US3774890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for working moldable material
Assignee: Individual
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Filing: 1971-04-09
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Granted: 1973-11-27
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Expires: 1991-04-09
Abstract
Abstract An apparatus and method for processing and forming material to shape by molding. The material is rendered molten in a chamber and, while disposed therein, forces are applied to the material to densify, degasify and improve its internal structural characteristics by predetermining the shape of the crystalline or spherulite micro-structure. In one form, shock waves of predetermined frequency and intensity are applied to the molten material prior to and during its solidification in a die or mold. In another form, the material is intermittently advanced by a series of compressions applied in such a manner as to densify and predetermine the characteristics thereof when molded to shape.
Inventors
- 👤 Jerome H Lemelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:01
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/22; B30B11/26; B21; B21C; B21C23/00; B21C23/02; B21C23/04; B21C23/08; B21C23/085; B21C25/00; B21C25/08; B21C35/00; B21C35/02; B21C35/023; B22; B22F; B22F3/00; B22F3/20; B29; B29C; B29C48/00; B29C48/001; B29C48/0022; B29C48/25; B29C48/36; B29C48/475; B29C48/50; B29C48/505; B29C48/53; B01; B01J; B01J2203/00; B01J2203/06; B01J2203/0605; B01J2203/061; B01J2203/065; B01J2203/0655; B29C48/03; B29C48/365; H; H05; H05K; H05K2203/00; H05K2203/17; H05K2203/175
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
70 words
An apparatus for working and molding material to shape comprising: first means for feeding a moldable material, second means for receiving and forming said moldable material to shape, and third means predeterminately disposed with respect to said first and second means and operable to impart a plurality of shock waves to said moldable material for working same and improving its characteristics and the characteristics of the molded product formed therefrom.
Claim 2
Independent Claim
70 words
An apparatus for working and molding material to shape comprising: first means for feeding a moldable material, second means for receiving and forming said moldable material to shape, and third means predeterminately disposed with respect to said first and second means and operable to impart a plurality of shock waves to said moldable material for working same and improving its characteristics and the characteristics of the molded product formed therefrom.
Claim 3
Dependent Claim
45 words
An apparatus in accordance with claim 1 wherein said third means is a piston disposed in direct contact with said moldable material and means for oscillating said piston in such a manner as to impart said shock waves to said moldable material engaging said piston.
Claim 4
Dependent Claim
39 words
An apparatus in accordance with claim 1 wherein said third means is a member contacting said moldable material, and means for generating (and directing) shock waves in said member and directing said shock waves therethrough to said moldable material.
Claim 5
Dependent Claim
26 words
An apparatus in accordance with claim 3 wherein said means for generating shock waves comprises means for generating explosions and directing said explosions against said member.
Claim 6
Dependent Claim
53 words
An apparatus in accordance with claim 1 wherein said first means includes an injection screw, means for power rotating said injection screw so as to feed said moldable material, and said second means comprises a mold with a molding cavity and an opening thereto for receiving moldable material fed by said injection screw.
Claim 7
Dependent Claim
40 words
An apparatus in accordance with claim 5 wherein said third means is operably coupled to said injection screw to impart shock waves thereto which shock waves are imparted from said screw to the molding material fed thereby to said mold.
Claim 8
Dependent Claim
73 words
An apparatus in accordance with claim 1 wherein said first means is an extrusion screw, means for feeding moldable material to said screw, means for power rotating said screw to move material fed thereto; said second means comprises an extrusion die with an opening therethrough for defining the shape of an extrusion and passageway means between said screw and said die for directing the material fed by said screw to said die opening.
Claim 9
Dependent Claim
38 words
An apparatus in accordance with claim 7 wherein said third means is coupled to transmit shock waves to said extrusion screw which, in turn, is operable to transmit said shock waves to the molding material in said passagway.
Claim 10
Dependent Claim
50 words
An apparatus in accordance with claim 8 including fourth means operable to block and permit the flow of material from said die and means for operating said fourth means in a manner to retain material in the die while said third means operates and imparts shock waves to said material.
Claim 11
Dependent Claim
53 words
An apparatus in accordance with claim 1 wherein said third means includes an intense magnetic field generating means and means for energizing said magnetic field generating means in such a manner as to cause it to generate and vary a magnetic field of sufficient intensity to impart shock waves to said moldable material.
Claim 12
Dependent Claim
35 words
An apparatus in accordance with claim 10 wherein said intense magnetic field generating means comprises coil means located and operable to impart shock waves to said second means while the molding material is disposed therein.
Claim 13
Dependent Claim
51 words
An apparatus in accordance with claim 1 wherein said third means is a rigid member in direct contact with said moldable material and means for moving siad rigid member against said moldable material in such a manner as to cause it to impart shock waves thereto for working said moldable material.
Claim 14
Dependent Claim
38 words
An apparatus in accordance with claim 1 wherein said third means is disposed in direct contact with said moldable material for imparting shock waves to said moldable material while said moldable material is disposed within said second means.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |