Patent US3223341A successfully refreshed from Google Patents.
US3223341A
Expired / Lapsed
US
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Expansible mandrel
Assignee: Amals Gjuteri Och Mekaniska Verkstad AB
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Filing: 1964-02-14
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Granted: 1965-12-14
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Expires: 1984-02-14
Abstract
No abstract record available.
Inventors
- 👤 Gadde Tore Lennart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:26
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/24; B65H75/242; B65H75/243; B65H75/2437
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
246 words
AN EXPANSIBLE MANDREL COMPRISING AN ELONGATED BODY, A NOTCH IN SAID BODY, EXPANDING MEANS COMPRISING A TUBULAR, INFLATABLE MEMBER IN SAID NOTCH, SAID MEMBER BEING ADAPTED TO BE INFLATED TO EXTEND LATERALLY BEYOND THE PERIPHERY OF SAID BODY AND THEREBY TO EXPAND THE MANDREL, A CONDUIT OPENING AT ONE END AT THE OUTSIDE OF SAID BODY AND AT THE OTHER END OF SAID NOTCH AND ADAPTED AT ITS OPENING OUTSIDE SAID BODY TO COMMUNICATE WITH A SOURCE OF A LIQUID TO INFLATE SAID INFLATABLE MEMBER, AN APERTURE IN THE WALL OF SAID INFLATABLE MEMBER LOCATED TOWARD AN END OF SAID INFLATABLE MEMBER, SAID APERTURE BEING IN REGISTRY WITH THE CONDUIT OPENING AT THE NOTCH, A NIPPLE COMPRISING A HEAD AND A TUBE PIECE, SAID NIPPLE HEAD BEING POSITIONED IN SAID INFLATABLE MEMBER ADJACENT SAID APERTURE AND SAID TUBE PIECE EXTENDING THROUGH SAID APERTURE AND INTO SAID CONDUIT, A CHANNEL THROUGH SAID NIPPLE AND OPENING AT ONE END AT SAID NIPPLE HEAD INSIDE SAID INFLATABLE MEMBER AND AT THE OTHER END AT SAID TUBE PIECE INSIDE SAID CONDUIT, A PRESSING ELEMENT IN JUXTAPOSITION TO THE APERTURED END OF SAID INFLATABLE MEMBER AT THE OUTSIDE OF THE WALL OF SAID INFLATABLE MEMBER OPPOSITE THE APERTURED WALL, MEANS TO URGE THE PRESSING ELEMENT AGAINST SAID INFLATABLE MEMBER WHEREBY THE WALLS OF THE SAID INFLATABLE MEMBER ARE PRESSED TOGETHER AND AGAINST THE NIPPLE HEAD AND THE APERTURED WALL OF THE INFLATABLE MEMBER IS PRESSED AGAINST THE BOTTOM OF THE NOTCH.
Claim 2
Dependent Claim
246 words
AN EXPANSIBLE MANDREL COMPRISING AN ELONGATED BODY, A NOTCH IN SAID BODY, EXPANDING MEANS COMPRISING A TUBULAR, INFLATABLE MEMBER IN SAID NOTCH, SAID MEMBER BEING ADAPTED TO BE INFLATED TO EXTEND LATERALLY BEYOND THE PERIPHERY OF SAID BODY AND THEREBY TO EXPAND THE MANDREL, A CONDUIT OPENING AT ONE END AT THE OUTSIDE OF SAID BODY AND AT THE OTHER END OF SAID NOTCH AND ADAPTED AT ITS OPENING OUTSIDE SAID BODY TO COMMUNICATE WITH A SOURCE OF A LIQUID TO INFLATE SAID INFLATABLE MEMBER, AN APERTURE IN THE WALL OF SAID INFLATABLE MEMBER LOCATED TOWARD AN END OF SAID INFLATABLE MEMBER, SAID APERTURE BEING IN REGISTRY WITH THE CONDUIT OPENING AT THE NOTCH, A NIPPLE COMPRISING A HEAD AND A TUBE PIECE, SAID NIPPLE HEAD BEING POSITIONED IN SAID INFLATABLE MEMBER ADJACENT SAID APERTURE AND SAID TUBE PIECE EXTENDING THROUGH SAID APERTURE AND INTO SAID CONDUIT, A CHANNEL THROUGH SAID NIPPLE AND OPENING AT ONE END AT SAID NIPPLE HEAD INSIDE SAID INFLATABLE MEMBER AND AT THE OTHER END AT SAID TUBE PIECE INSIDE SAID CONDUIT, A PRESSING ELEMENT IN JUXTAPOSITION TO THE APERTURED END OF SAID INFLATABLE MEMBER AT THE OUTSIDE OF THE WALL OF SAID INFLATABLE MEMBER OPPOSITE THE APERTURED WALL, MEANS TO URGE THE PRESSING ELEMENT AGAINST SAID INFLATABLE MEMBER WHEREBY THE WALLS OF THE SAID INFLATABLE MEMBER ARE PRESSED TOGETHER AND AGAINST THE NIPPLE HEAD AND THE APERTURED WALL OF THE INFLATABLE MEMBER IS PRESSED AGAINST THE BOTTOM OF THE NOTCH.
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |