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US4625260A Expired / Lapsed US ⏱️ 0.0 years remaining

Fasteners for surface mounting of printed circuit board components

Assignee: Aavid Thermalloy LLC
•
Filing: 1984-08-24
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Granted: 1986-11-25
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Expires: 2004-08-24
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Abstract

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.

Inventors

  • 👤 William D. Jordan
  • 👤 Donald L. Clemens

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 08:18
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/60; H10W40/641; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/341; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/4913; Y10T29/49144

Claims Analysis

Total Claims: 48
Claim 1
Independent Claim 77 words
A fastener for mounting a heat sink to the surface of a circuit board comprising: a body; first means extending from said body for detachably engaging the heat sink; second means extending from said body opposite said first means for contacting the surface of the circuit board; and said second means including a surface parallel to the surface of the circuit board when said body is mounted thereon, and said surface being coated with a solder-promoting material.
Claim 2
Dependent Claim 77 words
A fastener for mounting a heat sink to the surface of a circuit board comprising: a body; first means extending from said body for detachably engaging the heat sink; second means extending from said body opposite said first means for contacting the surface of the circuit board; and said second means including a surface parallel to the surface of the circuit board when said body is mounted thereon, and said surface being coated with a solder-promoting material.
Claim 3
Dependent Claim 32 words
The fastener of claim 1 wherein said first means includes: a plurality of fingers and said second means includes a support member disposed perpendicular to said body and said plurality of fingers.
Claim 4
Dependent Claim 39 words
The fastener of claim 1, wherein said first means includes: a shank adapted for being received by an aperture within the heat sink and said second means includes a support member disposed perpendicular to the axis of said shank.
Claim 5
Dependent Claim 51 words
The fastener of claim 1, wherein said body comprises: a U shaped channel member and said first means includes the vertical members of said U-shaped member adapted for engaging an aperture in the heat sink and said second means comprises the base of said U-shaped channel member interconnecting said vertical members.
Claim 6
Dependent Claim 50 words
The fastener of claim 1, wherein said body comprises: an elongated shaft having first and second ends, said first means comprising said first end of said elongated shaft adapted to extending through an aperture in the heat sink and said second means comprising said second end of said elongated shaft.
Claim 7
Dependent Claim 141 words
A solderable stake for a heat sink comprising: a body having a vertical member including first and second ends; a base member transverse to said vertical member first end and being supported on one side by said vertical member; a support member parallel to said base member and transverse to said vertical member second end for supporting said body; a plurality of parallel fingers extending from said base member parallel to said vertical member and being disposed at an opposite side of said base member from said vertical member with said vertical member and said fingers extending in opposite directions from said base member; at least one of said fingers being displaced from the other fingers to form with said base member a channel adapted to receive the heat sink; and a solder-promoting coating on said support member of said body.
Claim 8
Dependent Claim 141 words
A solderable stake for a heat sink comprising: a body having a vertical member including first and second ends; a base member transverse to said vertical member first end and being supported on one side by said vertical member; a support member parallel to said base member and transverse to said vertical member second end for supporting said body; a plurality of parallel fingers extending from said base member parallel to said vertical member and being disposed at an opposite side of said base member from said vertical member with said vertical member and said fingers extending in opposite directions from said base member; at least one of said fingers being displaced from the other fingers to form with said base member a channel adapted to receive the heat sink; and a solder-promoting coating on said support member of said body.
Claim 9
Dependent Claim 22 words
The solderable stake of claim 6 wherein the ends of said fingers opposite said base member are flared outwardly from said channel.
Claim 10
Dependent Claim 31 words
The solderable stake of claim 6 wherein at least one of said fingers includes a barb extending therefrom into said channel adapted to retain a heat sink body within said channel.
Claim 11
Dependent Claim 185 words
A solderable stake for mounting a heat sink to the surface of a circuit board comprising: a body having a first member including first and second ends and adapted for being disposed perpendicularly to the surface of the printed circuit board when said body is mounted thereon; a second member transverse to said first member first end and being supported by said first member and being disposed parallel to the surface of the circuit board when said body is mounted thereon; a third member parallel to said second member and transverse to said first member second end and being disposed parallel to the surface of the circuit board when said body is mounted thereon and adapted for contacting the surface of the circuit board and thereby supporting the body on the circuit board; a plurality of fingers extending from said second member, such that said plurality of fingers and said first member extend in opposite directions from said second member; said plurality of fingers and said second member forming a channel adapted to receive the heat sink; and a solder-promoting coating on said third member.
Claim 12
Dependent Claim 185 words
A solderable stake for mounting a heat sink to the surface of a circuit board comprising: a body having a first member including first and second ends and adapted for being disposed perpendicularly to the surface of the printed circuit board when said body is mounted thereon; a second member transverse to said first member first end and being supported by said first member and being disposed parallel to the surface of the circuit board when said body is mounted thereon; a third member parallel to said second member and transverse to said first member second end and being disposed parallel to the surface of the circuit board when said body is mounted thereon and adapted for contacting the surface of the circuit board and thereby supporting the body on the circuit board; a plurality of fingers extending from said second member, such that said plurality of fingers and said first member extend in opposite directions from said second member; said plurality of fingers and said second member forming a channel adapted to receive the heat sink; and a solder-promoting coating on said third member.
Claim 13
Dependent Claim 145 words
A combination comprising: a heat sink; a circuit board; a solderable stake for mounting said heat sink to the surface of said circuit board; said stake comprising a first member including first and second ends and being disposed perpendicular to the surface of the circuit board; said stake further including a second member transverse to said first member first end and being supported by said first member and being disposed parallel to the surface of said circuit board; said stake further including a third member parallel to said second member and transverse to said first member second end and being disposed parallel to the surface of said circuit board for contacting the surface of the circuit board to thereby support said stake on the circuit board; and a solder-promoting coating on said third member for soldering said stake to the surface of said circuit board.
Claim 14
Dependent Claim 145 words
A combination comprising: a heat sink; a circuit board; a solderable stake for mounting said heat sink to the surface of said circuit board; said stake comprising a first member including first and second ends and being disposed perpendicular to the surface of the circuit board; said stake further including a second member transverse to said first member first end and being supported by said first member and being disposed parallel to the surface of said circuit board; said stake further including a third member parallel to said second member and transverse to said first member second end and being disposed parallel to the surface of said circuit board for contacting the surface of the circuit board to thereby support said stake on the circuit board; and a solder-promoting coating on said third member for soldering said stake to the surface of said circuit board.
Claim 15
Dependent Claim 72 words
A solderable stake for a heat sink comprising: a body having a vertical member including first and second ends; a cylindrical shank extending from said vertical member first end and having an axis parallel to said vertical member; a support member extending from said vertical member second end and being perpendicular to said vertical member and perpendicular to said axis of said cylindrical shank; and a solder-promoting coating on said support member.
Claim 16
Dependent Claim 72 words
A solderable stake for a heat sink comprising: a body having a vertical member including first and second ends; a cylindrical shank extending from said vertical member first end and having an axis parallel to said vertical member; a support member extending from said vertical member second end and being perpendicular to said vertical member and perpendicular to said axis of said cylindrical shank; and a solder-promoting coating on said support member.
Claim 17
Dependent Claim 91 words
A solderable stake for mounting an device to the surface of a circuit board comprising: a cylindrical shank having first and second ends, said first end being adapted for insertion into an aperture in the device, said shank having an axis perpendicular to the surface of the circuit board when mounted thereon; support means extending from said second end of said shank and being perpendicular to said axis and parallel to the surface of the circuit board when said shank is mounted thereon; and a solder-promoting coating on said support means.
Claim 18
Dependent Claim 91 words
A solderable stake for mounting an device to the surface of a circuit board comprising: a cylindrical shank having first and second ends, said first end being adapted for insertion into an aperture in the device, said shank having an axis perpendicular to the surface of the circuit board when mounted thereon; support means extending from said second end of said shank and being perpendicular to said axis and parallel to the surface of the circuit board when said shank is mounted thereon; and a solder-promoting coating on said support means.
Claim 19
Dependent Claim 84 words
A fastener for mounting a heat sink to the surface of a circuit board comprising: a U-shaped channel member including a pair of parallel vertical members having top and bottom ends, said bottom ends thereof being interconnected by a perpendicularly disposed base member being parallel to the surface of the circuit board when said channel member is mounted thereon; said top ends of said vertical members adapted for insertion into an aperture in the heat sink; and said base member including a solder-promoting coating.
Claim 20
Dependent Claim 84 words
A fastener for mounting a heat sink to the surface of a circuit board comprising: a U-shaped channel member including a pair of parallel vertical members having top and bottom ends, said bottom ends thereof being interconnected by a perpendicularly disposed base member being parallel to the surface of the circuit board when said channel member is mounted thereon; said top ends of said vertical members adapted for insertion into an aperture in the heat sink; and said base member including a solder-promoting coating.
Claim 21
Dependent Claim 22 words
The fastener of claim 13 wherein said vertical members top ends include means adapted for locking the fastener to the heat sink.
Claim 22
Dependent Claim 28 words
The fastener of claim 13 wherein said vertical members include shoulder means adapted for supporting the heat sink above the surface of the circuit board a predetermined amount.
Claim 23
Dependent Claim 108 words
The combination comprising: a heat sink including a substantially flat base portion; at least one mounting stud having parallel top and bottom surfaces and an elongated shaft with a radially enlarged flange extending radially therefrom near one end thereof defining a shaft with a longer portion on one side of said flange and a shorter portion on the opposite side of said flange, the longer portion of said shaft extending through said flat base portion of said heat sink; said bottom surface of said stud having a solder-promoting coating; and a circuit board with said bottom surface of said stud soldered to the surface of said circuit board.
Claim 24
Dependent Claim 108 words
The combination comprising: a heat sink including a substantially flat base portion; at least one mounting stud having parallel top and bottom surfaces and an elongated shaft with a radially enlarged flange extending radially therefrom near one end thereof defining a shaft with a longer portion on one side of said flange and a shorter portion on the opposite side of said flange, the longer portion of said shaft extending through said flat base portion of said heat sink; said bottom surface of said stud having a solder-promoting coating; and a circuit board with said bottom surface of said stud soldered to the surface of said circuit board.
Claim 25
Dependent Claim 16 words
The combination set forth in claim 16 wherein the longer portion of said shaft is threaded.
Claim 26
Dependent Claim 41 words
The combination of claim 16 wherein the longer portion of said shaft includes an enlarged section adjacent said flange which mates with a hole in said base portion of said heat sink and secures said stud to said flat base portion.
Claim 27
Independent Claim 109 words
The method of attaching a semiconductor case to a circuit board comprising the steps of: attaching the semiconductor case to at least one stud passing through the semiconductor case, the stud comprising a cylindrical shaft with a radially enlarged flange extending therefrom intermediate the ends thereof, the portion of the shaft extending in a first direction from the flange passing through the semiconductor case and at least the end portion of the portion of the shaft extending in an opposite direction from the flange coated with a solder-promoting material; and soldering the end portion of the shaft extending in the opposite direction from the flange to the circuit board.
Claim 28
Independent Claim 109 words
The method of attaching a semiconductor case to a circuit board comprising the steps of: attaching the semiconductor case to at least one stud passing through the semiconductor case, the stud comprising a cylindrical shaft with a radially enlarged flange extending therefrom intermediate the ends thereof, the portion of the shaft extending in a first direction from the flange passing through the semiconductor case and at least the end portion of the portion of the shaft extending in an opposite direction from the flange coated with a solder-promoting material; and soldering the end portion of the shaft extending in the opposite direction from the flange to the circuit board.
Claim 29
Dependent Claim 79 words
A combination comprising: a heat sink including a substantially flat base portion; at least one mounting stud comprising an elongated shaft with a radially enlarged flange extending radially therefrom near one end thereof, said shaft extending through said flat base portion of said heat sink and at least the bottom portion of said flange being coated with a solder-promoting material; and a circuit board with said bottom surface of said flange soldered to the surface of said circuit board.
Claim 30
Dependent Claim 79 words
A combination comprising: a heat sink including a substantially flat base portion; at least one mounting stud comprising an elongated shaft with a radially enlarged flange extending radially therefrom near one end thereof, said shaft extending through said flat base portion of said heat sink and at least the bottom portion of said flange being coated with a solder-promoting material; and a circuit board with said bottom surface of said flange soldered to the surface of said circuit board.
Claim 31
Dependent Claim 79 words
A combination comprising: a heat sink; a circuit board; a body; first means extending from said body for detachably engaging with said heat sink; second means extending from said body opposite said first means for contacting a surface of said circuit board; and said second means including a surface parallel to the surface of said circuit board and said surface of said second means being coated with a solder-promoting material and soldered on a surface of said circuit board.
Claim 32
Dependent Claim 79 words
A combination comprising: a heat sink; a circuit board; a body; first means extending from said body for detachably engaging with said heat sink; second means extending from said body opposite said first means for contacting a surface of said circuit board; and said second means including a surface parallel to the surface of said circuit board and said surface of said second means being coated with a solder-promoting material and soldered on a surface of said circuit board.
Claim 33
Dependent Claim 164 words
A combination comprising: a heat sink; a circuit board; a body having a vertical member including first and second ends, a base member transverse to said vertical member first end and being supported on one side by said vertical member, a support member parallel to said base member and transverse to said vertical member second end, said support member including a solder-producing coating and being soldered on a surface of said circuit board, a plurality of parallel fingers extending from said base member parallel to said vertical member and being disposed at an opposite side of said base member from said vertical member with said vertical member and said fingers extending in opposite directions from said base member, at least one of said fingers being displaced from the other fingers to form with said base member a channel, whereby said heat sink is received within said channel and resiliently gripped by said fingers so as to support said heat sink on said circuit board.
Claim 34
Dependent Claim 164 words
A combination comprising: a heat sink; a circuit board; a body having a vertical member including first and second ends, a base member transverse to said vertical member first end and being supported on one side by said vertical member, a support member parallel to said base member and transverse to said vertical member second end, said support member including a solder-producing coating and being soldered on a surface of said circuit board, a plurality of parallel fingers extending from said base member parallel to said vertical member and being disposed at an opposite side of said base member from said vertical member with said vertical member and said fingers extending in opposite directions from said base member, at least one of said fingers being displaced from the other fingers to form with said base member a channel, whereby said heat sink is received within said channel and resiliently gripped by said fingers so as to support said heat sink on said circuit board.
Claim 35
Dependent Claim 128 words
A combination comprising: a heat sink; a circuit board; at least one solderable stake soldered to a surface on said circuit board and having a vertical member including first and second ends, a cylindrical shank extending from said vertical member first end and having an axis parallel to said vertical member, said shank being inserted into an aperture in said heat sink so as to secure said heat sink to a surface on said circuit board, a support member including a solder-promoting coating thereon, and extending from said vertical member second end and being perpendicular to said vertical member and said axis of said cylindrical shank and parallel to said surface of said circuit board and soldered thereto, whereby said heat sink is mounted on said circuit board.
Claim 36
Dependent Claim 128 words
A combination comprising: a heat sink; a circuit board; at least one solderable stake soldered to a surface on said circuit board and having a vertical member including first and second ends, a cylindrical shank extending from said vertical member first end and having an axis parallel to said vertical member, said shank being inserted into an aperture in said heat sink so as to secure said heat sink to a surface on said circuit board, a support member including a solder-promoting coating thereon, and extending from said vertical member second end and being perpendicular to said vertical member and said axis of said cylindrical shank and parallel to said surface of said circuit board and soldered thereto, whereby said heat sink is mounted on said circuit board.
Claim 37
Dependent Claim 109 words
A combination comprising: a heat sink; a circuit board; a solderable stake for mounting the heat sink to a surface of the circuit board, said solderable stake having a cylindrical shank having first and second ends, said first end being disposed through an aperture in said heat sink, said shank having an axis perpendicular to the surface of said circuit board, support means extending from said second end of said shank and being perpendicular to said axis and parallel and in contact with the surface of the circuit board; and a solder-promoting coating on said support means, said support means being soldered to said surface of said circuit board.
Claim 38
Dependent Claim 109 words
A combination comprising: a heat sink; a circuit board; a solderable stake for mounting the heat sink to a surface of the circuit board, said solderable stake having a cylindrical shank having first and second ends, said first end being disposed through an aperture in said heat sink, said shank having an axis perpendicular to the surface of said circuit board, support means extending from said second end of said shank and being perpendicular to said axis and parallel and in contact with the surface of the circuit board; and a solder-promoting coating on said support means, said support means being soldered to said surface of said circuit board.
Claim 39
Dependent Claim 109 words
A combination comprising: a heat sink; a circuit board; a fastener for mounting said heat sink to a surface of said circuit board, said fastener having a U-shaped channel member including a pair of parallel vertical members having top and bottom ends, said bottom ends thereof being interconnected by a perpendicularly disposed base member being parallel to and in contact with said surface of said circuit board, said top ends of said vertical members being disposed through an aperture in said heat sink; and said base member including a solder-promoting coating and being soldered to said surface of said circuit board so as to support said heat sink thereon.
Claim 40
Dependent Claim 109 words
A combination comprising: a heat sink; a circuit board; a fastener for mounting said heat sink to a surface of said circuit board, said fastener having a U-shaped channel member including a pair of parallel vertical members having top and bottom ends, said bottom ends thereof being interconnected by a perpendicularly disposed base member being parallel to and in contact with said surface of said circuit board, said top ends of said vertical members being disposed through an aperture in said heat sink; and said base member including a solder-promoting coating and being soldered to said surface of said circuit board so as to support said heat sink thereon.
Claim 41
Dependent Claim 13 words
The solderable stake of claim 12 wherein the device is a heat sink.
Claim 42
Dependent Claim 12 words
The solderable stake of claim 12 wherein the device is a socket.
Claim 43
Dependent Claim 81 words
A fastener for mounting a heat sink to the surface of a circuit board comprising: a body; first means extending from said body for detachably engaging the heat sink; second means extending from said body opposite said first means for contacting the surface of the circuit board; and said second means including a surface parallel to the surface of the circuit board when said body is mounted thereon, said surface being adapted for bonding to the surface of the circuit board.
Claim 44
Dependent Claim 81 words
A fastener for mounting a heat sink to the surface of a circuit board comprising: a body; first means extending from said body for detachably engaging the heat sink; second means extending from said body opposite said first means for contacting the surface of the circuit board; and said second means including a surface parallel to the surface of the circuit board when said body is mounted thereon, said surface being adapted for bonding to the surface of the circuit board.
Claim 45
Dependent Claim 32 words
The fastener of claim 28 wherein said first means includes: a plurality of fingers and said second means includes a support member disposed perpendicular to said body and said plurality of fingers.
Claim 46
Dependent Claim 39 words
The fastener of claim 28, wherein said first means includes: a shank adapted for being received by an aperture within the heat sink and said second means includes a support member disposed perpendicular to the axis of said shank.
Claim 47
Dependent Claim 50 words
The fastener of claim 28, wherein said body comprises: a U-shaped channel member and said first means includes the vertical members of said U-shaped member adapted for engaging an aperture in the heat sink and said second means comprises the base of said U-shaped channel member interconnecting said vertical members.
Claim 48
Dependent Claim 50 words
The fastener of claim 28, wherein said body comprises: an elongated shaft having first and second ends, said first means comprising said first end of said elongated shaft adapted for extending through an aperture in the heat sink and said second means comprising said second end of said elongated shaft.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-11-24 1990-05-26 1990-11-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-11-24 1994-05-26 1994-11-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-11-24 1998-05-26 1998-11-25 $7700.00 Window Closed / Lapsed

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