Patent US5310299A successfully refreshed from Google Patents.
US5310299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding clamp
Assignee: Kurt Manufacturing Co Inc
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Filing: 1992-09-01
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Granted: 1994-05-10
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Expires: 2012-09-01
Abstract
Abstract A device for holding a workpiece or part in a desired position. The device has a platen with a stop, a threaded shank actuator and a sliding clamping member. The actuator has a tapered head which engages a conical bore of the sliding clamping member simultaneously to apply clamping forces against a workpiece and securing forces to anchor the sliding clamp member to the platen.
Inventors
- 👤 Leon M. Bernstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:24
CPC Classifications
B; B25; B25B; B25B5/00; B25B5/06; B25B5/08; B25B5/10; F; F16; F16B; F16B2/00; F16B2/02; F16B5/00; F16B5/02; F16B5/025
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
125 words
A clamping device for holding a workpiece comprising: a platen having a working surface including a stop; a clamping member having a sliding face adapted for sliding movement along the platen working surface and at least one clamping face adapted to engage a workpiece; and actuating means for simultaneously anchoring the clamping member to the platen on the platen working surface while moving the clamping member toward the stop, wherein the actuating means is secured into the platen along a fixed reference axis intersecting with the platen working surface and includes a tapered bearing surface engaging the clamping member wherein the simultaneous anchoring and moving is caused only by movement of the tapered bearing surface toward the platen working surface parallel to the reference axis.
Claim 2
Dependent Claim
125 words
A clamping device for holding a workpiece comprising: a platen having a working surface including a stop; a clamping member having a sliding face adapted for sliding movement along the platen working surface and at least one clamping face adapted to engage a workpiece; and actuating means for simultaneously anchoring the clamping member to the platen on the platen working surface while moving the clamping member toward the stop, wherein the actuating means is secured into the platen along a fixed reference axis intersecting with the platen working surface and includes a tapered bearing surface engaging the clamping member wherein the simultaneous anchoring and moving is caused only by movement of the tapered bearing surface toward the platen working surface parallel to the reference axis.
Claim 3
Dependent Claim
13 words
The device of claim 1 wherein the stop is unitary with the platen.
Claim 4
Dependent Claim
18 words
The device of claim 1 wherein the stop is a separate member secured to the platen working surface.
Claim 5
Dependent Claim
26 words
The device of claim 7 wherein the stop comprises a second clamping member and means for anchoring the second clamping member to the platen working surface.
Claim 6
Dependent Claim
26 words
The device of claim 1 wherein the clamping face comprises a notch having a shoulder for supporting the workpiece and a face for engaging the workpiece.
Claim 7
Dependent Claim
40 words
The device of claim 1 wherein the clamping member includes a conical bore defining an inner peripheral bearing surface, the actuating means being inserted eccentrically through the conical bore and into engagement with a portion of the inner bearing surface.
Claim 8
Dependent Claim
24 words
The device of claim 2 wherein the actuating means comprises a fastener having a tapered head, the tapered head defining the tapered bearing surface.
Claim 9
Dependent Claim
39 words
The device of claim 3 further comprising a threaded bore within the platen the fastener comprising threaded shank means for cooperation with the platen threaded bore, the threaded shank means centered on a common axis with the tapered head.
Claim 10
Dependent Claim
28 words
The device of claim 3 wherein the fastener includes a recess in a surface of the head, the recess being engageable by a tool for turning the fastener.
Claim 11
Dependent Claim
58 words
The device of claim 3 wherein the platen includes a bore having a lower threaded portion and a cylindrical portion between the lower threaded portion and the platen working surface, and wherein the fastener includes a shank having threaded shank means for cooperation with the lower threaded portion and cylindrical shank means for cooperation with the cylindrical portion.
Claim 12
Dependent Claim
96 words
A clamping device for holding a workpiece comprising: a platen having a working surface including a stop; a clamping member having a sliding face adapted for sliding movement along the platen working surface and at least one clamping face adapted to engage a workpiece; and a fastener secured into the platen defining a central axis, the fastener having a bearing surface concentrically positioned about the central axis, the bearing surface engaging the clamping member for simultaneously anchoring the clamping member to the platen on the platen working surface while moving the clamping member toward the stop.
Claim 13
Dependent Claim
96 words
A clamping device for holding a workpiece comprising: a platen having a working surface including a stop; a clamping member having a sliding face adapted for sliding movement along the platen working surface and at least one clamping face adapted to engage a workpiece; and a fastener secured into the platen defining a central axis, the fastener having a bearing surface concentrically positioned about the central axis, the bearing surface engaging the clamping member for simultaneously anchoring the clamping member to the platen on the platen working surface while moving the clamping member toward the stop.
Claim 14
Dependent Claim
39 words
The device of claim 11 wherein the clamping member includes a conical bore defining an inner peripheral bearing surface, the fastener being inserted eccentrically through the conical bore and into engagement with a portion of the inner bearing surface.
Claim 15
Dependent Claim
19 words
The device of claim 12 wherein the fastener includes a tapered head, the tapered head defining the bearing surface.
Claim 16
Dependent Claim
26 words
The device of claim 13 further comprising a threaded bore within the platen the fastener comprising threaded shank means for cooperation with the platen threaded bore.
Claim 17
Dependent Claim
28 words
The device of claim 13 wherein the fastener includes a recess in a surface of the head, the recess being engageable by a tool for turning the fastener.
Claim 18
Dependent Claim
13 words
The device of claim 11 wherein the stop is unitary with the platen.
Claim 19
Dependent Claim
18 words
The device of claim 11 wherein the stop is a separate member secured to the platen working surface.
Claim 20
Dependent Claim
26 words
The device of claim 17 wherein the stop comprises a second clamping member and means for anchoring the second clamping member to the platen working surface.
Claim 21
Dependent Claim
26 words
The device of claim 11 wherein the clamping face comprises a notch having a shoulder for supporting the workpiece and a face for engaging the workpiece.
Claim 22
Dependent Claim
58 words
The device of claim 13 wherein the platen includes a bore having a lower threaded portion and a cylindrical portion between the lower threaded portion and the platen working surface, and wherein the fastener includes a shank having threaded shank means for cooperation with the lower threaded portion and cylindrical shank means for cooperation with the cylindrical portion.
References Cited (Backward Citations)
US449039A
Cited
US744559A
Cited
US1017846A
Cited
US1102814A
Cited
US1685899A
Cited
US2000239A
Cited
US2092372A
Cited
US2430613A
Cited
US2625861A
Cited
US2587025A
Cited
US3473420A
Cited
US3866898A
Cited
US3893813A
Cited
US4139188A
Cited
USD302277S
Cited
US4805888A
Cited
US4804171A
Cited
US5035411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-05-09 | 1997-11-08 | 1998-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-09 | 2001-11-08 | 2002-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-09 | 2005-11-08 | 2006-05-10 | $7700.00 | Window Closed / Lapsed |