US3617143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arcuate hole-cutting tool
Assignee: Custom Alloy Corp
•
Filing: 1969-04-29
•
Granted: 1971-11-02
•
Expires: 1989-04-29
Abstract
Abstract A cutting tool for cutting along an annular path comprises a cutting head, a drive motor and speed reducer unit including an output shaft, and a fixed-angle rotating joint transmission means mounted in an arcuate member and connected to one end to the output shaft and at the other end to the cutting head for transmitting power thereto about a severe arc. The tool and power source are mounted on a rotatable table so that the tool can be fed into a stationary workpiece.
Inventors
- 👤 Harold K Mckee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:15
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/36; B23B5/365; Y; Y10; Y10T; Y10T408/00; Y10T408/65; Y10T408/665
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
222 words
An apparatus for cutting an arcuate hole through a workpiece comprising: a. a source of motive power including a driven output shaft; b. a cutting head; c. a rigid arcuate hollow body having a transmission means mounted therein connected at one end to said output shaft and at the other end to said cutting head for transmitting power thereto abut the fixed arc of said body, said transmission means comprising a plurality of rigid shafts interconnected with one another and mounted at fixed angles with respect to said arcuate body, each of said shafts being mounted to rotate about its fixed longitudinal axis; d. means for holding a workpiece comprising a multiple-jaw chuck for gripping said workpiece at a plurality of positions along the length thereof, each of the jaws of said chuck being disposed at an angle to the others; and e. means for driving said cutting tool comprising a rotatable annular table upon which said source of motive power is mounted, said rigid arcuate body extending from said source of power in a plane parallel to said table, said multiple-jaw chuck being positioned to hold said workpiece in the path of said cutting tool as said table rotates, and means connected to said annular table to rotate said table about its center and drive said cutting tool through said workpiece.
Claim 2
Independent Claim
222 words
An apparatus for cutting an arcuate hole through a workpiece comprising: a. a source of motive power including a driven output shaft; b. a cutting head; c. a rigid arcuate hollow body having a transmission means mounted therein connected at one end to said output shaft and at the other end to said cutting head for transmitting power thereto abut the fixed arc of said body, said transmission means comprising a plurality of rigid shafts interconnected with one another and mounted at fixed angles with respect to said arcuate body, each of said shafts being mounted to rotate about its fixed longitudinal axis; d. means for holding a workpiece comprising a multiple-jaw chuck for gripping said workpiece at a plurality of positions along the length thereof, each of the jaws of said chuck being disposed at an angle to the others; and e. means for driving said cutting tool comprising a rotatable annular table upon which said source of motive power is mounted, said rigid arcuate body extending from said source of power in a plane parallel to said table, said multiple-jaw chuck being positioned to hold said workpiece in the path of said cutting tool as said table rotates, and means connected to said annular table to rotate said table about its center and drive said cutting tool through said workpiece.
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |