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US3754059A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for the manufacture of a quasi-homogeneous formation

Assignee: AN DER EIDG TECHN HOCHSCHULE G
•
Filing: 1970-06-12
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Granted: 1973-08-21
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Expires: 1990-06-12
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Abstract

Abstract A method of manufacturing a quasi-homogeneous formation from a plurality of separate particles of different size. The particles are separated into fractions according to size, which fractions together are required for filling a certain container volume. The amount of each fraction is determined so that when the particles are within the container, the smaller particles will fill out the hollow space between the larger particles. The determined amounts of all fractions are divided into several partial amounts in regularly distributed arrangement. Thereafter the uppermost particle layer, to avoid decomposition, is loaded by a pressure force, and the container is exposed to a vibration to reduce the spaces between the particles thereby creating a quasi-homogeneous formation.

Inventors

  • 👤 G Prantl
  • 👤 I Horvath

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 16:22
CPC Classifications
G; G21; G21C; G21C21/00; G21C21/02; G21C21/04; Y; Y02; Y02E; Y02E30/00; Y02E30/30

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1976-08-20 1977-02-19 1977-08-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-08-20 1981-02-19 1981-08-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-08-20 1985-02-19 1985-08-21 $7700.00 Window Closed / Lapsed

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