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US4211510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable boring head
Assignee: Valenite LLC
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Filing: 1978-09-05
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Granted: 1980-07-08
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Expires: 1998-09-05
Abstract
Abstract An adjustable boring tool including an axial shank and a socket for mounting a cylindrical boring bar with an offset axis clamped in adjustable position through transverse and longitudinally slotted segments on one side of the socket together with a transverse screw for clamping the slotted segments against the boring bar. A graduated dial fixed to the boring bar provides calibrated adjustment over a range equal to four times the offset.
Inventors
- 👤 David A. Hopkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:30
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/03; B23B29/034; B23B29/03403; B23B29/03428; Y; Y10; Y10T; Y10T279/00; Y10T279/14; Y10T279/17; Y10T279/17291; Y10T279/17316; Y10T279/17324; Y10T279/17333; Y10T279/17957; Y10T279/17965; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1928; Y10T407/193; Y10T407/22; Y10T407/2222; Y10T407/2224; Y10T407/225; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/854; Y10T408/86; Y10T408/885; Y10T408/94; Y10T408/95
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
108 words
An adjustable boring tool comprising an axially extending shank, an integral socket extending from one end of said shank having a cylindrical bore with an axis parallel and offset relative to the axis of said shank, a transverse slot extending through a wall of said socket intersecting said bore and a longitudinal slot extending through one side of said socket wall from the end thereof to an intersection with an intermediate portion of said transverse slot, a cylindrical boring bar having a rotationally adjustable fit within said cylindrical bore, and means for clamping the slotted segments of said socket wall against said cylindrical boring bar in adjusted position.
Claim 2
Dependent Claim
108 words
An adjustable boring tool comprising an axially extending shank, an integral socket extending from one end of said shank having a cylindrical bore with an axis parallel and offset relative to the axis of said shank, a transverse slot extending through a wall of said socket intersecting said bore and a longitudinal slot extending through one side of said socket wall from the end thereof to an intersection with an intermediate portion of said transverse slot, a cylindrical boring bar having a rotationally adjustable fit within said cylindrical bore, and means for clamping the slotted segments of said socket wall against said cylindrical boring bar in adjusted position.
Claim 3
Dependent Claim
50 words
An adjustable boring tool as set forth in claim 1 including as said means for clamping a transverse screw extending through said longitudinal slot, a shouldered aperture in one and a threaded aperture in the other of said slotted segments engaged respectively by headed and threaded portions of said screw.
Claim 4
Dependent Claim
26 words
An adjustable boring tool as set forth in claim 1 or 2 wherein said transverse slot extends substantially to the center line of said socket bore.
Claim 5
Dependent Claim
37 words
An adjustable boring tool as set forth in claim 1 or 2 wherein said transverse slot extends substantially to the center line of said socket bore, and said longitudinal slot intersects the center of said transverse slot.
Claim 6
Dependent Claim
43 words
An adjustable boring tool as set forth in claim 1 or 2 wherein said transverse slot extends substantially to the center line of said socket bore, and said longitudinal slot extends in an axial plane which intersects the center of said transverse slot.
Claim 7
Dependent Claim
28 words
An adjustable boring tool as set forth in claim 1 including calibrated means for accurately gauging the adjustment of relative rotational position between said boring bar and socket.
Claim 8
Dependent Claim
23 words
An adjustable boring tool as set forth in claim 4 wherein said calibrated means includes a removable gauge ring on said boring bar.
Claim 9
Dependent Claim
30 words
An adjustable boring tool as set forth in claim 1 including a plurality of interchangeable boring bars constructed for incremental cutting radii providing an enlarged composite continuous range of adjustment.
Claim 10
Dependent Claim
34 words
An adjustable boring tool as set forth in claim 1 including a plurality of interchangeable boring bars constructed for incremental cutting radii providing an enlarged composite continuous range of adjustment with overlapping individual extremities.
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) | 1983-07-08 | 1984-01-07 | 1984-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-08 | 1988-01-07 | 1988-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-08 | 1992-01-07 | 1992-07-08 | $7700.00 | Window Closed / Lapsed |