Patent DE2808757C2 successfully refreshed from Google Patents.
US3481803A
Expired / Lapsed
US
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Friction welding
Assignee: UNIROYAL PLASTICS COMPANY Inc WORLD HEADQUARTERS MIDDLEBURY CT 06749 A CORP OF
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Filing: 1966-10-19
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Granted: 1969-12-02
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Expires: 1986-10-19
Abstract
No abstract record available.
Inventors
- 👤 Eugene E Hewitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:28
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/12; B23K20/129; B23K20/1295; B29; B29C; B29C65/00; B29C65/02; B29C65/06; B29C65/0672; B29C65/56; B29C65/562; B29C65/564; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/114; B29C66/40; B29C66/41; B29C66/43; B29C66/434; B29C66/4344; B29C66/43441; B29C66/70; B29C66/71; B29C66/712; B29C66/72; B29C66/723; B29C66/727; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B29C66/84; B29C66/861; B29C66/20; B29C66/21; B29C66/731; B29C66/7316; B29C66/73161; B29C66/737; B29C66/7375; B29C66/73755; B29C66/7394; B29C66/74; B29C66/742; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2023/10; B29K2023/12; B29K2025/00; B29K2027/00; B29K2027/06; B29K2027/12; B29K2027/18; B29K2033/00; B29K2033/04; B29K2033/12; B29K2055/00; B29K2055/02; B29K2059/00; B29K2063/00; B29K2069/00; B29K2077/00; B29K2101/00; B29K2101/10; B29K2101/12; B29K2105/00; B29K2105/04; B29L; B29L2009/00; Y; Y10; Y10S; Y10S411/00; Y10S411/904; Y10S411/908; Y10S411/955; Y10S411/965
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
IN A METHOD OF CONNECTING A THERMOPLASTIC FASTENING MEMBER TO AN EXPANDED-CORE-TYPE THERMOPLASTIC SHEET MEMBER, THE STEPS OF PLACING SAID SHEET MEMBER AND SAID FASTENING MEMBER INTO ENGAGEMENT, WITH AN AXIS OF SYMMETRY OF SAID FASTENING MEMBER LOCATED SUBSTANTIALLY NORMAL TO AN EXPOSED EDGE FACE OF SAID SHEET MEMBER; PRESSING SAID MEMBERS AGAINST EACH OTHER IN A DIRECTION TO PENETRATE SAID SHEET EDGEWISE WITH SAID FASTENING MEMBER WHILE SIMULTANEOUSLY SPINNING SAID ELONGATED FASTENING MEMBER ABOUT SAID AXIS AND WITH RESPECT TO SAID SHEET MEMBER AT A SPEED SUFFICIENT TO FRICTIONALLY CREATE BETWEEN SAID MEMBERS A TEMPERATURE WHICH WILL MELT THE MATERIAL OF SAID MEMBERS WHERE THEY FRICTIONALLY ENGAGE EACH OTHER, SO THAT DURING THE SPINNING OF SAID FASTENING MEMBER WITH RESPECT TO SAID SHEET THE PRESSURE OF SAID SHEET AND FASTENING MEMBER AGAINST EACH OTHER WILL PROGRESSIVELY DISPLACE SAID FASTENING MEMBER INTO SAID SHEET MEMBER; AND TERMINATING THE SPINNING OF SAID FASTENING MEMBER WITH RESPECT TO SAID SHEET MEMBER AFTER SAID FASTENING MEMBER HAS PROGRESSED A GIVEN EXTENT INTO SAID SHEET MEMBER, SO THAT THEREAFTER THE MOLTEN MATERIAL OF SAID MEMBERS WILL SOLIDIFY AND SAID FASTENING MEMBER WILL BECOME FIXEDLY JOINED TO SAID SHEET MEMBER.
Claim 2
Dependent Claim
195 words
IN A METHOD OF CONNECTING A THERMOPLASTIC FASTENING MEMBER TO AN EXPANDED-CORE-TYPE THERMOPLASTIC SHEET MEMBER, THE STEPS OF PLACING SAID SHEET MEMBER AND SAID FASTENING MEMBER INTO ENGAGEMENT, WITH AN AXIS OF SYMMETRY OF SAID FASTENING MEMBER LOCATED SUBSTANTIALLY NORMAL TO AN EXPOSED EDGE FACE OF SAID SHEET MEMBER; PRESSING SAID MEMBERS AGAINST EACH OTHER IN A DIRECTION TO PENETRATE SAID SHEET EDGEWISE WITH SAID FASTENING MEMBER WHILE SIMULTANEOUSLY SPINNING SAID ELONGATED FASTENING MEMBER ABOUT SAID AXIS AND WITH RESPECT TO SAID SHEET MEMBER AT A SPEED SUFFICIENT TO FRICTIONALLY CREATE BETWEEN SAID MEMBERS A TEMPERATURE WHICH WILL MELT THE MATERIAL OF SAID MEMBERS WHERE THEY FRICTIONALLY ENGAGE EACH OTHER, SO THAT DURING THE SPINNING OF SAID FASTENING MEMBER WITH RESPECT TO SAID SHEET THE PRESSURE OF SAID SHEET AND FASTENING MEMBER AGAINST EACH OTHER WILL PROGRESSIVELY DISPLACE SAID FASTENING MEMBER INTO SAID SHEET MEMBER; AND TERMINATING THE SPINNING OF SAID FASTENING MEMBER WITH RESPECT TO SAID SHEET MEMBER AFTER SAID FASTENING MEMBER HAS PROGRESSED A GIVEN EXTENT INTO SAID SHEET MEMBER, SO THAT THEREAFTER THE MOLTEN MATERIAL OF SAID MEMBERS WILL SOLIDIFY AND SAID FASTENING MEMBER WILL BECOME FIXEDLY JOINED TO SAID SHEET MEMBER.
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) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |