US3403738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill/scredriver with impact mechanism
Assignee: Aro Corp
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Filing: 1966-11-01
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Granted: 1968-10-01
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Expires: 1986-11-01
Abstract
No abstract record available.
Inventors
- 👤 Larry L Burkhart
- 👤 Otis D Hitt
- 👤 Paul E Troike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:48
CPC Classifications
B; B25; B25B; B25B21/00; B25B21/02; B25B21/023; B25B23/00; B25B23/0007; B25B23/0035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A TOOL OF THE CHARACTER DISCLOSED, A MOTOR, A HOUSING THEREFOR, A BIT HOLDER ROTATABLE IN SAID HOUSING, MEANS FOR OPERATIVELY CONNECTING SAID MOTOR TO SAID BIT HOLDER FOR ROTATING THE HOLDER UPON ENERGIZATION OF THE MOTOR, A BIT SLIDABLE AND NONROTATABLE IN SAID BIT HOLDER, HAMMER MEANS SLIDABLY IN SAID HOUSING AND HAVING A NORMAL POSITION REARWARDLY THEREIN, MEANS FOR DRIVING SAID HAMMER MEANS FORWARDLY IN SAID HOUSING TO DELIVER AN IMPACT BLOW TO SAID BIT, AN ANVIL INTERPOSED BETWEEN SAID BIT AND SAID HAMMER MEANS, MEANS FOR BIASING SAID ANVIL FORWARDLY IN SAID BIT HOLDER, AND SAID ANVIL BEING PROVIDED WITH STOP MEANS IN A FORWARD POSITION THEREOF.
Claim 2
Dependent Claim
111 words
IN A TOOL OF THE CHARACTER DISCLOSED, A MOTOR, A HOUSING THEREFOR, A BIT HOLDER ROTATABLE IN SAID HOUSING, MEANS FOR OPERATIVELY CONNECTING SAID MOTOR TO SAID BIT HOLDER FOR ROTATING THE HOLDER UPON ENERGIZATION OF THE MOTOR, A BIT SLIDABLE AND NONROTATABLE IN SAID BIT HOLDER, HAMMER MEANS SLIDABLY IN SAID HOUSING AND HAVING A NORMAL POSITION REARWARDLY THEREIN, MEANS FOR DRIVING SAID HAMMER MEANS FORWARDLY IN SAID HOUSING TO DELIVER AN IMPACT BLOW TO SAID BIT, AN ANVIL INTERPOSED BETWEEN SAID BIT AND SAID HAMMER MEANS, MEANS FOR BIASING SAID ANVIL FORWARDLY IN SAID BIT HOLDER, AND SAID ANVIL BEING PROVIDED WITH STOP MEANS IN A FORWARD POSITION THEREOF.
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) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |