Patent US4001982A successfully refreshed from Google Patents.
US4001982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting tip reseater
Assignee: SIERRA TOOL Co
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Filing: 1975-07-23
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Granted: 1977-01-11
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Expires: 1995-07-23
Abstract
Abstract Apparatus for reseating the two or more sealing surfaces of a cutting tool tip is disclosed. The sealing surfaces of such a cutting tool tip are conformed to a common conical shape. The apparatus of the present invention includes a support member which has a conical interior cavity conformed to the common conical shape of the sealing surfaces. A slit is provided in the support member which communicates with the cavity so that a sheet of emery paper can be inserted through the slit to circumscribe and conform to the interior surface of the cavity. As a result, a damaged cutting tool tip can be inserted in the cavity with the sealing surfaces thereof flush with the emery paper and rotated to reseat the seaing surfaces in the common conical shape.
Inventors
- 👤 Robert K. Griffin
- 👤 Birch A. Ober
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:06
CPC Classifications
B; B24; B24D; B24D15/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
141 words
Apparatus for reseating the two or more sealing surfaces of a cutting tool tip which are conformed to a common conical shape, said apparatus comprising a support member having an interior cavity, the interior surface of said cavity at least partially having a conical shape conformed to the common conical shape of the sealing surfaces, said support member further having a slit communicating with the cavity so that the slit intersects the conical shape of the interior surface, and a sheet of emery paper inserted through the slit to circumscribe and conform to the interior surface to the cavity whereby the cutting tool tip can be inserted in the cavity with the sealing surfaces thereof flush with the emery paper and the support member rotated relative to the cutting tool tip to reseat the sealing surfaces in said common conical shape.
Claim 2
Dependent Claim
141 words
Apparatus for reseating the two or more sealing surfaces of a cutting tool tip which are conformed to a common conical shape, said apparatus comprising a support member having an interior cavity, the interior surface of said cavity at least partially having a conical shape conformed to the common conical shape of the sealing surfaces, said support member further having a slit communicating with the cavity so that the slit intersects the conical shape of the interior surface, and a sheet of emery paper inserted through the slit to circumscribe and conform to the interior surface to the cavity whereby the cutting tool tip can be inserted in the cavity with the sealing surfaces thereof flush with the emery paper and the support member rotated relative to the cutting tool tip to reseat the sealing surfaces in said common conical shape.
Claim 3
Dependent Claim
21 words
Apparatus as recited in claim 1 wherein the support member has a cylindrical exterior surface coaxial with the interior conical shape.
Claim 4
Dependent Claim
24 words
Apparatus as recited in claim 2 wherein at least a portion of the cylindrical surface is knurled to facilitate turning of said support member.
Claim 5
Dependent Claim
13 words
Apparatus as recited in claim 1 wherein the slit comprises a planar slit.
Claim 6
Dependent Claim
190 words
A cutting tool tip system which comprises a cutting tool tip having at least two sealing surfaces conformed to a common conical shape attachment of the tip to a cutting tool with the sealing surfaces thereof in abutment with complementary surfaces on the cutting tool to isolate and confine the flow of two combustible gasses to said tip, means for reseating the sealing surfaces of the cutting tool tip comprising a cylindrical support member having an interior cavity, the interior surface of said cavity at least partially having a conical shape coaxial with said cylindrical support member and conformed to the common conical shape of the sealing surfaces, said support member further having a substantially planar slit communicating with the cavity and a sheet of emery paper inserted through the slit to circumscribe and conform to the interior surface of the cavity and a knurled exterior portion so that the cutting tool tip can be inserted in the cavity with the sealing surfaces thereof flush with the emery paper and the support member rotated relative to the cutting tool tip to reseat the sealing surfaces in said common conical shape.
Claim 7
Dependent Claim
190 words
A cutting tool tip system which comprises a cutting tool tip having at least two sealing surfaces conformed to a common conical shape attachment of the tip to a cutting tool with the sealing surfaces thereof in abutment with complementary surfaces on the cutting tool to isolate and confine the flow of two combustible gasses to said tip, means for reseating the sealing surfaces of the cutting tool tip comprising a cylindrical support member having an interior cavity, the interior surface of said cavity at least partially having a conical shape coaxial with said cylindrical support member and conformed to the common conical shape of the sealing surfaces, said support member further having a substantially planar slit communicating with the cavity and a sheet of emery paper inserted through the slit to circumscribe and conform to the interior surface of the cavity and a knurled exterior portion so that the cutting tool tip can be inserted in the cavity with the sealing surfaces thereof flush with the emery paper and the support member rotated relative to the cutting tool tip to reseat the sealing surfaces in said common conical shape.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-11 | 1980-07-12 | 1981-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-11 | 1984-07-12 | 1985-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-11 | 1988-07-12 | 1989-01-11 | $7700.00 | Window Closed / Lapsed |