US3762246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flange facing machine
Assignee: DND CORP
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Filing: 1971-07-02
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Granted: 1973-10-02
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Expires: 1991-07-02
Abstract
Abstract A portable compact machine for resurfacing the faces of flanges on pipes and/or valves, wherein a base is releasably mounted in the bore of the pipe or valve in alignment therewith for accurate cutting of the flange face with a lathe tool, and wherein the tool is automatically fed radially as it is rotated by a power means mounted on a support column removably positioned on the base.
Inventors
- 👤 A Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:50
CPC Classifications
B; B23; B23B; B23B3/00; B23B3/22; B23B3/26; Y; Y10; Y10T; Y10T82/00; Y10T82/22
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
179 words
A flange facing machine for facing a flange on a tubular member, comprising: a base adapted to fit within the bore of a tubular member having a flange thereon which is to be faced; a hollow substantially cylindrical support column surrounding at least a portion of said base and having a lower end; securing means securing said support column to said base to prevent relative rotation therebetween; single attachment means having a plurality of attaching members at substantially the same elevation for releasably securing said base to the inner wall of the tubular member; a rotatable frame mounted on saiD support column for rotation relative thereto; a facing tool secured to said rotatable frame for rotational movement therewith; a power means for rotating said rotatable frame; a ring gear with said support column near its lower end; and means engageable with said ring gear and operable in response to the rotation of said rotatable frame for automatically and continuously feeding said facing tool substantially radially with respect to the bore of the tubular member as said tool is rotated.
Claim 2
Dependent Claim
179 words
A flange facing machine for facing a flange on a tubular member, comprising: a base adapted to fit within the bore of a tubular member having a flange thereon which is to be faced; a hollow substantially cylindrical support column surrounding at least a portion of said base and having a lower end; securing means securing said support column to said base to prevent relative rotation therebetween; single attachment means having a plurality of attaching members at substantially the same elevation for releasably securing said base to the inner wall of the tubular member; a rotatable frame mounted on saiD support column for rotation relative thereto; a facing tool secured to said rotatable frame for rotational movement therewith; a power means for rotating said rotatable frame; a ring gear with said support column near its lower end; and means engageable with said ring gear and operable in response to the rotation of said rotatable frame for automatically and continuously feeding said facing tool substantially radially with respect to the bore of the tubular member as said tool is rotated.
Claim 3
Dependent Claim
56 words
The structure set forth in claim 1, wherein said base and said support column are separate from each other, and including wherein; said securing means is releasably attached to said support column for permitting mounting of said support column on said base after said attachment means is secured to the inner wall of the tubular member.
Claim 4
Dependent Claim
179 words
A flange facing machine for facing a flange on a tubular member, comprising: a base adapted to fit within the bore of a tubular member having a flange thereon which is to be faced; a support column separate from and mounted on said base; means for releasably attaching said support column to said base; attachment means for releasably securing said base to the inner wall of the tubular member; a rotatable frame mounted on said support column for rotation relative thereto; a facing tool secured to said rotatable frame for rotational movement therewith; power means for rotating said rotatable frame; means operable in response to the rotation of said rotatable frame for automatically and continuously feeding said facing tool substantially radially with respect to the bore of the tubular member as said tool is rotated; and said means for attaching comprising means for expanding said base internally of said support column after said base has been aligned relative to the tubular member for thereby locking said support column to said base in alignment therewith and with the tubular member.
Claim 5
Dependent Claim
179 words
A flange facing machine for facing a flange on a tubular member, comprising: a base adapted to fit within the bore of a tubular member having a flange thereon which is to be faced; a support column separate from and mounted on said base; means for releasably attaching said support column to said base; attachment means for releasably securing said base to the inner wall of the tubular member; a rotatable frame mounted on said support column for rotation relative thereto; a facing tool secured to said rotatable frame for rotational movement therewith; power means for rotating said rotatable frame; means operable in response to the rotation of said rotatable frame for automatically and continuously feeding said facing tool substantially radially with respect to the bore of the tubular member as said tool is rotated; and said means for attaching comprising means for expanding said base internally of said support column after said base has been aligned relative to the tubular member for thereby locking said support column to said base in alignment therewith and with the tubular member.
Claim 6
Dependent Claim
52 words
The structure set forth in claim 3, wherein: said base is tubular, is slotted at its upper portion and has internal threads; and said expanding means is an externally threaded tapered member which acts to expand the slotted portion of said base as it is threaded into said threads of said base.
Claim 7
Dependent Claim
37 words
The structure set forth in claim 1, including: means for feeding said facing tool either inwardly or outwardly with respect to the bore of the tubular member as said tool is rotated in the same rotational direction.
Claim 8
Dependent Claim
35 words
The structure set forth in claim 1, wherein: said power means for rotating said rotatable frame is mounted on said support column; and said power means includes an adjustable chain drive to said rotatable frame.
Claim 9
Dependent Claim
156 words
A flange facing machine for facing a flange on a tubular member, comprising: a support column having a base therewith adapted to fit within the bore of a tubular member having a flange thereon which is to be faced; attachment means for releasably securing said base to the inner wall of the tubular member; a rotatable frame mounted on said support column for rotation relative thereto; a facing tool secured to said rotatable frame for rotational movement therewith; power means for rotating said rotatable frame in one direction; tool feed means operable in response to the rotation of said rotatable frame for automatically and continuously feeding said facing tool substantially radially either inwardly or outwardly with respect to the bore of the tubular member as said tool is rotated; and shifting means for shifting said tool feed means for selecting the direction of feed of said tool while said frame moves in only said one direction.
Claim 10
Dependent Claim
156 words
A flange facing machine for facing a flange on a tubular member, comprising: a support column having a base therewith adapted to fit within the bore of a tubular member having a flange thereon which is to be faced; attachment means for releasably securing said base to the inner wall of the tubular member; a rotatable frame mounted on said support column for rotation relative thereto; a facing tool secured to said rotatable frame for rotational movement therewith; power means for rotating said rotatable frame in one direction; tool feed means operable in response to the rotation of said rotatable frame for automatically and continuously feeding said facing tool substantially radially either inwardly or outwardly with respect to the bore of the tubular member as said tool is rotated; and shifting means for shifting said tool feed means for selecting the direction of feed of said tool while said frame moves in only said one direction.
Claim 11
Dependent Claim
58 words
The structure set forth in claim 7, wherein: said base has a first base portion which is laterally movable relative to a second base portion secured in a fixed position in the tubular member by said attachment means for obtaining vertical alignment of the axis of sAid first base portion relative to the axis of the tubular member.
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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |