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US3798186A Expired / Lapsed US ⏱️ 0.0 years remaining

Composition for plugging formations having pores in constructive works

Assignee: Takenaka Komuten Co Ltd
•
Filing: 1971-05-11
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Granted: 1974-03-19
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Expires: 1991-05-11
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Abstract

Abstract THIS INVENTION RELATES TO COMPOSITION FOR PLUGGING FORMATIONS IN CIVIL ENGINEERING AND CONSTRUCTION, REIN FORCED UNDERGROUND STRUCTURE AND UNDERGROUND STRUCTURE REQUIRED FOR STRENGTHENING THE GROUND THEREOF, WHICH MAY BE EFFECTIVELY UTILIZED IN PLUGGING OR IN STRENGTHENING UNSTABLE GROUND IN SEALING-OFF POINTS OF WATER LEAKAGE OR OIL LEAKAGE IN CIVIL ENGINEERING AND CONSTRUCTION, IN PREVENTING GAS LEAKS IN SOILS OR IN CONSTRUCTION, OR IN INCREASING BEARING CAPACITIES OF PULL-OUT OR PUSH-IN PILES TO BE CONSTRUCTED. THUS, THE INVENTION IS INTENDED TO PROVIDE A COMPOSITION FOR PLUGGINH FORMATION HAVING INTERSTICES AND A COMPOSITIONS FOR COMPACTING FORMATIONS BY FILLING INTERSTICES WITH A SOLIDIFIED SUBSTANCE AND ALSO PROVIDE A REINFORCED GROUND STRUCTURE AND AN UNDERGROUND STRUCTURE FOR REINFORCING THE GROUND, CHARACTERIZED IN THAT A FLUIDAL SUBSTANCE, SUCH AS AN ISOCYANATE COMPOUND, WHICH UPON COMING INTO CONTACT WITH WATER, REACTS THEREBY TO PRODUCE WATER-INSOLUBLE SOLIDIFIED SUBSTANCE AND LIBERATING A GAS, IS FORCED TO BE PRESENT IN THE INTERSTICES IN FORMATIONS SUCH AS WATER LEAKAGE REGIONS IN CIVIL ENGINEERING AND CONSTRUCTION AND A GROUND OR WEAK GROUND WHERE WATER LEAKAGE OR WATER AND THE RESULTING INSOLUBLE SOLIDIFIED SUBWITH THE WATER AND THE RESULTING INSOLUBLE SOLIDIFIED SUBSTANCE IS ALLOWED TO BE INTIMATELY BONDED TO THE SURFACES OF THE INTERSTICES UNDER THE PRESSURE OF THE LIBERATED GAS, THEREBY SEALING-OFF THE INTERSTICES EASILY AND EFFECTIVELY.

Inventors

  • 👤 S Nakade
  • 👤 H Kubota
  • 👤 T Oshita
  • 👤 K Sakane

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 20:32
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/50; C09K8/504; C09K8/506; C09K8/508; C09K8/5086; C09K17/00; C09K17/40; C09K17/48; E; E02; E02D; E02D5/00; E02D5/74; E02D5/80; E02D5/808

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) 1977-03-18 1977-09-17 1978-03-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-03-18 1981-09-17 1982-03-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-03-18 1985-09-17 1986-03-19 $7700.00 Window Closed / Lapsed

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