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US3587361A Expired / Lapsed US ⏱️ 0.0 years remaining

No tool detection system and tool holder

Assignee: Individual
•
Filing: 1969-03-05
•
Granted: 1971-06-28
•
Expires: 1989-03-05
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Abstract

Abstract A "NO TOOL," "BROKEN TOOL" OR "IMPROPERLY SET TOOL" DETECTION DEVICE FOR USE WITH TAPS, DRILLS, REAMERS, BORING TOOLS, COUNTER BORES AND MILLING CUTTERS WHICH INCLUDES A TOOL HOLDER AND A MOVABLE SHELL THEREON NORMALLY BIASED OUTWARDLY OF EACH OTHER, WITH A RADIOACTIVE ELEMENT ON THE HOLDER AND THE SHELL NORMALLY SPACED FROM THE RADIOACTIVE ELMENT, IN CONJUNCTION WITH A RADIATION DETECTION SYSTEM WHEREBY UPON COMPRESSIVE ENGAGEMENT OF THE TOOL WITH A WORK PIECE DUE TO ITS LONGITUDINAL FEED, THERE WILL BE A RELATIVE MOVEMENT OF THE TOOL HOLDER AND SHELL SUCH AS WILL POSITION SAID SHELL TO PROTECTIVELY ENCLOSE SAID RADIATION ELEMENT, SAID RELATIVE MOVEMENT BEING PREVENTED WHEN THERE IS "NO TOOL," "A BROKEN TOOL" OR AN "IMPROPERLY SET TOOL", AND THE METHOD OF PROVIDING SAID DETECTION SYSTEM.

Inventors

  • 👤 Theodore M Smith

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 00:29
CPC Classifications
B; B23; B23Q; B23Q11/00; B23B; B23B49/00; B23B49/001; Y; Y10; Y10T; Y10T408/00; Y10T408/21; Y10T409/00; Y10T409/30; Y10T409/30392

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) 1974-06-27 1974-12-27 1975-06-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-06-27 1978-12-27 1979-06-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-06-27 1982-12-27 1983-06-28 $7700.00 Window Closed / Lapsed

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