← Back to Patent Explorer
US3052585A Expired / Lapsed US ⏱️ 0.0 years remaining

Methods of making reinforced plastic vessels with integrally formed heads

Assignee: AO Smith Corp
•
Filing: 1959-09-25
•
Granted: 1962-09-04
•
Expires: 1979-09-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Archie C Anderson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 12:40
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/602

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 238 words
IN A METHOD OF FABRICATING A REINFORCED PLASTIC VESSEL WITH AN INTEGRAL HEAD, THE STEPS OF DISPOSING A MANDREL AND A DISC ON A SHAFT WITH AN END OF THE MANDREL BEING SPACED FROM THE ADJACENT END OF THE DISC TO PROVIDE A SLOT THEREBETWEEN, DISPOSING A REINFORCING MEMBER IN THE SLOT IN SPACED RELATION TO BOTH THE ENE OF THE MANDREL AND THE END OF THE DISC, SAID REINFORCING MEMBER EXTENDING RADIALLY OUTWARD BEYOND THE OUTER PERIPHERY OF SAID MANDREL, WINDING A RESIN IMPREGENATED FIBROUS STRAND IN THE SLOT BETWEEN THE REINFORCING MEMBER AND THE END OF THE MANDREL TO FORM A PORTION OF THE HEAD OF THE VESSEL AND CONTINUING THE WINDING UNTIL THE FIBROUS STRAND IS SUBSTANTIALLY FLUSH WITH THE OUTER PERIPHERY OF THE MANDREL, WINDING THE STRAND OVER THE OUTER PERIPHERY OF THE MANDREL TO FORM A FIRST PORTION OF THE WALL OF THE VESSEL EXTENDING THE REINFORCING MEMBER OVER SAID PORTION OF THE WALL OF THE VESSEL, WINDING A SIMILAR RESIN IMPREGNATED FIBROUS STRAND WITHIN THE SLOT BETWEEN THE REINFORCING MEMBER AND THE END OF THE DISC TO FORM A SECOND PORTION OF SAID HEAD AND THEREBY IMBED THE REINFORCING MEMBER WITHIN SAID HEAD, CONTINUING THE WINDING OF SAID LAST NAMED STRAND OVER THE SAID FIRST PORTION OF THE VESSEL WALL TO FORM AN ADDITIONAL PORTION OF SAID WALL AND THEREBY IMBED THE REINFORCING MEMBER WITHIN SAID WALL, AND THEREAFTER CURING THE RESIN.
Claim 2
Dependent Claim 238 words
IN A METHOD OF FABRICATING A REINFORCED PLASTIC VESSEL WITH AN INTEGRAL HEAD, THE STEPS OF DISPOSING A MANDREL AND A DISC ON A SHAFT WITH AN END OF THE MANDREL BEING SPACED FROM THE ADJACENT END OF THE DISC TO PROVIDE A SLOT THEREBETWEEN, DISPOSING A REINFORCING MEMBER IN THE SLOT IN SPACED RELATION TO BOTH THE ENE OF THE MANDREL AND THE END OF THE DISC, SAID REINFORCING MEMBER EXTENDING RADIALLY OUTWARD BEYOND THE OUTER PERIPHERY OF SAID MANDREL, WINDING A RESIN IMPREGENATED FIBROUS STRAND IN THE SLOT BETWEEN THE REINFORCING MEMBER AND THE END OF THE MANDREL TO FORM A PORTION OF THE HEAD OF THE VESSEL AND CONTINUING THE WINDING UNTIL THE FIBROUS STRAND IS SUBSTANTIALLY FLUSH WITH THE OUTER PERIPHERY OF THE MANDREL, WINDING THE STRAND OVER THE OUTER PERIPHERY OF THE MANDREL TO FORM A FIRST PORTION OF THE WALL OF THE VESSEL EXTENDING THE REINFORCING MEMBER OVER SAID PORTION OF THE WALL OF THE VESSEL, WINDING A SIMILAR RESIN IMPREGNATED FIBROUS STRAND WITHIN THE SLOT BETWEEN THE REINFORCING MEMBER AND THE END OF THE DISC TO FORM A SECOND PORTION OF SAID HEAD AND THEREBY IMBED THE REINFORCING MEMBER WITHIN SAID HEAD, CONTINUING THE WINDING OF SAID LAST NAMED STRAND OVER THE SAID FIRST PORTION OF THE VESSEL WALL TO FORM AN ADDITIONAL PORTION OF SAID WALL AND THEREBY IMBED THE REINFORCING MEMBER WITHIN SAID WALL, AND THEREAFTER CURING THE RESIN.

References Cited (Backward Citations)

US2558807A Cited
US2594693A Cited
US2744043A Cited
US2723705A Cited
US2837456A Cited
US2739917A Cited
US2862541A Cited
US2991210A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-09-03 1966-03-05 1966-09-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-09-03 1970-03-05 1970-09-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-09-03 1974-03-05 1974-09-04 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag