Patent US548318A successfully refreshed from Google Patents.
US3762007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary hollow milling cutter
Assignee: Polymetallurgical Corp
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Filing: 1971-01-11
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Granted: 1973-10-02
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Expires: 1991-01-11
Abstract
Abstract A rotary hollow milling cutter for removing the peripheral surface of a moving length of round metal rod. The milling cutter is used to cut away the contaminated surface of a core rod to prepare it for the subsequent solid-phase bonding thereto of a cladding sheath to produce a clad rod. All the contiguous central edges of the cutter teeth are cutting edges and no portion of the rod is exposed to the atmosphere after being cut by the teeth.
Inventors
- 👤 P Dion
- 👤 P Hagarman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:28
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/24; B21; B21C; B21C23/00; B21C23/22; B21C23/24; B21C37/00; B21C37/04; B21C37/042; B21F; B21F19/00; B23C; B23C5/00; B23D; B23D79/00; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/893; Y10T82/00; Y10T82/25; Y10T82/2527; Y10T82/28
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
107 words
A rotary hollow milling cutter for removing the peripheral surface of a moving length of round metal rod, said milling cutter comprising: a. An annular cutter head having a hollow portion forming a central aperture into which the moving rod passes; b. a plurality of contiguous cutter teeth located on the upstream end of said cutter head, said teeth having inner surfaces forming a continuous cylindrical wall, said teeth inner surfaces having contiguous central edges forming the upstream end of said cylindrical wall; and c. means for rotating said annular cutter head at a rotational speed at which said teeth cenTral edges all act as cutting edges.
Claim 2
Dependent Claim
107 words
A rotary hollow milling cutter for removing the peripheral surface of a moving length of round metal rod, said milling cutter comprising: a. An annular cutter head having a hollow portion forming a central aperture into which the moving rod passes; b. a plurality of contiguous cutter teeth located on the upstream end of said cutter head, said teeth having inner surfaces forming a continuous cylindrical wall, said teeth inner surfaces having contiguous central edges forming the upstream end of said cylindrical wall; and c. means for rotating said annular cutter head at a rotational speed at which said teeth cenTral edges all act as cutting edges.
Claim 3
Dependent Claim
34 words
The milling cutter of claim 1 further having a frusto-conical relief portion faired smoothly between the downstream end of said cutter teeth inner surface cylindrical wall and the upstream end of said hollow portion.
Claim 4
Dependent Claim
41 words
The milling cutter of claim 1 wherein the surfaces of said cutter teeth which extend away from said central edges are disposed so as to deflect the removed peripheral rod surface portions at angles less than 90* from the rod surface.
Claim 5
Dependent Claim
21 words
The milling cutter of claim 1 wherein each said cutter tooth has three differently angled edges forming said contiguous central edges.
Claim 6
Dependent Claim
16 words
The milling cutter of claim 1 wherein said cutter head and said cutter teeth are integral.
Claim 7
Dependent Claim
60 words
A process for removing the peripheral surface of a length of round metal rod comprising the following steps: a. moving the length of round metal rod into the central aperture of an annular cutting head; and b. rotating the annular cutter head at a speed at which the contiguous central teeth edges all act as cutting edges on the rod.
Claim 8
Dependent Claim
60 words
A process for removing the peripheral surface of a length of round metal rod comprising the following steps: a. moving the length of round metal rod into the central aperture of an annular cutting head; and b. rotating the annular cutter head at a speed at which the contiguous central teeth edges all act as cutting edges on the rod.
Claim 9
Dependent Claim
54 words
The process of claim 6 wherein the configuration of the central tooth edges, the rod diameter, the rod speed, and the cutter head rotational speed all coact to direct and to immediately confine the freshly milled rod surface to within the central aperture of the cutter head and to maintain said rod surface contaminant-free.
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 |