Patent US3801090A successfully refreshed from Google Patents.
US3801090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coordinate table
Assignee: Individual
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Filing: 1972-07-10
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Granted: 1974-04-02
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Expires: 1992-07-10
Abstract
Abstract A table providing a work surface is mounted on a supporting base for movement to selected coordinate positions along two orthogonal axes. The drive mechanism for the table is fixed in a central position on the base and actuates screw means attached to the table. The entire drive mechanism is enclosed within the table and actuating motors are mounted in the base, the table being supported by orthogonal bars sliding in guide blocks which roll on top of the base for smooth and precise operation.
Inventors
- 👤 W Gillen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:27
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/56; B23Q1/60; B23Q1/62; B23Q1/621; B23Q3/00; B23Q3/15; B23Q3/154; B23Q3/1543; Y; Y10; Y10S; Y10S248/00; Y10S248/913; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5617
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
86 words
A coordinate table comprising: a base, a work supporting table mounted on said base, drive means fixed on said base and having orthogonally movable drive members connected to said table, for moving the table over relative to said base, said drive members being contained within the dimensional limits of the table, said drive means includes a drive block fixed to said base, and said drive members being screw threaded shafts passing through said block, each shaft having an actuating nut thereon, rotatably mounted in the block.
Claim 2
Dependent Claim
86 words
A coordinate table comprising: a base, a work supporting table mounted on said base, drive means fixed on said base and having orthogonally movable drive members connected to said table, for moving the table over relative to said base, said drive members being contained within the dimensional limits of the table, said drive means includes a drive block fixed to said base, and said drive members being screw threaded shafts passing through said block, each shaft having an actuating nut thereon, rotatably mounted in the block.
Claim 3
Dependent Claim
28 words
A coordinate table according to claim 1, and including actuating motors mounted in said base and connected to said actuating nuts for selective rotational drive of the nuts.
Claim 4
Dependent Claim
28 words
A coordinate table according to claim 1, and including trunnion blocks fixed to opposite ends of each of said shafts, said table being slidably mounted on said trunnions.
Claim 5
Dependent Claim
35 words
A coordinate table according to claim 3, wherein said table has orthogonally related pairs of guide rods fixed adjacent the periphery thereof, said trunnion blocks having channels in which said guide rods are slidably retained.
Claim 6
Dependent Claim
45 words
A coordinate table according to claim 4, wherein one guide rod of each pair is rigidly fixed to said table, the other guide rod of each pair having an attachment to the table with limited freedom of motion for maintaining parallelism with the rigid rod.
Claim 7
Dependent Claim
36 words
A coordinate table according to claim 4, wherein said base has a flat topped platform, each of said trunnion blocks having supporting rollers for rolling on said platform in the axial direction of the respective shaft.
Claim 8
Dependent Claim
31 words
A coordinate table according to claim 6, wherein said table has a work holding top platen thereon, said platen having resilient support means connected to the table for limited vertical displacement.
Claim 9
Dependent Claim
27 words
A coordinate table according to claim 7, wherein said drive block has an upper portion spaced immediately below said platen, for supporting the platen under downward load.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |