US4382820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural composition for machine tool bodies and members
Assignee: Japan Kinoko Research Center Foundation
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Filing: 1981-02-27
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Granted: 1983-05-10
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Expires: 2001-02-27
Abstract
Abstract A structural member for a machine tool is formed of a nonmetallic substance, e.g. cement, concrete cement or ceramic, having discrete solid objects, e.g. fibers, filaments, chips, fragments and/or particles, of a metal, carbon, ceramic, cermet and/or plastic dispersively distributed therein as reinforcing elements. Metallic frames may be embedded in the nonmetallic substrate to form a skeleton for the member.
Inventors
- 👤 Kiyoshi Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:09
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/04; B23; B23H; B23H11/00; B23Q; B23Q1/00; B23Q1/01; B23Q1/015; C; C04; C04B; C04B14/00; C04B14/02; C04B14/022; C04B14/30; C04B14/32; C04B14/34; C04B16/00; C04B16/04; F; F16; F16M; F16M5/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
109 words
A method of making a structural member for a machine tool which comprises the steps of: (a) dispersing in a mass of a hardenable nonmetallic substance, a multiplicity of discrete solid objects forming reinforcing elements and in an amount comprising 0.5 to 30% by weight of the resulting composition; (b) shaping said composition into a configuration corresponding to the shape of the structural member and including at least a machine tool bed and a machine tool column extending upwardly from said bed; and (c) hardening the mass of the shaped composition to form the structural member as a rigid body with said elements distributed throughout said column and bed.
Claim 2
Independent Claim
109 words
A method of making a structural member for a machine tool which comprises the steps of: (a) dispersing in a mass of a hardenable nonmetallic substance, a multiplicity of discrete solid objects forming reinforcing elements and in an amount comprising 0.5 to 30% by weight of the resulting composition; (b) shaping said composition into a configuration corresponding to the shape of the structural member and including at least a machine tool bed and a machine tool column extending upwardly from said bed; and (c) hardening the mass of the shaped composition to form the structural member as a rigid body with said elements distributed throughout said column and bed.
Claim 3
Dependent Claim
24 words
The method defined in claim 1 wherein the amount of said elements distributed in said body is not greater than 15% by weight thereof.
Claim 4
Dependent Claim
14 words
The method defined in claim 1 wherein said mass is cement, ceramic or concrete.
Claim 5
Dependent Claim
23 words
The method defined in claim 3 wherein said elements are selected from the group which consists of metals, carbon, ceramics, cermets and plastics.
Claim 6
Dependent Claim
17 words
The method defined in claim 1 wherein said elements consist at least in part of magnetic meterial.
Claim 7
Dependent Claim
22 words
The method defined in claim 1, further comprising the steps of embedding a frame in said body prior to the hardening thereof.
Claim 8
Dependent Claim
92 words
A machine tool support member comprising a bed, a column rising from said bed, and a head extending from said column and overlying said bed, said head, column and bed being formed unitarily from a hardened mass of nonmetallic material selected from the group which consists of cement, ceramic and concrete containing dispersed and embedded therein, 0.5 to 15% by weight of discrete solid objects selected from the group which consists of metals, carbon, ceramics, cermets and plastics and reinforcing said mass without rendering the same significantly thermally or electrically conductive thereto.
Claim 9
Dependent Claim
92 words
A machine tool support member comprising a bed, a column rising from said bed, and a head extending from said column and overlying said bed, said head, column and bed being formed unitarily from a hardened mass of nonmetallic material selected from the group which consists of cement, ceramic and concrete containing dispersed and embedded therein, 0.5 to 15% by weight of discrete solid objects selected from the group which consists of metals, carbon, ceramics, cermets and plastics and reinforcing said mass without rendering the same significantly thermally or electrically conductive thereto.
Claim 10
Dependent Claim
25 words
The machine tool support defined in claim 7, further comprising a metallic skeleton embedded in said mass and extending into said head, bed and column.
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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) | 1986-05-09 | 1986-11-08 | 1987-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-09 | 1990-11-08 | 1991-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-09 | 1994-11-08 | 1995-05-10 | $7700.00 | Window Closed / Lapsed |