US3668971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for machining an elongated workpiece
Assignee: Milacron Inc
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Filing: 1970-06-02
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Granted: 1972-06-13
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Expires: 1990-06-02
Abstract
Abstract An elongated workpiece, which is maintained under tension, is machined along its surfaces by relative longitudinal movement between the workpiece and a support for a pair of perpendicularly disposed cutting tools. A fixture, which is connected to the support for the cutting tools so that the fixture is always the same longitudinal distance from the cutting tools, has the elongated workpiece pass therethrough. The fixture has two reference surfaces, which are perpendicular to each other, against which two perpendicular surfaces of the workpiece are urged by pressure rollers in the fixture acting against workpiece surfaces, which are parallel to the surfaces of the workpiece engaging the reference surfaces.
Inventors
- 👤 Lewis A Dever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:33
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/002; B23B; B23B41/00; B23B41/003; B23B41/006; B23C; B23C1/00; B23C1/12; B23Q1/00; B23Q1/01; B23Q1/012; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303752; Y10T409/303808; Y10T409/306664; Y10T409/307448; Y10T409/307728; Y10T409/307784
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
129 words
An apparatus for machining an elongated workpiece having a plurality of surfaces at angles to each other including: means to place an elongated workpiece under tension along its longitudinal axis; cutting means to cut at least one surface of the workpiece; means to provide at least one reference surface; means to urge a surface of the workpiece against said reference surface, said reference surface being fixed against movement in the direction in which said urging means urges the surface of the workpiece against said reference surface; means to produce relatIve longitudinal movement between said cutting means and the workpiece to cut at least the one surface of the workpiece along its length; and means to maintain said providing means a predetermined longitudinal distance from said cutting means during machining.
Claim 2
Independent Claim
129 words
An apparatus for machining an elongated workpiece having a plurality of surfaces at angles to each other including: means to place an elongated workpiece under tension along its longitudinal axis; cutting means to cut at least one surface of the workpiece; means to provide at least one reference surface; means to urge a surface of the workpiece against said reference surface, said reference surface being fixed against movement in the direction in which said urging means urges the surface of the workpiece against said reference surface; means to produce relatIve longitudinal movement between said cutting means and the workpiece to cut at least the one surface of the workpiece along its length; and means to maintain said providing means a predetermined longitudinal distance from said cutting means during machining.
Claim 3
Dependent Claim
69 words
The apparatus according to claim 1 in which said providing means has a pair of reference surfaces at an angle to each other that is the same as the angle between two surfaces of the workpiece that said urging means urges against said reference surfaces, each of said reference surfaces being fixed against movement in the direction in which said urging means urges the surface of the workpiece thereagainst.
Claim 4
Dependent Claim
21 words
The apparatus according to claim 2 in which said reference surfaces of said providing means are substantially perpendicular to each other.
Claim 5
Dependent Claim
29 words
The apparatus according to claim 3 in which said producing means moves said cutting means longitudinally to create the relative longitudinal movement between said cutting means and the workpiece.
Claim 6
Dependent Claim
29 words
The apparatus according to claim 4 in which said maintaining means includes means to connect said providing means and said cutting means to each other for longitudinal movement together.
Claim 7
Dependent Claim
44 words
The apparatus according to claim 3 in which said providing means includes means to introduce a cleaning fluid against at least one of the surfaces being cut by said cutting means and having one of said urging means and said reference surfaces engaging therewith.
Claim 8
Dependent Claim
47 words
The apparatus according to claim 3 in which said urging means acts against each of a pair of surfaces of the workpiece with each of the pair of surfaces being substantially parallel to one of the surfaces of the workpiece bearing against one of said reference surfaces.
Claim 9
Dependent Claim
88 words
The apparatus according to claim 3 in which: said urging means comprises two separate urging means; and each of said separate urging means includes: a roller acting on a surface of the workpiece that is substantially parallel to a surface of the workpiece bearing against one of said reference surfaces; lever means rotatably supporting said roller; and means acting on said lever means to exert a force thereon to maintain said roller against the surface of the workpiece irrespective of the configuration of the surface of the workpiece.
Claim 10
Dependent Claim
42 words
The apparatus according to claim 3 including a plurality of longitudinally spaced means to support the workpiece intermediate its ends, each of said support means being rendered ineffective when disposed adjacent the portion of the workpiece being cut by said cutting means.
Claim 11
Dependent Claim
29 words
The apparatus according to claim 2 in which said producing means moves said cutting means longitudinally to create the relative longitudinal movement between said cutting means and the workpiece.
Claim 12
Dependent Claim
29 words
The apparatus according to claim 10 in which said maintaining means includes means to connect said providing means and said cutting means to each other for longitudinal movement together.
Claim 13
Dependent Claim
44 words
The apparatus according to claim 2 in which said providing means includes means to introduce a cleaning fluid against at least one of the surfaces being cut by said cutting means and having one of said urging means and said reference surfaces engaging therewith.
Claim 14
Dependent Claim
47 words
The apparatus according to claim 2 in which said urging means acts against each of a pair of surfaces of the workpiece with each of the pair of surfaces being substantially parallel to one of the surfaces of the workpiece bearing against one of said reference surfaces.
Claim 15
Dependent Claim
88 words
The apparatus according to claim 2 in which: said urging means comprises two separate urging means; and each of said separate urging means includes: a roller acting on a surface of the workpiece that is substantially parallel to a surface of the workpiece bearing against one of said reference surfaces; lever means rotatably supporting said roller; and means acting on said lever means to exert a force thereon to maintain said roller against the surface of the workpiece irrespective of the configuration of the surface of the workpiece.
Claim 16
Dependent Claim
42 words
The apparatus according to claim 2 including a plurality of longitudinally spaced means to support the workpiece intermediate its ends, each of said support means being rendered ineffective when disposed adjacent the portion of the workpiece being cut by said cutting means.
Claim 17
Dependent Claim
29 words
The apparatus according to claim 1 in which said producing means moves said cutting means longitudinally to create the relative longitudinal movement between said cutting means and the workpiece.
Claim 18
Dependent Claim
29 words
The apparatus according to claim 16 in which said maintaining means includes means to connect said providing means and said cutting means to each other for longitudinal movement together.
Claim 19
Dependent Claim
30 words
The apparatus according to claim 1 in which said providing means includes means to introduce a cleaning fluid against at least the one surface being cut by said cutting means.
Claim 20
Dependent Claim
33 words
The apparatus according to claim 1 in which said urging means acts against a surface of the workpiece that is substantially parallel to the surface of the workpiece bearing against said reference surface.
Claim 21
Dependent Claim
71 words
The apparatus according to claim 1 in which said urging means includes: a roller acting on a surface of the workpiece that is substantially parallel to the surface bearing against said reference surface; lever means rotatably supporting said roller; and means acting on said lever means to exert a force thereon to maintain said roller against the surface of the workpiece irrespective of the configuration of the surface of the workpiece.
Claim 22
Dependent Claim
42 words
The apparatus according to claim 1 including a plurality of longitudinally spaced means to support the workpiece intermediate its ends, each of said support means being rendered ineffective when disposed adjacent the portion of the workpiece being cut by said cutting means.
Claim 23
Independent Claim
111 words
A method for machining an elongated workpiece having a plurality of surfaces at angles to each other including: placing the elongated workpiece under tension along its longitudinal axis; urging a surface of the workpiece against a reference surface that is fixed against movement in the direction in which the surface of the workpiece is urged against the reference surface; cutting the workpiece along at least one surface with cutting means; producing relative longitudinal movement between the workpiece and the cutting means to cut at least the one surface of the workpiece along substantially its entire length; and maintaining the reference surface a fixed longitudinal distance from the cutting means during machining.
Claim 24
Independent Claim
111 words
A method for machining an elongated workpiece having a plurality of surfaces at angles to each other including: placing the elongated workpiece under tension along its longitudinal axis; urging a surface of the workpiece against a reference surface that is fixed against movement in the direction in which the surface of the workpiece is urged against the reference surface; cutting the workpiece along at least one surface with cutting means; producing relative longitudinal movement between the workpiece and the cutting means to cut at least the one surface of the workpiece along substantially its entire length; and maintaining the reference surface a fixed longitudinal distance from the cutting means during machining.
Claim 25
Dependent Claim
75 words
The method according to claim 22 including: urging two surfaces of the workpiece that are at an angle to each other against two reference surfaces at the same angle to each other as the surfaces of the workpiece with each of the reference surfaces being fixed against movement in the direction in which the surface of the workpiece is urged thereagainst; and cutting at least two surfaces of the workpiece along substantially their entire lengths.
Claim 26
Dependent Claim
28 words
The method according to claim 23 including disposing the reference surfaces substantially perpendicular to each other to cooperate with a pair of substantially perpendicular surfaces of the workpiece.
Claim 27
Dependent Claim
29 words
The method according to claim 24 in which: the cutting means is moved longitudinally and the workpiece is fixed; and the reference surfaces are moved with the cutting means.
Claim 28
Dependent Claim
29 words
The method according to claim 22 in which: the cutting means is moved longitudinally and the workpiece is fixed; and the reference surface is moved with the cutting means.
Claim 29
Dependent Claim
23 words
The method according to claim 22 including directing a cleaning fluid against at least one surface of the workpiece that is being cut.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |