Patent US3269282A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3269282A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for providing failure planes in concrete

Assignee: Individual
•
Filing: 1964-06-11
•
Granted: 1966-08-30
•
Expires: 1984-06-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Robert L Beesley
  • 👤 Robert F Dill

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 11:22
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/02; E01C23/026

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 158 words
A FLEXIBLE RIBBON PLACEMENT MEANS COMPRISING: A GENERALLY FLAT BLADE HAVING TWO SIDES; MEANS TO IMMERSE SAID BLADE IN A PLASTIC MEANS HAVING A TOP SURFACE; MEANS TO MOVE SAID IMMERSED BLADE THROUGH SAID PLASTIC MASS; AN INCLINED GUIDE CARRIED BY SAID BLADE, SAID INCLINED GUIDE HAVING A STRAIGHT EDGE ADAPTED TO CONTACT AND FOLD A FLEXIBLE RIBBON AS IT PASSES FROM ONE SIDE OF SAID BLADE TO THE OTHER, SAID MEANS TO IMMERSE BEING ADAPTED TO POSITION SAID BLADE WITH THE PLANE IN THE DIRECTION OF ITS MOTION SO THAT SAID STRAIGHT EDGE EXTENDS BENEATH SAID TOP SURFACE AT AN INCLINED ANGLE TO SAID TOP SURFACE; AND MEANS TO FEED A FLEXIBLE RIBBON ALONG ONE SIDE OF SAID BLADE TO SAID GUIDE, SAID MEANS TO FEED BEING ADAPTED TO FEED SAID FLEXIBLE RIBBON SO THAT THE EDGE OF SAID RIBBON IS AT AN ANGLE INCIDENT TO SAID TOP SURFACE, SAID INCIDENT ANGLE BEING TWICE SAID INCLINED ANGLE.
Claim 2
Dependent Claim 158 words
A FLEXIBLE RIBBON PLACEMENT MEANS COMPRISING: A GENERALLY FLAT BLADE HAVING TWO SIDES; MEANS TO IMMERSE SAID BLADE IN A PLASTIC MEANS HAVING A TOP SURFACE; MEANS TO MOVE SAID IMMERSED BLADE THROUGH SAID PLASTIC MASS; AN INCLINED GUIDE CARRIED BY SAID BLADE, SAID INCLINED GUIDE HAVING A STRAIGHT EDGE ADAPTED TO CONTACT AND FOLD A FLEXIBLE RIBBON AS IT PASSES FROM ONE SIDE OF SAID BLADE TO THE OTHER, SAID MEANS TO IMMERSE BEING ADAPTED TO POSITION SAID BLADE WITH THE PLANE IN THE DIRECTION OF ITS MOTION SO THAT SAID STRAIGHT EDGE EXTENDS BENEATH SAID TOP SURFACE AT AN INCLINED ANGLE TO SAID TOP SURFACE; AND MEANS TO FEED A FLEXIBLE RIBBON ALONG ONE SIDE OF SAID BLADE TO SAID GUIDE, SAID MEANS TO FEED BEING ADAPTED TO FEED SAID FLEXIBLE RIBBON SO THAT THE EDGE OF SAID RIBBON IS AT AN ANGLE INCIDENT TO SAID TOP SURFACE, SAID INCIDENT ANGLE BEING TWICE SAID INCLINED ANGLE.

References Cited (Backward Citations)

US1982387A Cited
US1974240A Cited
US2025449A Cited
US3194130A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-08-29 1970-02-28 1970-08-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-08-29 1974-02-28 1974-08-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-08-29 1978-02-28 1978-08-30 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag