US3675570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compression device
Assignee: Individual
•
Filing: 1970-12-28
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Granted: 1972-07-11
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Expires: 1990-12-28
Abstract
Abstract A compression device incorporating an ejection ram having an air extracting needle associated therewith for introduction into the substance being compressed. The air extracting needle is communicated with the atmosphere and provides a flow path for the entrained air within the material during the compression thereof.
Inventors
- 👤 Philip G Mersfelder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:23
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/0005; B30B15/0017; B30B9/00; B30B9/30; B30B9/3003; B30B9/3039
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
96 words
A bulk material compression device comprising a compression chamber, a compression ram movable in said chamber for compression of received material against a forming member, an ejection ram movable transversely across said chamber between said compression ram and the forming member for transverse ejection of a formed product, and an air extracting needle on and movable with said ejection ram projecting forwardly therefrom for embedment within the material to be compressed, said extraction needle communicating with the atmosphere outside of at least that portion of the compression chamber between the compression ram and the forming member.
Claim 2
Dependent Claim
96 words
A bulk material compression device comprising a compression chamber, a compression ram movable in said chamber for compression of received material against a forming member, an ejection ram movable transversely across said chamber between said compression ram and the forming member for transverse ejection of a formed product, and an air extracting needle on and movable with said ejection ram projecting forwardly therefrom for embedment within the material to be compressed, said extraction needle communicating with the atmosphere outside of at least that portion of the compression chamber between the compression ram and the forming member.
Claim 3
Dependent Claim
26 words
The device of claim 1 wherein said needle is hollow and includes a plurality of air passages therethrough communicating with the hollow interior of the needle.
Claim 4
Dependent Claim
21 words
The device of claim 2 wherein said needle is of a tapering configuration decreasing in cross-section forward from the ejection ram.
Claim 5
Dependent Claim
41 words
The device of claim 3 wherein said needle comprises opposed elongated walls, said walls having engaged upper and lower edges and being slightly convex relative to each other between said edges so as to define a narrow relatively sharp edged configuration.
Claim 6
Dependent Claim
22 words
The device of claim 4 wherein said needle is orientated with the edges thereof in a plane perpendicular to the compression ram.
Claim 7
Dependent Claim
50 words
The device of claim 5 wherein said ejection ram includes a head defining a hollow air chamber, said needle being mounted on said head with the hollow interior of the needle communicating with the hollow chamber of the head, and air passage means communicating the head chamber with the atmosphere.
Claim 8
Dependent Claim
50 words
The device of claim 2 wherein said ejection ram includes a head defining a hollow air chamber, said needle being mounted on said head with the hollow interior of the needle communicating with the hollow chamber of the head, and air passage means communicating the head chamber with the atmosphere.
Claim 9
Dependent Claim
83 words
For use in a material compressing device including a compression chamber, an ejection ram adapted for transverse movement across the chamber, said ejection ram including a forwardly projecting chamber received elongated air extracting needle mounted thereon and movable therewith, said ejection ram including a head defining a hollow air chamber, said needle being mounted on said head, air passage means through said needle and communicated with the hollow chamber Of the head, and air passage means communicating said head chamber with the atmosphere.
Claim 10
Dependent Claim
83 words
For use in a material compressing device including a compression chamber, an ejection ram adapted for transverse movement across the chamber, said ejection ram including a forwardly projecting chamber received elongated air extracting needle mounted thereon and movable therewith, said ejection ram including a head defining a hollow air chamber, said needle being mounted on said head, air passage means through said needle and communicated with the hollow chamber Of the head, and air passage means communicating said head chamber with the atmosphere.
Claim 11
Dependent Claim
56 words
The device of claim 8 wherein said needle is of a tapering configuration decreasing in cross-section forward from the ejection ram, said needle including opposed elongated walls, said walls having engaged upper and lower edges and being slightly convex relative to each other between said edges so as to define a narrow relatively sharp edged configuration.
Claim 12
Dependent Claim
29 words
The device of claim 9 wherein said needle air passage means includes a plurality of holes through the needle walls, said holes being of an inwardly enlarged tapered configuration.
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |