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US3616649A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for casting large monolithic concrete structures

Assignee: Individual
•
Filing: 1970-04-10
•
Granted: 1971-11-02
•
Expires: 1990-04-10
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Abstract

Abstract THIS DISCLOSURE DESCRIBES A METHOD AND APPARATUS FOR CASTING CONCRETE SWIMMING POOLS, TANKS OR WALLS, ETC. IN THE BELOW-THE-GROUND APPLICATIONS, THE PREFERRED METHOD GENERALLY COMPRISES THE STEPS OF: EXCAVATING A HOLE IN THE EARTH, PLACING INNER PERMANENTLY PREBRACED FORMS IN THE HOLE, ALIGNING THE FORMS IN SPACED RELATIONSHIP WITH THE SIDES OF THE HOLE, LOCKING THE FORMS TOGETHER IN ONE OPEN POSITION, ANCHORING THE FORMS IN THE HOLE, FILLING OPEN SPACES IN THE SIDES OF THE FORMS, POURING CONCRETE BETWEEN THE FORMS AND THE SIDES OF THE HOLE, DISCONNECTING THE FORMS, CLOSING THE FORMS, REMOVING THE FORMS, AND, POURING A BOTTOM. THE APPARATUS IS ADAPTED TO CARRY OUT THE METHOD AND GENERALLY COMPRISES A PLURALITY OF INNER PERMANENTLY PREBRACED FORM SECTIONS. EACH FORM SECTION INCLUDES OUTSIDE WALL SURFACES THAT DEFINE THE INNER WALLS OF THE POLL, OR THE LIKE. THESE FORM SECTIONS ARE BRACED AGAINST INNER OR CENTER BRACE MEMBERS. THE INNER BRACE MEMBERS OF EACH FORM SECTION ARE LOCKED TO INNER BRACE MEMBERS OF OTHER FORM SECTIONS IN A SEPARATED, PREDETERMINED RELATIONSHIP. ALSO INCLUDED ARE MEANS FOR FILLING WALL SPACES OCCURRING BETWEEN THE WALL SURFACES OF ADJACENT FORM SECTIONS, AND, WHERE APPLICABLE, MEANS FOR ATTACHING THE FORM SECTIONS TO THE BOTTOM OF A HOLE. IN ADDITION, IN CONNECTION WITH SWIMMING POOLS MEANS ARE PROVIDED FOR FORMING A COPING AT THE UPPER EDGES OF THE WALL SURFACES OF THE FORM SECTIONS.

Inventors

  • 👤 Randolph Neil Laing

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 03:49
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/06; E04G11/08; E04G11/10; E04H; E04H4/00; E04H4/0075; E04H4/0081

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) 1974-11-01 1975-05-03 1975-11-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-11-01 1979-05-03 1979-11-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-11-01 1983-05-03 1983-11-02 $7700.00 Window Closed / Lapsed

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