical means. The heat collector may receive a heat dissipator (18), or may be formed as a heat sink (56) such as a pin-fin type heat sink. The mounting frame can be fixed to a printed circuit board or the like having a component such as a central processing unit which contacts the collector in order to cool the unit.
    Type: Application
    Filed: April 8, 2004
    Publication date: September 30, 2004
    Inventors: David W Gailus, Donald L Clemens
  • Patent number: 6178628
    Abstract: An apparatus and method for thermally coupling a heat sink directly to a surface mount heat generating device package in a manner which provides a more efficient thermal path between the heat sink and the device package, and which allows for a simplified assembly process. The heat sink is mounted in direct thermal communication with the heat generating device package which is surface mounted to a printed circuit board or other substrate. The inventive heat sink has a reservoir of thermal preform which allows the heat sink to be secured to a device package at the same time as the device package is being secured to the surface mount substrate, as opposed to doing so in a separate step in the assembly process after the electronic device packages have already been secured to the surface mount substrate. The inventive heat sink thereby simplifies the assembly process by eliminating steps in the manufacturing process and by allowing for the further automation of the assembly process.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: January 30, 2001
    Assignee: Aavid Thermalloy, LLC
    Inventors: Donald L. Clemens, Mark Mellinger, Gary Kuzmin
  • Patent number: 6082440
    Abstract: A heat dissipation system for a heat generating electronic device includes a releasable attachment assembly for removably securing a heat sink to a heat spreader plate thereof includes at least one spring clip for biasing the heat spreader plate into a secured engagement with the heat sink. The spring clips are adapted to allow easy engagement and/or disengagement of the heat sink from the heat spreader plate, thereby facilitating the use of variously configured heat sinks as part of the heat dissipation system.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: July 4, 2000
    Assignee: Thermalloy, Incorporated
    Inventors: Donald L. Clemens, Michael M. Heatly, Matthew C. Smithers, Mark C. Mellinger
  • Patent number: 5991154
    Abstract: A heat sink having a support base which supports a base plate is used to mount one or more device packages on a circuit board or the like. The support base is adapted to be secured to the circuit board. The base plate has opposed major faces adapted for mating with device packages. Tongues or clips secure individual device packages on the major faces of the base plate independently to that device packages may be removeably attached to either or both sides of the base plate.
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: November 23, 1999
    Assignee: Thermalloy, Inc.
    Inventors: Donald L. Clemens, Steven F. Edwards
  • Patent number: 5917700
    Abstract: A clip assembly and method of attachment for a heat sink having a pin-fin array employing thermally conducting tape to secure the heat sink to a heat dissipating BGA component together with at least one clip assembly which is secured to the underside of the component at its edges.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: June 29, 1999
    Assignees: Lucent Technologies Inc, Thermalloy Inc.
    Inventors: Donald L. Clemens, Theophilus Ifeanyi Ejim, Kon Mang Lin, Ralph E. Stenerson
  • Patent number: 5371652
    Abstract: A spring clamp and insulating shoe assembly is used to secure a finned heat sink to an electronic device package. The spring clamp body fits between or around fins or pins extending from one face of a heat sink and carries an insulating shoe which fits around the edge of the device package and has a lip which engages the opposite face of the device package to urge the device package and heat sink into mutual contact.
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: December 6, 1994
    Assignee: Thermalloy, Inc.
    Inventors: Donald L. Clemens, Keith Mandell
  • Patent number: 5038858
    Abstract: A finned heat sink is constructed from a base having parallel grooves with a latching lip. The fins are individually formed with a retaining boss adjacent one edge which is adapted to mate with the latching lip to secure the fin in the groove. Spacing tabs are formed on the fins to assure uniform parallel spacing between the fins when assembled.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: August 13, 1991
    Assignee: Thermalloy Incorporated
    Inventors: William D. Jordan, Donald L. Clemens
  • Patent number: 5019942
    Abstract: Disclosed are insulating covers for electronic device packages secured to heat sinks by clips. The covers provide minimum predetermined creepage distance between the electronic device packages and the heat sinks upon which they are mounted.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: May 28, 1991
    Assignee: Thermalloy Incorporated
    Inventor: Donald L. Clemens
  • Patent number: 5019940
    Abstract: Disclosed is apparatus for mounting an electronic device package on a printed circuit board or the like. The apparatus includes a frame for receiving the electronic device package with the leads of the electronic device package presented for solderable connection to preformed locations on the printed circuit board. Solderable means are provided to mount the frame and the electronic device package on the printed circuit board. A clip engaging a heat sink is secured to the frame to urge the heat sink into intimate thermal contact with the electronic device package.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: May 28, 1991
    Assignee: Thermalloy Incorporated
    Inventor: Donald L. Clemens
  • Patent number: 4962442
    Abstract: A stanchion having a base with holes passing therethrough is used to hold elongated electronic device packages in a vertical position during assembly of a circuit board. The leads extending from the end of the device package are positioned in the holes in the base and the device package retained in the vertical position by attachment arms extending upwardly from opposite sides of the base defining a cavity for receiving the device package. Legs extending from the base support the device package above the surface of the circuit board to permit cleaning of the assembly.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: October 9, 1990
    Assignee: Thermalloy Incorporated
    Inventor: Donald L. Clemens
  • Patent number: 4961125
    Abstract: Disclosed are apparatus and methods for attaching an electronic device package and a heat sink to a circuit board or the like. The electronic device package has a body with a planar bottom and leads extending from the body. The distal ends of the leads are coplanar with the bottom of the electronic device package. The heat sink has a base, heat-dissipating fins or the like and a clip for securing the electronic device package to the heat sink. A pair of dimples project downward from the base of the heat sink to tilt the bottom of the electronic device package. Tilting the electronic device package causes the ends of the leads to contact the circuit board so that the leads can be easily soldered to the circuit board. The dimples and the front edge of the heat sink can also be soldered to the circuit board.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: October 2, 1990
    Assignee: Thermalloy Incorporated
    Inventors: William D. Jordan, Donald L. Clemens
  • Patent number: 4847449
    Abstract: Alignment apparatus for receiving, aligning and retaining the pin connectors of an electronic component package in predetermined relationship is used to maintain proper alignment of the pin connectors with preformed holes or mounting pads on a printed circuit board or the like when the sub-assembly of a heat sink and an electronic component package is mounted on a printed circuit board or the like.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: July 11, 1989
    Assignee: Thermalloy Incorporated
    Inventors: William D. Jordan, Donald L. Clemens
  • Patent number: 4745456
    Abstract: Disclosed is a heat sink clip assembly comprising a frame and a clip for securing and aligning a heat sink with an electronic device package. The frame includes a cavity for receiving the electronic device package with the leads thereof exposed for mounting on a printed circuit board or the like. A resilient heat sink clip is removably engaged with a pair of latching members on the perimeter of the frame. The clip includes means for releasably gripping the heat sink. The heat sink is urged by the heat sink clip into intimate thermal contact with the electronic device package for dissipation of heat therefrom.
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: May 17, 1988
    Assignee: Thermalloy Incorporated
    Inventor: Donald L. Clemens
  • Patent number: 4712159
    Abstract: Disclosed is a heat sink clip assembly for releaseably attaching a heat sink to a DIP or similar electronic device package. The clip assembly includes a non-conductive attachment clip which extends between the leads on the underside of the DIP and means for latching the attachment clip to a heat sink disposed adjacent the opposite side of the electronic device package with the heat sink in intimate thermal contact with the electronic device package.
    Type: Grant
    Filed: July 17, 1986
    Date of Patent: December 8, 1987
    Assignee: Thermalloy Incorporated
    Inventor: Donald L. Clemens
  • Patent number: 4709302
    Abstract: Disclosed is apparatus for mounting electronic device packages and heat sinks on printed circuit boards with the pin connectors of the electronic device package held in alignment with preformed locations on the printed circuit boards. The alignment apparatus includes means for securing the electronic device package in intimate thermal contact with the heat sink for rapid dissipation of heat therefrom.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: November 24, 1987
    Assignee: Thermalloy Incorporated
    Inventors: William D. Jordan, Donald L. Clemens
  • Patent number: 4625260
    Abstract: A fastener is provided for mounting a heat sink to the surface of a circuit board. The fastener includes a body having structure extending from the body for engaging the heat sink. The body further includes structure extending in a direction opposite the engaging structure for contacting the surface of the circuit board. The contacting structure includes a surface parallel to the surface of the circuit board and is coated with a solder-promoting material for surface mounting the heat sink to the circuit board.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: November 25, 1986
    Assignee: Thermalloy Incorporated
    Inventors: William D. Jordan, Donald L. Clemens
  • Patent number: 4446504
    Abstract: Disclosed is means for mounting semiconductor device cases on mounting substrates such as circuit boards. The mounting means includes studs passing transversely through the body of the mounting means for mounting a semiconductor case or semiconductor case and heat sink on one side of the body. The opposite ends of the studs are coated with a solder-promoting material so that the studs may be soldered directly to the circuit board. The body may include electrically conductive pin receptacles for mating with pins extending from the semiconductor case. The pin receptacles have solderable shanks extending from the opposite side of the socket body. Stand-off bosses are also disclosed for spacing the mounting body from the surface of the circuit board and for spacing the heat sink from the surface of the mounting body.
    Type: Grant
    Filed: September 13, 1983
    Date of Patent: May 1, 1984
    Assignee: Thermalloy Incorporated
    Inventors: William D. Jordan, Howard G. Hinshaw, Donald L. Clemens
  • Patent number: D261354
    Type: Grant
    Filed: February 11, 1980
    Date of Patent: October 20, 1981
    Assignee: Thermalloy Incorporated
    Inventor: Donald L. Clemens
  • Patent number: RE35573
    Abstract: Disclosed is a heat sink clip assembly comprising a frame and a clip for securing and aligning a heat sink with an electronic device package. The frame includes a cavity for receiving the electronic device package with the leads thereof exposed for mounting on a printed circuit board or the like. A resilient heat sink clip is removably engaged with a pair of latching members on the perimeter of the frame. The clip includes means for releasably gripping the heat sink. The heat sink is urged by the heat sink clip into intimate thermal contact with the electronic device package for dissipation of heat therefrom.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: July 29, 1997
    Assignee: Thermalloy, Inc.
    Inventor: Donald L. Clemens