US3761191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode nipple drilling machine
Assignee: Unifrax I LLC
•
Filing: 1971-09-27
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Granted: 1973-09-25
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Expires: 1991-09-27
Abstract
Abstract A machine for drilling holes in electrode nipple blanks, the holes being undercut to hold the appropriate thermosetting binder material. The machine is air driven and has a control system which permits either manual or semi-automatic operation in a preset time sequence. The nipples receive their final threading after all other operations of drilling and binder material filling have been performed, the resulting finished nipples thus require no further thread cleaning or inspection before use.
Inventors
- 👤 G Frazier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:29
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/0009; B23Q1/0018; B23Q1/0027; B23Q1/0036; B23B; B23B39/00; B23B39/16; B23B41/00; Y; Y10; Y10T; Y10T408/00; Y10T408/03; Y10T408/16; Y10T408/175; Y10T408/34; Y10T408/352; Y10T408/36; Y10T408/38; Y10T408/3806; Y10T408/3809; Y10T408/381; Y10T408/50; Y10T408/52; Y10T408/54; Y10T408/545; Y10T408/55; Y10T408/561; Y10T408/5614; Y10T408/5616; Y10T408/65; Y10T408/675; Y10T408/6757
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
168 words
A machine for drilling undercut holes in a carbonaceous body, the machine comprising: 1. a frame; 2. a drill carriage mounted on the frame for movement toward and away from the cylindrical body; 3. a movable support for the body and means for moving the support; said support being mounted on the frame and capable of traverse slidable movement around a vertical pivot in axial alignment parallel to the axis of the drill, the traverse movement being perpendicular to the movement of the drill carriage; 4. a drill having a driving means for rotation and operationally associated with said drill carriage for drilling a hole in the body, said drill including a cutting bit having a head larger than the drill shaft whereby undercut slots are produced in the hole within the body when the body support and body are moved in traverse movement; and 5. control means including adjustable air sensor units for controlling the movement of the drill carriage toward and away from the body support.
Claim 2
Dependent Claim
168 words
A machine for drilling undercut holes in a carbonaceous body, the machine comprising: 1. a frame; 2. a drill carriage mounted on the frame for movement toward and away from the cylindrical body; 3. a movable support for the body and means for moving the support; said support being mounted on the frame and capable of traverse slidable movement around a vertical pivot in axial alignment parallel to the axis of the drill, the traverse movement being perpendicular to the movement of the drill carriage; 4. a drill having a driving means for rotation and operationally associated with said drill carriage for drilling a hole in the body, said drill including a cutting bit having a head larger than the drill shaft whereby undercut slots are produced in the hole within the body when the body support and body are moved in traverse movement; and 5. control means including adjustable air sensor units for controlling the movement of the drill carriage toward and away from the body support.
Claim 3
Dependent Claim
16 words
a drill carriage mounted on the frame for movement toward and away from the cylindrical body;
Claim 4
Dependent Claim
16 words
a drill carriage mounted on the frame for movement toward and away from the cylindrical body;
Claim 5
Dependent Claim
20 words
A machine according to claim 1 in which the means for moving the said body support is an air cylinder.
Claim 6
Dependent Claim
51 words
a movable support for the body and means for moving the support; said support being mounted on the frame and capable of traverse slidable movement around a vertical pivot in axial alignment parallel to the axis of the drill, the traverse movement being perpendicular to the movement of the drill carriage;
Claim 7
Dependent Claim
51 words
a movable support for the body and means for moving the support; said support being mounted on the frame and capable of traverse slidable movement around a vertical pivot in axial alignment parallel to the axis of the drill, the traverse movement being perpendicular to the movement of the drill carriage;
Claim 8
Dependent Claim
20 words
A machine according to claim 1 wherein said control means also controls the sequence of drilling operations upon the body.
Claim 9
Dependent Claim
59 words
a drill having a driving means for rotation and operationally associated with said drill carriage for drilling a hole in the body, said drill including a cutting bit having a head larger than the drill shaft whereby undercut slots are produced in the hole within the body when the body support and body are moved in traverse movement; and
Claim 10
Dependent Claim
59 words
a drill having a driving means for rotation and operationally associated with said drill carriage for drilling a hole in the body, said drill including a cutting bit having a head larger than the drill shaft whereby undercut slots are produced in the hole within the body when the body support and body are moved in traverse movement; and
Claim 11
Dependent Claim
36 words
A machine according to claim 1 wherein the drill has a hollow shaft and means for forcing a stream of air through the hollow shaft during drilling, whereby to carry out carbon chips from the body.
Claim 12
Dependent Claim
22 words
control means including adjustable air sensor units for controlling the movement of the drill carriage toward and away from the body support.
Claim 13
Dependent Claim
22 words
control means including adjustable air sensor units for controlling the movement of the drill carriage toward and away from the body support.
References Cited (Backward Citations)
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US3349647A
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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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |