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US 5,051,044 AGranted
Pipe drilling apparatus
OwnerHarold Alleninventor
Life of this patent
Estimating the term…
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.
Claims25
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.degree.,
- 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.
4 more elements
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.
3 more elements
Dependencies are inferred from the claim text.