US3347575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detent guide for telescopic tube units
Assignee: MORRIS Manufacturing Co
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Filing: 1965-09-07
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Granted: 1967-10-17
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Expires: 1985-09-07
Abstract
No abstract record available.
Inventors
- 👤 Lowell H Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:53
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/10; F16B7/105; Y; Y10; Y10S; Y10S16/00; Y10S16/39; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/32442; Y10T403/32451
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
IN A TELESCOPIC TUBE UNIT WHICH COMPRISES AN OUTER CYLINDRICAL TUBE AND AN INNER CYLINDRICAL TUBE SLIDABLE AND TURNABLE IN THE OUTER TUBE, A LONGITUDINALLY EXTENDING BEAD PROJECTING RADIALLY INTO THE INTERIOR OF THE OUTER TUBE AND RIGID THEREWITH SAID BEAD BEING NARROW IN CIRCUMFERENTIAL CROSS SECTION SO AS TO ALLOW RELATIVE ROTATION OF SAID TUBES, THE OUTER TUBE HAVING A ROW OF DETENT-RECEIVING HOLES PARALLEL TO AND IMMEDIATELY ADJACENT THE BEAD, SAID BEAD BEING OF CONTINUOUS EXTENT THROUGHOUT THE LONGITUDINAL EXTENT OF THE ROW OF SAID HOLES, THE DIAMETER OF THE INNER TUBE BEING SUCH AS TO HAVE A SLIDING FIT BETWEEN THE RADIALLY INNER EDGE OF THE BEAD AND THE OPPOSED SURFACE OF SAID OUTER TUBE, AND A RADIALLY OUTWARDLY SPRING BIASED DETENT MEANS MOUNTED IN THE INNER TUBE AND PROJECTING THROUGH AN APERTURE THEREIN FOR RADIALLY INWARD YIELDING MOVEMENT FROM A FULLY ADVANCED HOLE-ENGAGING POSITION; THE DETENT, WHEN FREE OF ANY SAID HOLE, BEING ENGAGED AT ITS OUTER END WITH THE INNER SURFACE OF THE OUTER TUBE AND ENGAGEABLE AT A SIDE WITH EITHER SIDE OF THE BEAD AS A GUIDE.
Claim 2
Dependent Claim
184 words
IN A TELESCOPIC TUBE UNIT WHICH COMPRISES AN OUTER CYLINDRICAL TUBE AND AN INNER CYLINDRICAL TUBE SLIDABLE AND TURNABLE IN THE OUTER TUBE, A LONGITUDINALLY EXTENDING BEAD PROJECTING RADIALLY INTO THE INTERIOR OF THE OUTER TUBE AND RIGID THEREWITH SAID BEAD BEING NARROW IN CIRCUMFERENTIAL CROSS SECTION SO AS TO ALLOW RELATIVE ROTATION OF SAID TUBES, THE OUTER TUBE HAVING A ROW OF DETENT-RECEIVING HOLES PARALLEL TO AND IMMEDIATELY ADJACENT THE BEAD, SAID BEAD BEING OF CONTINUOUS EXTENT THROUGHOUT THE LONGITUDINAL EXTENT OF THE ROW OF SAID HOLES, THE DIAMETER OF THE INNER TUBE BEING SUCH AS TO HAVE A SLIDING FIT BETWEEN THE RADIALLY INNER EDGE OF THE BEAD AND THE OPPOSED SURFACE OF SAID OUTER TUBE, AND A RADIALLY OUTWARDLY SPRING BIASED DETENT MEANS MOUNTED IN THE INNER TUBE AND PROJECTING THROUGH AN APERTURE THEREIN FOR RADIALLY INWARD YIELDING MOVEMENT FROM A FULLY ADVANCED HOLE-ENGAGING POSITION; THE DETENT, WHEN FREE OF ANY SAID HOLE, BEING ENGAGED AT ITS OUTER END WITH THE INNER SURFACE OF THE OUTER TUBE AND ENGAGEABLE AT A SIDE WITH EITHER SIDE OF THE BEAD AS A GUIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |