US3812557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holding clamp
Assignee: Eaton Corp
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Filing: 1973-02-05
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Granted: 1974-05-28
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Expires: 1993-02-05
Abstract
Abstract A holding clamp for clamping a thyristor between a pair of heat sinks. The clamp includes spaced clamping and base plates on opposite sides of the heat sinks. The plates are held together by a pair of spaced bolts secured to the base plate and in sliding engagement with the clamping plate. A center bolt is in threaded engagement with the clamping plate and aligned with and located between the spaced bolts. A pad is mounted for universal movement on one end of the center bolt and is engaged with a heat sink. A slot is located in the clamping plate and aligned with the axis of the center bolt. Upon rotation of the center bolt, the sides of the slot close an amount corresponding to the clamping force on the thyristor, thereby increasing the torque needed to turn the center bolt within the clamping plate.
Inventors
- 👤 L Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:41
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/60; H10W40/611; H10W72/00; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44966; Y10T24/44974
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
176 words
A holding clamp for clamping a heat generating device between a pair of heat dissipating plates, the holding clamp comprising: a clamping plate; a base plate adapted for supporting one of the heat dissipating plates, the clamping and base plates being adapted to be located on opposite sides of the heat dissipating plates; means, including a pair of spaced members interconnecting the clamping and base plates, 1. for retaining the clamping and base plates relative to one another, and 2. for holding the heat dissipating plates between the clamping and base plates; a threaded fastener 1. in threaded engagement with the clamping plate, and 2. located intermediate the pair of spaced members for engagement with the other heat dissipating plate whereby a force is exerted on the other heat dissipating plate in response to rotation of the threaded fastener relative to the clamping plate; and means defining a slot 1. traversing the clamping plate, 2. substantially aligned with the axis of the threaded fastener, and 3. opening toward the location of the other heat dissipating plate.
Claim 2
Dependent Claim
176 words
A holding clamp for clamping a heat generating device between a pair of heat dissipating plates, the holding clamp comprising: a clamping plate; a base plate adapted for supporting one of the heat dissipating plates, the clamping and base plates being adapted to be located on opposite sides of the heat dissipating plates; means, including a pair of spaced members interconnecting the clamping and base plates, 1. for retaining the clamping and base plates relative to one another, and 2. for holding the heat dissipating plates between the clamping and base plates; a threaded fastener 1. in threaded engagement with the clamping plate, and 2. located intermediate the pair of spaced members for engagement with the other heat dissipating plate whereby a force is exerted on the other heat dissipating plate in response to rotation of the threaded fastener relative to the clamping plate; and means defining a slot 1. traversing the clamping plate, 2. substantially aligned with the axis of the threaded fastener, and 3. opening toward the location of the other heat dissipating plate.
Claim 3
Dependent Claim
15 words
for holding the heat dissipating plates between the clamping and base plates; a threaded fastener
Claim 4
Dependent Claim
15 words
for holding the heat dissipating plates between the clamping and base plates; a threaded fastener
Claim 5
Dependent Claim
44 words
located intermediate the pair of spaced members for engagement with the other heat dissipating plate whereby a force is exerted on the other heat dissipating plate in response to rotation of the threaded fastener relative to the clamping plate; and means defining a slot
Claim 6
Dependent Claim
44 words
located intermediate the pair of spaced members for engagement with the other heat dissipating plate whereby a force is exerted on the other heat dissipating plate in response to rotation of the threaded fastener relative to the clamping plate; and means defining a slot
Claim 7
Dependent Claim
10 words
substantially aligned with the axis of the threaded fastener, and
Claim 8
Dependent Claim
10 words
substantially aligned with the axis of the threaded fastener, and
Claim 9
Dependent Claim
32 words
A holding clamp according to claim 1 further including a pad mounted for universal movement on one end of the threaded fastener and located for engagement with the other heat dissipating plate.
Claim 10
Dependent Claim
23 words
located in a portion of the clamping plate at an angle, other than 180*, relative to the vectorial direction of the compressive stresses.
Claim 11
Dependent Claim
23 words
located in a portion of the clamping plate at an angle, other than 180*, relative to the vectorial direction of the compressive stresses.
