US5015129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adapter for battery-powered screwdriver to attach drill chuck
Assignee: Individual
•
Filing: 1990-08-23
•
Granted: 1991-05-14
•
Expires: 2010-08-23
Abstract
Abstract Commercially available battery-powered screwdriver output shafts are round and have hexagonal bores to receive the hexagonal shanks of screwdriver blades. An adapter has one end shaped to receive and engage such an output shaft. The opposite end is externally threaded to receive an internally threaded chuck which holds round shank twist drills. Thus, a power screwdriver may be used as a drill. An optional second adapter having one end shaped hexagonal to receive the screwdriver output shaft and be held in place by a set screw and has its opposite end shaped to be permanently attached to the first-mentioned adapter. This facilitates attaching and detaching the chuck.
Inventors
- 👤 Stephen D. Albin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:05
CPC Classifications
B; B25; B25B; B25B21/00; B25B21/007; B25B23/00; Y; Y10; Y10T; Y10T279/00; Y10T279/34; Y10T279/3406; Y10T408/00; Y10T408/94; Y10T408/95; Y10T408/957
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
122 words
An adapter for use with a battery powered screw driver of the type having an output shaft having a non-circular first socket shaped to receive the shank of a screwdriver blade therein and a drill chuck formed with an internally threaded second socket, said adapter comprising: a body having a first end formed with a third socket complementary to said output shaft for linear slidable engagement therewith and a stem centrally located in said third socket, said stem being shaped complementary to said first socket, said third socket having attachment means to detachably secure said body to said output shaft, said body having a second and opposite said first end having an externally threaded shank dimensioned to threadably engage said second socket.
Claim 2
Dependent Claim
122 words
An adapter for use with a battery powered screw driver of the type having an output shaft having a non-circular first socket shaped to receive the shank of a screwdriver blade therein and a drill chuck formed with an internally threaded second socket, said adapter comprising: a body having a first end formed with a third socket complementary to said output shaft for linear slidable engagement therewith and a stem centrally located in said third socket, said stem being shaped complementary to said first socket, said third socket having attachment means to detachably secure said body to said output shaft, said body having a second and opposite said first end having an externally threaded shank dimensioned to threadably engage said second socket.
Claim 3
Dependent Claim
43 words
An adapter according to claim 1 in which the distal end of said externally threaded shank is formed with a fourth socket dimensioned the same as said first socket and second attachment means to detachably secure a screwdriver blade in said fourth socket.
Claim 4
Dependent Claim
13 words
An adapter according to claim 1 in which said third socket is circular.
Claim 5
Dependent Claim
12 words
An adapter according to claim 1 in which said stem is hexagonal.
Claim 6
Dependent Claim
24 words
An adapter according to claim 1 in which said attachment means comprises a set screw threaded into said body transversely into said third socket.
Claim 7
Dependent Claim
27 words
An adapter according to claim 2 in which said second attachment means comprises a set screw threaded into said externally threaded shank transversely into said fourth socket.
Claim 8
Dependent Claim
57 words
An adapter according to claim 2 in which said adapter body is formed at its second end with a tapped hole, extending into said body from the bottom of said fourth socket, said tapped hole being threaded oppositely from said externally threaded shank to receive a left-hand thread screw extending through said second socket of said chuck.
Claim 9
Dependent Claim
50 words
An adapter according to claim 1 which further comprises a secondary adapter having a second body having a first end formed with a non-circular second stem shaped complementary to said first socket and a second end opposite said first end formed with a fourth socket complementary to said first-mentioned stem.
Claim 10
Dependent Claim
21 words
An adapter according to claim 8 which further comprises second attachment means to detachably secure a blade in said fourth socket.
Claim 11
Dependent Claim
22 words
An adapter according to claim 9 in which said second attachment means comprises a set screw threaded transversely into said fourth socket.
References Cited (Backward Citations)
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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) | 1994-05-13 | 1994-11-12 | 1995-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-13 | 1998-11-12 | 1999-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-13 | 2002-11-12 | 2003-05-14 | $7700.00 | Window Closed / Lapsed |