US3850254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction device for extracting drill chippings
Assignee: Individual
•
Filing: 1973-07-06
•
Granted: 1974-11-26
•
Expires: 1993-07-06
Abstract
Abstract A drilling apparatus comprising a suction device for extracting drill chippings. The suction device includes a fan which is driven by a friction wheel operatively connected to the chuck of the drill. The suction channel includes a telescopic sleeve which surrounds the tool in the drill chuck.
Inventors
- 👤 R Hirdes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:48
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/0042; B23Q11/0046; Y; Y10; Y10T; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/453; Y10T408/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
89 words
A drill apparatus comprising a drill including a housing, a motor, and a chuck for attaching a tool; and a suction means surrounding at least a portion of the tool for extracting drill chippings made by the tool, the suction means drivable connected to the motor and operable therewith, wherein the suction means comprises a dust exhauster including a fan wheel releasably attached to the drill, and a transmission for operably connecting the fan wheel and chuck whereby the fan wheel is driven by the chuck through the transmission.
Claim 2
Dependent Claim
89 words
A drill apparatus comprising a drill including a housing, a motor, and a chuck for attaching a tool; and a suction means surrounding at least a portion of the tool for extracting drill chippings made by the tool, the suction means drivable connected to the motor and operable therewith, wherein the suction means comprises a dust exhauster including a fan wheel releasably attached to the drill, and a transmission for operably connecting the fan wheel and chuck whereby the fan wheel is driven by the chuck through the transmission.
Claim 3
Dependent Claim
44 words
A drill apparatus according to claim 1, including a screw clamp for attaching the dust exhauster to the housing of the drill and wherein the transmission and the fan wheel are positioned in a dust exhauster housing adapted to the shape of the drill.
Claim 4
Dependent Claim
20 words
A drill apparatus according to claim 2, wherein the transmission means and the fan wheel are provided with self-lubricating bearings.
Claim 5
Dependent Claim
52 words
A drill apparatus according to claim 1, wherein the suction channel of the dust exhauster comprises a telescopic means; and a sleeve which surrounds the tool at its end; said sleeve comprising a peephole on its periphery and having an elastic sealing member on its front side facing away from the drill.
Claim 6
Dependent Claim
30 words
A drill apparatus according to claim 1, wherein the fan wheel, the housing, the transmission means, the telescopic means and the sleeve of the dust exhauster are made of plastic.
Claim 7
Dependent Claim
31 words
A drill apparatus according to claim 1, wherein said transmission comprises a friction wheel operatively coupled to the chuck and a gear means coupling said friction wheel to said fan wheel.
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |