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).
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Patent number: 6966363Abstract: 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: GrantFiled: October 10, 2002Date of Patent: November 22, 2005Assignee: Aavid Thermolloy, LLCInventors: David W Gailus, Donald L. Clemens
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Publication number: 20040188080Abstract: 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: ApplicationFiled: April 8, 2004Publication date: September 30, 2004Inventors: David W Gailus, Donald L Clemens
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Patent number: 6178628Abstract: 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: GrantFiled: September 11, 1998Date of Patent: January 30, 2001Assignee: Aavid Thermalloy, LLCInventors: Donald L. Clemens, Mark Mellinger, Gary Kuzmin
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Patent number: 6082440Abstract: 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: GrantFiled: February 6, 1998Date of Patent: July 4, 2000Assignee: Thermalloy, IncorporatedInventors: Donald L. Clemens, Michael M. Heatly, Matthew C. Smithers, Mark C. Mellinger
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Patent number: 5991154Abstract: 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: GrantFiled: January 6, 1999Date of Patent: November 23, 1999Assignee: Thermalloy, Inc.Inventors: Donald L. Clemens, Steven F. Edwards
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Patent number: 5917700Abstract: 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: GrantFiled: September 16, 1997Date of Patent: June 29, 1999Assignees: Lucent Technologies Inc, Thermalloy Inc.Inventors: Donald L. Clemens, Theophilus Ifeanyi Ejim, Kon Mang Lin, Ralph E. Stenerson
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Patent number: 5371652Abstract: 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: GrantFiled: April 5, 1994Date of Patent: December 6, 1994Assignee: Thermalloy, Inc.Inventors: Donald L. Clemens, Keith Mandell
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Patent number: 5038858Abstract: 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: GrantFiled: March 13, 1990Date of Patent: August 13, 1991Assignee: Thermalloy IncorporatedInventors: William D. Jordan, Donald L. Clemens
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Patent number: 5019942Abstract: 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: GrantFiled: February 29, 1988Date of Patent: May 28, 1991Assignee: Thermalloy IncorporatedInventor: Donald L. Clemens
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Patent number: 5019940Abstract: 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: GrantFiled: December 3, 1987Date of Patent: May 28, 1991Assignee: Thermalloy IncorporatedInventor: Donald L. Clemens
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Patent number: 4962442Abstract: 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: GrantFiled: March 30, 1990Date of Patent: October 9, 1990Assignee: Thermalloy IncorporatedInventor: Donald L. Clemens
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Patent number: 4961125Abstract: 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: GrantFiled: August 18, 1989Date of Patent: October 2, 1990Assignee: Thermalloy IncorporatedInventors: William D. Jordan, Donald L. Clemens
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Patent number: 4847449Abstract: 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: GrantFiled: June 16, 1988Date of Patent: July 11, 1989Assignee: Thermalloy IncorporatedInventors: William D. Jordan, Donald L. Clemens
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Patent number: 4745456Abstract: 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: GrantFiled: September 11, 1986Date of Patent: May 17, 1988Assignee: Thermalloy IncorporatedInventor: Donald L. Clemens
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Patent number: 4712159Abstract: 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: GrantFiled: July 17, 1986Date of Patent: December 8, 1987Assignee: Thermalloy IncorporatedInventor: Donald L. Clemens
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Patent number: 4709302Abstract: 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: GrantFiled: December 16, 1986Date of Patent: November 24, 1987Assignee: Thermalloy IncorporatedInventors: William D. Jordan, Donald L. Clemens
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Patent number: 4625260Abstract: 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: GrantFiled: August 24, 1984Date of Patent: November 25, 1986Assignee: Thermalloy IncorporatedInventors: William D. Jordan, Donald L. Clemens
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Patent number: 4446504Abstract: 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: GrantFiled: September 13, 1983Date of Patent: May 1, 1984Assignee: Thermalloy IncorporatedInventors: William D. Jordan, Howard G. Hinshaw, Donald L. Clemens
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Patent number: D261354Type: GrantFiled: February 11, 1980Date of Patent: October 20, 1981Assignee: Thermalloy IncorporatedInventor: Donald L. Clemens
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Patent number: RE35573Abstract: 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: GrantFiled: April 2, 1990Date of Patent: July 29, 1997Assignee: Thermalloy, Inc.Inventor: Donald L. Clemens