Notching apparatus
Abstract
Abstract THIS INVENTION RELATES TO NOTCHING APPARTUS FOR FORMING REFERENCE STANDARD NOTCHES IN WORKPIECE FOR USE AS A REFERENCE STANDARDD IN THE INSPE TION OF METAL PRODUCTS, SUCH AS PIPE, BAR, PLATE AND THE LIKE, FOR INTERNAL DISCONTINUITIES THEREIN BY ULTRASONIC EDDY CURRENT, FRINGE FLUX SYSTEMS, AND THE LIKE. THE NOTCHING APPARATUS FOR FORMING A REFERENCE NOTCH OF PREDETERMINED DEPTH IN A WORKPIECE HAS A BASE FRAME POSITIONED IN A NOTCH FORMING POSITION WITH RESPECT TO THE WORKPIECE PREPARATORY FOR THE FORMING OF THE NOTCH. A SLIDE FRAME IS RECIPROCABLE ON THE BASE FRAME AND MAGNETIC GRIPPING MEANS ARE ON THE BASE FRAME AND ARRANGEABLE WITH THE WORKPIECE TO SECURE THE APPARATUS WITH RESPECT TO THE WORKPIECE IN THE NOTCH FORMING POSITION. NOTCHING MEANS ARE RECIPROCABLE ON THE SLIDE FRAME TOWARD AND AWAY FROM THE WORKPIECE. DRIVE MEANS ARE ON THE SLIDE FRAME, ARE CONNECTED TO THE NOTCHING MEANS AND ARE UTILIZED FOR CAUSING CUTTING MOVEMENT OF THE NOTCHING MEANS. RECIPROCATING DRIVE MEANS ON THE SLIDE FRAME ARE CONNECTED TO THE NOTCHING MEANS AND CAUSE THE NOTCHING MEANS TO CUT THE NOTCH TO THE PREDETERMINED DEPTH.
Inventors
- 👤 Wayne L Briney
- 👤 William L Zemberry
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |