Patent US2088942A successfully refreshed from Google Patents.
US3679320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable right angle drill
Assignee: Zephyr Manufacturing Co Inc
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Filing: 1970-10-28
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Granted: 1972-07-25
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Expires: 1990-10-28
Abstract
Abstract A portable drill with two gear trains driven by a single motor wherein one gear train rotatably drives a drill spindle and a pair of feed spindles through a connection that permits axial movement of the spindles, and the other gear train drives the pair of feed spindles through threaded connections therewith. The feed spindles carry a footplate adapted to be clamped to the work. Means is provided for changing the gear ratios of one gear train and other means provided for selectively stopping either gear train in order to advance and retract the feed spindles at different speeds.
Inventors
- 👤 Luis Bohorquez
- 👤 Pierre G Vindez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:38
CPC Classifications
B; B23; B23B; B23B45/00; B23B45/008; B23Q; B23Q5/00; B23Q5/22; B23Q5/34; B23Q5/348; B23Q5/38; B23Q5/40; B25; B25H; B25H1/00; B25H1/0021; B25H1/0057; B25H1/0064; Y; Y10; Y10T; Y10T408/00; Y10T408/18; Y10T408/55; Y10T408/561; Y10T408/5626; Y10T408/564; Y10T408/5647; Y10T408/65; Y10T408/675; Y10T408/6771; Y10T408/6774
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
93 words
A right angle drill, comprising a body, a drill spindle extending transversely of the body adjacent an end thereof and adapted to hold a drill bit, at least one feed spindle extending through said body parallel to said drill spindle, a footplate carried on the outer end of said feed spindle and adapted to be detachably secured to the work, and gear train means in the body for rotating said drill spindle and for moving said feed spindle axially relative to the body, said gear train means being adapted to be power driven.
Claim 2
Dependent Claim
93 words
A right angle drill, comprising a body, a drill spindle extending transversely of the body adjacent an end thereof and adapted to hold a drill bit, at least one feed spindle extending through said body parallel to said drill spindle, a footplate carried on the outer end of said feed spindle and adapted to be detachably secured to the work, and gear train means in the body for rotating said drill spindle and for moving said feed spindle axially relative to the body, said gear train means being adapted to be power driven.
Claim 3
Dependent Claim
38 words
The drill set forth in claim 1 in which said gear train means includes a drive gear train for rotating said drill and feed spindles and a feed gear train including a threaded connection with said feed spindle.
Claim 4
Dependent Claim
24 words
The drill set forth in claim 2 in which means is provided for selectively disengaging either of said gear trains from the power drive.
Claim 5
Dependent Claim
23 words
The drill set forth in claim 2 in which means is provided for changing the gear ratio of one of said gear trains.
Claim 6
Dependent Claim
22 words
The drill set forth in claim 2 in which means is provided for changing the gear ratio of said feed gear train.
Claim 7
Dependent Claim
40 words
The drill set forth in claim 2 in which means is provided for selectively disengaging either of said gear trains from the power drive, and in which means is provided for changing the gear ratio of the feed gear train.
Claim 8
Dependent Claim
23 words
The drill set forth in claim 1 in which said drill spindle is mounted in a removable head detachably secured to the body.
Claim 9
Dependent Claim
36 words
The drill set forth in claim 1 in which there are a pair of laterally spaced feed spindles parallel to the drill spindle and in which the footplate is carried on said pair of feed spindles.
Claim 10
Dependent Claim
52 words
The drill set forth in claim 8 in which said gear train means includes a drive gear train for rotating all of said spindles and a feed gear train for axially moving said feed spindles relative to said body, and said feed gear train including a threaded connection with each feed spindle.
Claim 11
Dependent Claim
116 words
A right angle drill, comprising a body, a drill spindle extending transversely of the body adjacent an end thereof and adapted to hold a drill bit, a pair of feed spindles extending through said body parallel to said drill spindle, a footplate carried on the outer ends of said feed spindles and adapted to be detachably secured to the work, a motor mounted on the body, a drive gear train in the body constructed and arranged to rotate all of said spindles, a feed gear train including threaded connections with said feed spindles constructed and arranged to move said feed spindles axially of said body, and a drive connection between the motor and said gear trains.
Claim 12
Dependent Claim
116 words
A right angle drill, comprising a body, a drill spindle extending transversely of the body adjacent an end thereof and adapted to hold a drill bit, a pair of feed spindles extending through said body parallel to said drill spindle, a footplate carried on the outer ends of said feed spindles and adapted to be detachably secured to the work, a motor mounted on the body, a drive gear train in the body constructed and arranged to rotate all of said spindles, a feed gear train including threaded connections with said feed spindles constructed and arranged to move said feed spindles axially of said body, and a drive connection between the motor and said gear trains.
Claim 13
Dependent Claim
24 words
The drill set forth in claim 10 in which means is provided for selectively disengaging either one of said gear trains from the motor.
Claim 14
Dependent Claim
23 words
The drill set forth in claim 11 in which means is provided for changing the gear ratio of one of said gear trains.
Claim 15
Dependent Claim
98 words
The drill set forth in claim 10 in which said motor is fluid operated and in which fluid-operated means is provided for disengaging either one of said gear trains from the motor including a fluid system adapted to be supplied with fluid under pressure, a manually operable valve means in said fluid system controlling flow of pressure fluid to said fluid-operated means, a main valve controlling flow of pressure fluid to said motor, and a limit valve operable in response to one of said feed spindles for controlling said manually operable valve meanS and said main valve means.
Claim 16
Dependent Claim
60 words
The drill set forth in claim 10 in which a clutch mechanism is provided for each gear train constructed and arranged to disengage the gear train from the motor, and in which a gear ratio changing means is included in said feed gear train constructed and arranged to enable selection of either one of at least two different gear ratios.
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |