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US3556600A Expired / Lapsed US ⏱️ 0.0 years remaining

Distribution and cutting of rocks,glass and the like

Assignee: Westinghouse Electric Corp
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Filing: 1968-08-30
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Granted: 1971-01-19
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Expires: 1988-08-30
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Abstract

Abstract A METHOD IS DISCLOSED FOR DRILLING HOLES, EXCAVATING AND/OR TUNNELING IN ROCKY TERRAIN OR CUTTING OR BREAKING UP ROCK OR GLASS WITH A CORPUSCULAR BEAM, OF ELECTRONS OR IONS OF HIGH ENERGY DENSITY, TYPICALLY EXCEEDING ABOUT 10**6 WATTS PER SQUARE CENTIMETER. THE BEAM IS PROJECTED INTO THE ATMOSPHERE FROM THE CHAMBER IN WHICH IT IS GENERATED. MOLTEN MATERIAL, FUMES AND DUST MAY BE BLASTED AWAY BY A STREAM OF GAS, WATER OR STEAM. THE SURFACE BEING IMPINGED BY THE BEAM MAY ADVANTAGEOUSLY BE UNDER WATER. THE PARTICLES OF THE BEAM MAY ALSO HAVE VERY HIGH ENERGY (ACCELERATING VOLTAGE ONE MILLION TO 100 MILLION VOLTS) TO PRODUCE A BLASTING EFFECT UNDER THE SURFACE OF THE MATERIAL BEING DISRUPTED.

Inventors

  • 👤 William E Shoupp
  • 👤 Berthold W Schumacher

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 13:51
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/22; B28D1/221; E; E21; E21C; E21C37/00; E21C37/18; H; H01; H01J; H01J37/00; H01J37/30; H01J37/301; Y; Y10; Y10S; Y10S65/00; Y10S65/04

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) 1974-01-18 1974-07-20 1975-01-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-18 1978-07-20 1979-01-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-18 1982-07-20 1983-01-19 $7700.00 Window Closed / Lapsed

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