Patent US3564993A successfully refreshed from Google Patents.
US3564993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor for metal scraps and the like
Assignee: Individual
•
Filing: 1968-08-26
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Granted: 1971-02-23
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Expires: 1988-08-26
Abstract
Abstract A compressor for forming metal scraps such as chips, turnings and the like, derived from the cutting or shaving process of metals, into solid lumps which have a high specific gravity and are suitable for steel manufacturing by electric furnaces, which comprises a compression casing and an oil-pressure cylinder directly secured to said casing in the same axial direction therewith.
Inventors
- 👤 Kunitoshi Tezuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:29
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/32; B30B9/327; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49751; Y10T29/49753
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
A compressor for compacting metal scrap, lumps thereof and the like, comprising: a substantially straight, cylindrical compression casing having at least one end open; door means at the other end for selectively opening and closing the latter; a fluid-pressure cylinder having respective frontal cylinder and rear ram ends, said cylinder end being directly attached to said open end of the casing in the same axial direction; a force element reciprocably inserted into said casing and connected to said ram end of the cylinder, for compressing the metal scrap in said casing; a hopper box for said casing, joined thereto at right angles, communicating therewith, and having an inlet for introducing the metal scrap and the like, as well as a hinged lid for said inlet; and a push plate reciprocable in said hopper box for shifting the metal scrap toward said casing.
Claim 2
Dependent Claim
142 words
A compressor for compacting metal scrap, lumps thereof and the like, comprising: a substantially straight, cylindrical compression casing having at least one end open; door means at the other end for selectively opening and closing the latter; a fluid-pressure cylinder having respective frontal cylinder and rear ram ends, said cylinder end being directly attached to said open end of the casing in the same axial direction; a force element reciprocably inserted into said casing and connected to said ram end of the cylinder, for compressing the metal scrap in said casing; a hopper box for said casing, joined thereto at right angles, communicating therewith, and having an inlet for introducing the metal scrap and the like, as well as a hinged lid for said inlet; and a push plate reciprocable in said hopper box for shifting the metal scrap toward said casing.
Claim 3
Dependent Claim
62 words
The compressor as defined in claim 1, wherein an intermediate portion of said casing constitutes a feed port through which the metal scrap is introduced, the height of said feed portion being substantially equal to the inner diameter of said casing, at least the adjoining portion of said hopper box having a cross section substantially equal to that of said feed port.
Claim 4
Dependent Claim
42 words
The compressor as defined in claim 1 or 2, wherein the front side of said push plate is shaped with a semicircular, curved face whose cross section conforms substantially to the arc of the circle of the cross section of said casing.
Claim 5
Dependent Claim
55 words
The compressor as defined in claim 1 or 2, wherein said door means is disposed at the end of said casing opposite to where said force element is inserted, and is selectively movable in a direction perpendicular to that of said force element, for discharging the compacted metal scrap upon completion of the compressing operation.
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |