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US3103770A Expired / Lapsed US ⏱️ 0.0 years remaining

Technique for shaping crystalline spheres

Assignee: Individual
•
Filing: 1960-08-31
•
Granted: 1963-09-17
•
Expires: 1980-08-31
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Abstract

No abstract record available.

Inventors

  • 👤 John L Carter
  • 👤 Edward V Edwards
  • 👤 Reingold Irving
  • 👤 Donald L Fresh

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 18:20
CPC Classifications
B; B24; B24B; B24B11/00; B24B11/02; B24B11/04; B24B11/06

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 148 words
A TECHNIQUE FOR SHAPING SPHERES FROM CRUDELY SHAPED CRYSTALLINE WORKPIECES OF CERAMIC-LIKE MATERIAL COMPRISING INSERTING THE WORKPIECES ONE AT A TIME IN A VERTICAL TUBULAR HOLDER OPEN AT TOP AND BOTTOM HAVING ITS BORES SLIGHTLY GREATER THAN THE MAXIMUM DIMENSION OF THE WORKPIECE, PRESENTING THE WORKPIECE TO A FLAT ABRASIVE SURFACE, THE WORKPIECE HAVING ALL ITS TOTAL BULK SITUATED AT DISTANCES FROM ITS CENTER OF GRAVITY HAVING RELATIVELY LOW RATIOS, RAPIDLY MOVING SAID ABRADING SURFACE IN A PLANE PERPENDICULAR TO SAID HOLDER AND CLOSE TO THE BOTTOM END THEREOF, CAUSING THE PROTRUDING AREAS OF SAID WORKPIECES TO BE ENGAGED BY SAID ABRADING SURFACE TO REMOVE PORTIONS THEREOF AS THE WORKPIECE IS GIVEN UNIVERSAL ROTATION ABOUT CONSTANTLY CHANGING AXES WITHIN ITS OWN BOUNDARIES AND PERMITTING FREE UPWARD MOVEMENT THEREOF WHEREBY REMOVAL OF MATERIAL FROM THE WORKPIECE WILL TAKE PLACE ACCORDING TO A NATURAL GEOMETRICAL PATTERN TO FORM A SPHERE.
Claim 2
Dependent Claim 148 words
A TECHNIQUE FOR SHAPING SPHERES FROM CRUDELY SHAPED CRYSTALLINE WORKPIECES OF CERAMIC-LIKE MATERIAL COMPRISING INSERTING THE WORKPIECES ONE AT A TIME IN A VERTICAL TUBULAR HOLDER OPEN AT TOP AND BOTTOM HAVING ITS BORES SLIGHTLY GREATER THAN THE MAXIMUM DIMENSION OF THE WORKPIECE, PRESENTING THE WORKPIECE TO A FLAT ABRASIVE SURFACE, THE WORKPIECE HAVING ALL ITS TOTAL BULK SITUATED AT DISTANCES FROM ITS CENTER OF GRAVITY HAVING RELATIVELY LOW RATIOS, RAPIDLY MOVING SAID ABRADING SURFACE IN A PLANE PERPENDICULAR TO SAID HOLDER AND CLOSE TO THE BOTTOM END THEREOF, CAUSING THE PROTRUDING AREAS OF SAID WORKPIECES TO BE ENGAGED BY SAID ABRADING SURFACE TO REMOVE PORTIONS THEREOF AS THE WORKPIECE IS GIVEN UNIVERSAL ROTATION ABOUT CONSTANTLY CHANGING AXES WITHIN ITS OWN BOUNDARIES AND PERMITTING FREE UPWARD MOVEMENT THEREOF WHEREBY REMOVAL OF MATERIAL FROM THE WORKPIECE WILL TAKE PLACE ACCORDING TO A NATURAL GEOMETRICAL PATTERN TO FORM A SPHERE.

References Cited (Backward Citations)

US422966A Cited
US2734317A Cited
US779646A Cited
US2075216A Cited
US2115404A Cited
DE725251C Cited
US2382099A Cited
US2703470A Cited
US2842906A Cited
US2912799A Cited
US2895261A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-09-16 1967-03-18 1967-09-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-09-16 1971-03-18 1971-09-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-09-16 1975-03-18 1975-09-17 $7700.00 Window Closed / Lapsed

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