Patent US4588334A successfully refreshed from Google Patents.
US4588334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable clocking nose piece
Assignee: Lockheed Martin Corp
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Filing: 1984-09-07
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Granted: 1986-05-13
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Expires: 2004-09-07
Abstract
Abstract Disclosed is a nose piece for a power drill and hand drill with certain modifications made to nose piece and using telescopic bushing, having a drill motor, a drill spindle and a drill bit attached to the spindle, the nose piece being capable of longitudinal adjustment with respect to the length of the drill bit and radial adjustment of its position with respect to the drill motor and the work piece.
Inventors
- 👤 Sudershan K. Khurana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:13
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/12; B23B51/126; Y; Y10; Y10T; Y10T408/00; Y10T408/44; Y10T408/46; Y10T408/55; Y10T408/561; Y10T408/5623; Y10T408/56245; Y10T408/96; Y10T408/98
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
125 words
A nose piece for a power drill, said drill having a drill motor, a drill spindle, and a drill bit attached to said spindle comprising: (a) a first housing for enclosing said drill bit and said drill spindle; (b) means for attaching said housing to said drill motor and varying both the linear and radial relationships between said housing and said drill bit; (c) bushing means connected on one end to said first housing and on the opposite end to a drill jig so that said drill bit must pass through said bushing means to contact a work piece; and (d) clocking means for adjusting and fixing the linear and radial positions of said housing with respect to said drill bit and said work piece.
Claim 2
Dependent Claim
125 words
A nose piece for a power drill, said drill having a drill motor, a drill spindle, and a drill bit attached to said spindle comprising: (a) a first housing for enclosing said drill bit and said drill spindle; (b) means for attaching said housing to said drill motor and varying both the linear and radial relationships between said housing and said drill bit; (c) bushing means connected on one end to said first housing and on the opposite end to a drill jig so that said drill bit must pass through said bushing means to contact a work piece; and (d) clocking means for adjusting and fixing the linear and radial positions of said housing with respect to said drill bit and said work piece.
Claim 3
Dependent Claim
66 words
The nose piece of claim 1 wherein said means for attaching said housing to said drill motor comprises a complimentary second housing circumferentially threaded to telescopically engage said first housing so that a variable relationship is created between the linear and radial positions of said first housing and said drill bit and said work piece and means for coupling said second housing with said drill motor.
Claim 4
Dependent Claim
105 words
The nose piece of claim 1 wherein said clocking means comprises a slip ring encircling said second housing having a one edge notched to engage complimentary notches on the adjacent end of said first housing; a pin extending through said ring to engage a linear slot running from end to end of said second housing so that the position of said slip ring on said second housing may be varied along the long axis of said second housing but the radial position of said slip ring on said second housing remains constant and a jam nut positioned between said slip ring and said drill motor.
Claim 5
Dependent Claim
33 words
The nose piece of claim 1 wherein said first housing further comprises a coolant entry port whereby coolant can be injected into said nose piece and made to flow around said drill bit.
Claim 6
Dependent Claim
35 words
The nose piece of claim 1 wherein said first housing further comprises at least one chip window cut into the sides of said housing whereby chips and dust can be evacuated from the work piece.
Claim 7
Dependent Claim
22 words
The nose piece of claim 1 wherein said first housing further includes means for mounting said bushing means within said first housing.
Claim 8
Dependent Claim
35 words
The nose piece of claim 1 wherein said bushing means comprises a reducer bushing and a complimentary lock bushing the diameter of which is determined by the the diameter of the drill bit being used.
Claim 9
Dependent Claim
37 words
The nose piece of claim 1 wherein said bushing means further including means for delivering coolant to said drill bit and the work piece at the point of contact between said drill bit and said work piece.
References Cited (Backward Citations)
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Cited
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US2868044A
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US3015240A
Cited
US3620636A
Cited
US4037982A
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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) | 1989-05-12 | 1989-11-11 | 1990-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-12 | 1993-11-11 | 1994-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-12 | 1997-11-11 | 1998-05-13 | $7700.00 | Window Closed / Lapsed |