US5051044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe drilling apparatus
Assignee: Individual
•
Filing: 1990-03-05
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Granted: 1991-09-24
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Expires: 2010-03-05
Abstract
Abstract An apparatus which is used to enhance the capability of in situ drilling of holes in existing pipes or other conduits, or virtually any cylindrical object. The apparatus includes a mounting unit which rests upon the pipe to be drilled and a drill mounting apparatus. The drill mounting apparatus is removably mounted to the mounting unit. The drill mounting apparatus is adapted to receive and position a drilling device which forms a hole in the pipe or the like.
Inventors
- 👤 Harold Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:31
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/0021; B25H1/0057; B25H1/0064; Y; Y10; Y10T; Y10T408/00; Y10T408/21; Y10T408/55; Y10T408/561; Y10T408/5619; Y10T408/564; Y10T408/5647; Y10T408/5653; Y10T408/65; Y10T408/675; Y10T408/6779; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/188; Y10T74/18808
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
135 words
A hole drilling apparatus comprising, an angulated base member including a pair of plate means joined together to form an interior angle of less than 180°, a pair of post members which extend from said base member, a drill mounting plate member which is slidably mounted on said pair of post members, resilient means mounted on at least one of said pair of post members intermediate said base member and said plate member to selectively urge relative motion therebetween, first gear means mounted on said plate member, second gear means mounted on one of said post members and interactive with said first gear means whereby said plate member can be moved relative to said pair of post members, and locking means disposed adjacent to said base member to selectively lock said apparatus to a workpiece.
Claim 2
Dependent Claim
135 words
A hole drilling apparatus comprising, an angulated base member including a pair of plate means joined together to form an interior angle of less than 180°, a pair of post members which extend from said base member, a drill mounting plate member which is slidably mounted on said pair of post members, resilient means mounted on at least one of said pair of post members intermediate said base member and said plate member to selectively urge relative motion therebetween, first gear means mounted on said plate member, second gear means mounted on one of said post members and interactive with said first gear means whereby said plate member can be moved relative to said pair of post members, and locking means disposed adjacent to said base member to selectively lock said apparatus to a workpiece.
Claim 3
Dependent Claim
18 words
The apparatus recited in claim 1 including, at least one level indicator means mounted on said plate member.
Claim 4
Dependent Claim
14 words
The apparatus recited in claim 1 including, drilling means mounted to said plate member.
Claim 5
Dependent Claim
24 words
The apparatus recited in claim 1 wherein, said first gear means comprises a spur gear, and said second gear means comprises a rack gear.
Claim 6
Dependent Claim
26 words
The apparatus recited in claim 1 wherein, said plate member includes a pair of spaced apart apertures therethrough for slidably receiving said pair of post members.
Claim 7
Dependent Claim
17 words
The apparatus recited in claim 1 wherein, said post members are detachably mounted to said base member.
Claim 8
Dependent Claim
25 words
The apparatus recited in claim 6 wherein, said base member includes a pair of receptacles mounted thereon for selectively receiving said pair of post members.
Claim 9
Dependent Claim
26 words
The apparatus recited in claim 2 wherein, said level indicator means includes spirit levels for providing two level indications which are disposed in a 90° relationship.
Claim 10
Dependent Claim
24 words
The apparatus recited in claim 1 wherein, said plate member includes a pivot arm at one end thereof for retaining a drill unit thereto.
Claim 11
Dependent Claim
14 words
The apparatus recited in claim 1 wherein, said locking means includes elongated chain means.
Claim 12
Dependent Claim
22 words
The apparatus recited in claim 10 wherein, said locking means includes adjustment means for selectively altering the size of said locking means.
Claim 13
Dependent Claim
28 words
The apparatus recited in claim 11 wherein, said chain means is attached at one end thereof to said adjustment means, said adjustment means includes a threaded rod means.
Claim 14
Dependent Claim
45 words
The apparatus recited in claim 11 wherein, said locking means includes mounting means at one side of said angulated base member for receiving said adjustment means, and aperture means at another side of said angulated base member for receiving another end of said chain means.
Claim 15
Dependent Claim
26 words
The apparatus recited in claim 1 including, cutout portions at one end of said angulated base member to provide a measurement scale for measuring said workpiece.
Claim 16
Dependent Claim
22 words
The apparatus recited in claim 1 wherein, said resilient means comprises a coil spring which encircles said at least one post member.
Claim 17
Dependent Claim
22 words
The apparatus recited in claim 1 including, gear housing means mounted on said plate member for supporting said first gear means therein.
Claim 18
Dependent Claim
34 words
The apparatus recited in claim 16 wherein, said gear housing includes an aperture therethrough for receiving said one post member and said second gear means mounted thereon in proximity to said first gear means.
Claim 19
Dependent Claim
35 words
The apparatus recited in claim 1 including, lever means connected to said first gear means by means of an axle therethrough whereby said first gear means can be moved by selectively moving said lever means.
Claim 20
Dependent Claim
25 words
The apparatus recited in claim 13 wherein, said mounting means comprises a tubular member extending outwardly from said one side of said angulated base member.
Claim 21
Dependent Claim
19 words
The apparatus recited in claim 9 including, retaining means for selectively securing said pivot arm to said plate member.
Claim 22
Dependent Claim
36 words
The apparatus recited in claim 20 wherein, said pivot arm is arcuately shaped, and said one end of said plate member is arcuately shaped complementary to said pivot arm to provide a substantially round space therebetween.
Claim 23
Dependent Claim
30 words
The apparatus recited in claim 21 wherein, said retaining means is adjustable so that said pivot arm can be secured to said plate member whereby said round space is adjustable.
Claim 24
Dependent Claim
22 words
The apparatus recited in claim 2 including, fin means which extend from said plate member to substantially surround said level indicator means.
Claim 25
Dependent Claim
18 words
The apparatus recited in claim 12 wherein, said adjustment means includes knob means engaging said threaded rod means.
Claim 26
Independent Claim
138 words
An apparatus for supporting an electric drill comprising, an angulated base member comprising a pair of plate means joined together to form an angle, a pair of post members which extend from the vertex of the angle formed by said pair of plate means in said base member, a drill mounting plate member including a pair of apertures therethrough to receive said pair of post members whereby said plate member is slideably mounted on said pair of post members, first toothed means mounted on said plate member, second toothed means mounted on one of said post members and interactive with said first toothed means whereby said plate member can be moved relative to said pair of post members, and driving means connected to at least one of said first and second toothed means to selectively produce motion thereof.
Claim 27
Independent Claim
138 words
An apparatus for supporting an electric drill comprising, an angulated base member comprising a pair of plate means joined together to form an angle, a pair of post members which extend from the vertex of the angle formed by said pair of plate means in said base member, a drill mounting plate member including a pair of apertures therethrough to receive said pair of post members whereby said plate member is slideably mounted on said pair of post members, first toothed means mounted on said plate member, second toothed means mounted on one of said post members and interactive with said first toothed means whereby said plate member can be moved relative to said pair of post members, and driving means connected to at least one of said first and second toothed means to selectively produce motion thereof.
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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) | 1994-09-23 | 1995-03-25 | 1995-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-23 | 1999-03-25 | 1999-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-23 | 2003-03-25 | 2003-09-24 | $7700.00 | Window Closed / Lapsed |