US4387286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling splashes and purification of a machining liquid
Assignee: Japan Kinoko Research Center Foundation
•
Filing: 1981-03-19
•
Granted: 1983-06-07
•
Expires: 2001-03-19
Abstract
Abstract An arrangement for use with a worktank or machining receptacle in a machine tool, e.g. a wire-cut EDM machine, wherein a machining liquid is supplied to a machining zone defined between a tool and a workpiece wherefrom it is permitted to fall at least in part freely by gravity while entraining the machining products therein. In the receptacle provided for temporarily impounding therein the machining liquid falling directly from the machining zone there is provided a liquid damping member which includes a rugged layer of magnetic material for impingement upon by the falling machining liquid droplets and streams to whereby dissipate splashes thereof while magnetically trapping the ferromagnetic machining products therein.
Inventors
- 👤 Kiyoshi Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:54
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/10; B23Q11/1069; B23H; B23H1/00; B23H1/10; B23H7/00; B23H7/02; B23H7/08; B23H7/10; B23H7/101; F; F16; F16N; F16N39/00
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
141 words
A machine tool wherein a machining liquid is supplied to a machining zone defined between a tool and a workpiece and thence, while entraining ferromagnetic machining products therein, is allowed to fall freely from said machining zone at least in part by gravity, said machine tool comprising: a receptacle disposed at least in major part below said machining zone directly across an air space for temporarily impounding in said receptacle said machining liquid falling freely from said machining zone across said air space; and a liquid collecting member disposed in said receptacle and comprising a rugged layer of magnetic material which is disposed below said machining zone so as to be impinged upon by said freely falling machining liquid whereby the tendency thereof to splash is dissipated by energy absorption while said ferromagnetic machining products therein are captured on said layer.
Claim 2
Dependent Claim
141 words
A machine tool wherein a machining liquid is supplied to a machining zone defined between a tool and a workpiece and thence, while entraining ferromagnetic machining products therein, is allowed to fall freely from said machining zone at least in part by gravity, said machine tool comprising: a receptacle disposed at least in major part below said machining zone directly across an air space for temporarily impounding in said receptacle said machining liquid falling freely from said machining zone across said air space; and a liquid collecting member disposed in said receptacle and comprising a rugged layer of magnetic material which is disposed below said machining zone so as to be impinged upon by said freely falling machining liquid whereby the tendency thereof to splash is dissipated by energy absorption while said ferromagnetic machining products therein are captured on said layer.
Claim 3
Dependent Claim
22 words
The machine tool defined in claim 1 wherein said rugged layer comprises at least one layer of particulate objects of magnetic material.
Claim 4
Dependent Claim
20 words
The machine tool defined in claim 2, further comprising a casing for retaining said particulate objects of magnetic material therein.
Claim 5
Dependent Claim
40 words
The machine tool defined in claim 3 wherein said casing is formed in a side wall portion thereof, with at least one opening for allowing the machining liquid collected in said casing to flow to a floor of said receptacle.
Claim 6
Dependent Claim
40 words
The machine tool defined in claim 3 wherein said casing is formed in a bottom wall portion thereof with at least one opening for allowing the machining liquid collected in said casing to flow to a floor of said receptacle.
Claim 7
Dependent Claim
42 words
The machine tool defined in claim 3 wherein said casing comprises a screen of mesh smaller than said particulate objects for defining a bottom wall portion of said casing and a frame member for constituting a side wall portion of said casing.
Claim 8
Dependent Claim
18 words
The machine tool defined in claim 2 wherein said particulate objects are composed of a permanent magnet material.
Claim 9
Dependent Claim
50 words
The machine tool defined in claim 2 wherein a portion of said particulate objects are composed of a permanent magnet material and the remainder are composed of a magnetizable material and adapted to be magnetized by the magnetic field produced at least in part by said permanent magnet particulate objects.
Claim 10
Dependent Claim
38 words
The machine tool defined in claim 7 or claim 8 wherein said permanent magnet material includes a substance selected from the group which consists of aluminum-nickel-cobalt alloys, barium ferrite, strontium ferrite, samarium cobalt, aluminum-manganese alloys and iron-chromium-cobalt alloys.
Claim 11
Dependent Claim
35 words
The machine tool defined in claim 2 wherein at least a major part of said particulate objects are composed of a magnetizable material, further comprising external magnetic field means for magnetizing said magnetizable particulate objects.
Claim 12
Dependent Claim
32 words
The machine tool defined in claim 10 wherein said external magnetic field means comprises electromagnet coil means energizable by a power supply for exerting a magnetic field on said magnetizable particulate objects.
Claim 13
Dependent Claim
28 words
The machine tool defined in claim 10 wherein said external magnetic field means comprises an external permanent magnet for exerting a magnetic field on said magnetizable particulate objects.
Claim 14
Dependent Claim
35 words
The machine tool defined in claim 8 or claim 10 where said magnetizable material includes a substance selected from the group which consists of iron, nickel, cobalt, ferrites, iron-chromium-cobalt alloys, iron-silicon-aluminum alloys and iron-nickel alloys.
Claim 15
Dependent Claim
27 words
The machine tool defined in claim 2 wherein at least a major part of said particulate objects have a particle size ranging between 2 and 10 mm.
Claim 16
Dependent Claim
20 words
The machine tool defined in claim 2 wherein at least some of said particulate objects are individually spherical in shape.
Claim 17
Dependent Claim
37 words
The machine tool defined in claim 2, further comprising a support member for said particulate objects, said support member consisting of an elastic substance having magnetic particles distributed therein for holding said particulate objects by magnetic attraction.
Claim 18
Dependent Claim
19 words
The machine tool defined in claim 16 wherein said particulate objects are greater in size than said magnetic particles.
Claim 19
Dependent Claim
20 words
The machine tool defined in claim 17 wherein at least some of said particulate objects are individually spherical in shape.
Claim 20
Dependent Claim
29 words
The machine tool defined in claim 17 wherein at least some of said particulate objects individually have a conical shape with its base for attachment to said support member.
Claim 21
Dependent Claim
29 words
The machine tool defined in claim 17 wherein at least some of said particulate objects individually have a pyramidal shape with its base for attachment to said support member.
Claim 22
Dependent Claim
18 words
The machine tool defined in claim 17 wherein said magnetic particles are composed of a permanent magnet material.
Claim 23
Dependent Claim
46 words
The machine tool defined in claim 17 wherein said magnetic particles are composed in part of a permanent magnet material and in part of a magnetizable material and adapted to be magnetized by the magnetic field produced at least in part by said permanent magnet particles.
Claim 24
Dependent Claim
38 words
The machine tool defined in claim 21 or claim 22 wherein said permanent magnet material includes a substance selected from the group which consists of aluminum-nickel-cobalt alloys, barium ferrite, strontium ferrite, samarium cobalt, aluminum-manganese alloys and iron-chromium-cobalt alloys.
Claim 25
Dependent Claim
34 words
The machine tool defined in claim 17 wherein at least a major part of said magnetic particles are composed of a magnetizable material, further comprising external magnetic field means for magnetizing said magnetizable particles.
Claim 26
Dependent Claim
31 words
The machine tool defined in claim 24 wherein said external magnetic field means comprises electromagnet coil means energizable by a power supply for exerting a magnetic field to said magnetizable particles.
Claim 27
Dependent Claim
29 words
The machine tool defined in claim 24 wherein said external magnetic field means comprises an external permanent magnet for exerting a magnetic field on to said magnetizable particulate objects.
Claim 28
Dependent Claim
35 words
The machine tool defined in claim 22 or claim 24 wherein said magnetizable material includes a substance selected from the group which consists of iron, nickel, cobalt, ferrites, iron-chronium-cobalt alloys, iron-silicon-aluminum alloys and iron-nickel alloys.
Claim 29
Dependent Claim
22 words
The machine tool defined in claim 17 wherein said magnetic particles have a particle size ranging between 1 micron and 10 mm.
Claim 30
Dependent Claim
34 words
The machine tool defined in claim 1 wherein said rugged layer of magnetic material is constituted by a multiplicity of projections of a body consisting of an elastic substance having magnetic particles distributed therein.
Claim 31
Dependent Claim
18 words
The machine tool defined in claim 29 wherein said projections are greater in size than the magnetic particles.
Claim 32
Dependent Claim
19 words
The machine tool defined in claim 30 wherein at least some of said projections are individually spherical in shape.
Claim 33
Dependent Claim
14 words
The machine tool defined in claim 30 wherein said projection have a conical shape.
Claim 34
Dependent Claim
19 words
The machine tool defined in claim 30 wherein at least some of said projections are individually pyramidal in shape.
Claim 35
Dependent Claim
26 words
The machine tool defined in claim 30 wherein said projections are inclined outwardly or towards at least a pair of opposed horizontal ends of said body.
Claim 36
Dependent Claim
18 words
The machine tool defined in claim 30 wherein said magnetic particles are composed of a permanent magnet material.
Claim 37
Dependent Claim
46 words
The machine tool defined in claim 30 wherein said magnetic particles are composed in part of a permanent magnet material and in part of a magnetizable material and adapted to be magnetized by the magnetic flux produced at least in part by said permanent magnet particles.
Claim 38
Dependent Claim
38 words
The machine tool defined in claim 35 or claim 36 wherein said permanent magnet material includes a substance selected from the group which consists of aluminum-nickel-cobalt alloys, barium ferrite, strontium ferrite, samarium cobalt, aluminum-manganese alloys and iron-chromium-cobalt alloys.
Claim 39
Dependent Claim
34 words
The machine tool defined in claim 30 wherein at least a major part of said magnetic particles are composed of a magnetizable material, further comprising external magnetic field means for magnetizing said magnetizable particles.
Claim 40
Dependent Claim
31 words
The machine tool defined in claim 38 wherein said external magnetic field means comprises electromagnet coil means energizable by a power supply for exerting a magnetic field on said magnetizable particles.
Claim 41
Dependent Claim
27 words
The machine tool defined in claim 38 wherein said external magnetic field means comprises an external permanent magnet for exerting a magnetic field on said magnetizable particles.
Claim 42
Dependent Claim
35 words
The machine tool defined in claim 36 or claim 38 wherein said magnetizable material includes a substance selected from the group which consists of iron, nickel, cobalt, ferrites, iron-chromium-cobalt alloys, iron-silicon-aluminum alloys and iron-nickel alloys.
Claim 43
Dependent Claim
22 words
The machine tool defined in claim 30 wherein said magnetic particles have a particle size ranging between 1 micron and 10 mm.
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) | 1986-06-06 | 1986-12-06 | 1987-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-06 | 1990-12-06 | 1991-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-06 | 1994-12-06 | 1995-06-07 | $7700.00 | Window Closed / Lapsed |