Claim 12
Dependent Claim
15 words
located intermediate the pair of members; and means defining a slot in the clamping plate
Claim 13
Dependent Claim
15 words
located intermediate the pair of members; and means defining a slot in the clamping plate
Claim 14
Dependent Claim
72 words
for limiting the maximum distance that the clamping plate can be moved away from the base plate; clamping means, including a threaded fastener, for exerting a force on the base plate in a direction to move the base plate away from the clamping plate in response to rotation of the threaded fastener relatIve to the clamping plate while exerting compressive stresses over a portion of the clamping plate, said threaded fastener being
Claim 15
Dependent Claim
72 words
for limiting the maximum distance that the clamping plate can be moved away from the base plate; clamping means, including a threaded fastener, for exerting a force on the base plate in a direction to move the base plate away from the clamping plate in response to rotation of the threaded fastener relatIve to the clamping plate while exerting compressive stresses over a portion of the clamping plate, said threaded fastener being
Claim 16
Dependent Claim
62 words
means securing the first and second plates together in abutting relationship along the faces in which the grooves are defined to form a single member having three passages defined by the grooves; a member located within each end passages in the clamping plate and adapted to be engaged with the base plate; and a fastener in threaded engagement with the center passage.
Claim 17
Dependent Claim
62 words
means securing the first and second plates together in abutting relationship along the faces in which the grooves are defined to form a single member having three passages defined by the grooves; a member located within each end passages in the clamping plate and adapted to be engaged with the base plate; and a fastener in threaded engagement with the center passage.
Claim 18
Dependent Claim
38 words
A holding clamp according to claim 1 wherein the pair of spaced members are fasteners having threaded ends in threaded engagement with the base plate and another portion in sliding engagement with spaced openings in the clamping plate.
Claim 19
Dependent Claim
10 words
opening toward the location of the other heat dissipating plate.
Claim 20
Dependent Claim
10 words
opening toward the location of the other heat dissipating plate.
Claim 21
Dependent Claim
58 words
A holding clamp according to claim 3 wherein the clamping plate comprises a pair of sheet metal members secured together and defining the spaced openings and a center opening substantially equal distance from the spaced openings and in alignment therewith, the center opening being threaded for threaded engagement with the threaded fastener located intermediate the pair of fasteners.
Claim 22
Dependent Claim
19 words
A holding clamp for clamping an object against a base plate, the holding clamp comprising: a clamping plate including
Claim 23
Dependent Claim
19 words
A holding clamp for clamping an object against a base plate, the holding clamp comprising: a clamping plate including
Claim 24
Dependent Claim
33 words
A holding clamp according to claim 5 further including means defining at least one slot in each plate extending between the opposite faces and across at least a portion of each center protrusion.
Claim 25
Dependent Claim
30 words
A holding clamp for clamping an object against a base plate, the holding clamp comprising: a clamping plate; means, including a pair of spaced members engaged with the clamping plate,
Claim 26
Dependent Claim
30 words
A holding clamp for clamping an object against a base plate, the holding clamp comprising: a clamping plate; means, including a pair of spaced members engaged with the clamping plate,
Claim 27
Dependent Claim
44 words
A holding clamp according to claim 7 wherein: the pair of members are threaded fasteners in sliding engagement with at least one of the plates; and the threaded fastener mounted relative to the clamping plate is in alignment with the pair of threaded fasteners.
Claim 28
Dependent Claim
34 words
A holding clamp according to claim 8 wherein the threaded fastener mounted relative to the clamping plate further includes a pad mounted for universal movement and for exerting a force on the base plate.
Claim 29
Dependent Claim
53 words
A holding clamp according to claim 3 wherein the clamping plate comprises a pair of sheet metal members secured together and each including spaced outer semicircular openings for receiving the pair of threaded fasteners and a threaded center semicircular opening for receiving the threaded fastener mounted for rotation relative to the clamping plate.
Claim 30
Dependent Claim
48 words
A holding clamp according to claim 7 wherein: the clamping plate comprises a substantially planar member generally coplanar with the lengthwise axis of said threaded fastener; and the slot is in the clamping plate and extends in a direction generally parallel to the axis of the threaded fastener.
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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |