US3830485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work table for machine tools
Assignee: Individual
•
Filing: 1972-11-02
•
Granted: 1974-08-20
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Expires: 1992-11-02
Abstract
Abstract A work table for machine tools, such as radial drilling machines and the like, the table having grooved areas in its top and side surfaces, the groove or grooves extending for a distance below said surfaces and from one end of the table to its other end. A clamping bar is located in each groove, the groove or grooves having side walls mainly perpendicular to its surfaces, the clamping bar being guided by said walls. Said bar is movable in the groove toward or away from the surface of the table, the clamping bar extending along the length of the groove and is provided in its surface facing the surface of the table with an undercut or T-groove for at least a substantial part of its length.
Inventors
- 👤 S Mickelsson
- 👤 S Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:45
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/02; B23Q3/10; B23Q3/102; B23Q3/103; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/309016
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
133 words
A work table for machine tools, such as drilling machines, milling machines and the like, comprising: a. a T-grooved table surface having at least one T-recess thereof located at a spaced distance from the table surface and opening into a widened recess extending along said T-recess; b. a clamping bar reciprocably guided in said widened recess and extending longitudinally thereof; c. said clamping bar having a longitudinal T-groove facing said T-recess; d. T-bolts having their heads engaging the T-groove of said clamping bar; e. the opposite end of said T-bolts projecting beyond said Tgrooved table surface; f. clamping means adjustably mounted on said opposite ends of the T-bolts for holding a workpiece; and g. means for exerting a clamping force on said clamping bar to clamp the workpiece firmly to said table surface.
Claim 2
Dependent Claim
133 words
A work table for machine tools, such as drilling machines, milling machines and the like, comprising: a. a T-grooved table surface having at least one T-recess thereof located at a spaced distance from the table surface and opening into a widened recess extending along said T-recess; b. a clamping bar reciprocably guided in said widened recess and extending longitudinally thereof; c. said clamping bar having a longitudinal T-groove facing said T-recess; d. T-bolts having their heads engaging the T-groove of said clamping bar; e. the opposite end of said T-bolts projecting beyond said Tgrooved table surface; f. clamping means adjustably mounted on said opposite ends of the T-bolts for holding a workpiece; and g. means for exerting a clamping force on said clamping bar to clamp the workpiece firmly to said table surface.
Claim 3
Dependent Claim
45 words
A chuck table according to claim 1, in which the clamping bar is actuated by power transmitting devices which are connected with and act on the clamping bar at points located at a distance from each other in the longitudinal direction of the clamping bar.
Claim 4
Dependent Claim
43 words
A chuck table according to claim 1, wherein the portion of the side walls of the T-groove in the clamping bar and which is closest to the surface of said clamping bar, is beveled, so that the T-groove widens outwardly toward said surface.
Claim 5
Dependent Claim
19 words
A chuck table according to claim 1, having a substantially horizontal T-grooved surface and a substantially vertical T-grooved surface.
References Cited (Backward Citations)
CA656572A
Cited
US1420321A
Cited
GB512865A
Cited
US2421957A
Cited
DE834171C
Cited
US3192600A
Cited
FR1375736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |