US3824060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making shaped bodies
Assignee: Vereinigte Aluminium Werke AG
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Filing: 1973-01-12
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Granted: 1974-07-16
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Expires: 1993-01-12
Abstract
Abstract An apparatus for producing coherent shaped bodies from granular material. The granular material is confined in a mold and the mold is subjected to vibratory motions requisite for compacting the granular material. In accordance with the invention the frequency of the vibratory motions is continuously varied.
Inventors
- 👤 G Helmrich
- 👤 F Wulfing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:40
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/02; B30B11/022
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
An apparatus for cOmpacting granular material so as to transform it into a coherent body, comprising a mold adapted to accommodate a mass of granular material and having an upper open side; a vibratory platform supporting said mold; a weight adapted to pass through said upper open side and to rest in unconfined state on said mass of material in said mold freely movable relative to the mass; a traverse extending upwardly from said platform across said mold and being connected with said weight so that the latter may be raised and lowered relative to said mold, said mold, weight, platform and traverse together constituting a vibratory system; a plurality of uprights laterally of said system, and roller means cooperating with said system and said uprights and supporting the former with reference to the latter; and means for imparting vibratory stresses to said material via said mold and weight.
Claim 2
Independent Claim
149 words
An apparatus for cOmpacting granular material so as to transform it into a coherent body, comprising a mold adapted to accommodate a mass of granular material and having an upper open side; a vibratory platform supporting said mold; a weight adapted to pass through said upper open side and to rest in unconfined state on said mass of material in said mold freely movable relative to the mass; a traverse extending upwardly from said platform across said mold and being connected with said weight so that the latter may be raised and lowered relative to said mold, said mold, weight, platform and traverse together constituting a vibratory system; a plurality of uprights laterally of said system, and roller means cooperating with said system and said uprights and supporting the former with reference to the latter; and means for imparting vibratory stresses to said material via said mold and weight.
Claim 3
Dependent Claim
42 words
An apparatus as defined in claim 1, further comprising at least one guide rod fast with and projecting from said weight, and a guide arrangement on said traverse engaging said guide rod, whereby said weight is guided during raising and lowering thereof.
Claim 4
Dependent Claim
32 words
An apparatus as defined in claim 1, further comprising connecting means connecting said weight with said platform but with freedom of movement of said weight relative to said mass of granular material.
Claim 5
Dependent Claim
28 words
An apparatus as defined in claim 3; wherein said connecting means connects said weight with said platform with freedom of movement relative to said platform and said mold.
Claim 6
Dependent Claim
34 words
An apparatus as defined in claim 1, and further comprising pressure-exerting means operative for exerting upon said quantity of granular material in said mold a pressure in addition to that exerted by said weight.
Claim 7
Dependent Claim
53 words
An apparatus as defined in claim 5, said pressure-exerting means comprising a cylinder and piston arrangement mounted on said platform rigid therewith and above said open top of said mold, and wherein said arrangement is operative for exerting pressure upon said weight and thereby upon said granular material on which said weight rests.
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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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |