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US3905856A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for filament winding on a corrugated form to produce a cylindrical corrugated glass fiber part

Assignee: Individual
•
Filing: 1974-03-04
•
Granted: 1975-09-16
•
Expires: 1994-03-04
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Abstract

Abstract The method of filament winding on a corrugated form to thereby form a cylindrical corrugated part includes the steps of CAUSING RELATIVE MOTION BETWEEN SAID FORM AND A GLASS FIBER APPLICATOR, WRAPPING A GLASS FIBER BAND WITH A RESIN COATING THEREON ON SAID FORM IN A SPIRAL PATTERN WITHOUT BRIDGING OVER SAID CORRUGATIONS IN SAID FORM, PERMITTING SAID GLASS FIBER TO HARDEN ON SAID FORM THEREBY FORMING SAID CORRUGATED PART, AND REMOVING SAID HARDENED PART FROM SAID FORM AFTER A PREDETERMINED PERIOD OF TIME. The apparatus has a collapsible corrugated form arranged with its axis of rotation substantially horizontal. An applicator is supported for reciprocating fore and aft movement with respect to preselected surface(s) of the form. Proper orientation of the applicator with respect to the form permits a band of resin coated glass fiber strands to be spirally wrapped on the corrugated form without bridging over the corrugations. Simultaneously, the applicator has the facility for chopping and spraying glass fiber on the form so that same contacts with the resin coat on the fibers. The applicator is moved fore and aft on an endless chain and covers the form after a preselected number of fore and aft movements.

Inventors

  • 👤 Donald L Magee
  • 👤 Walter A Bailey
  • 👤 Roger P Bailey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 12:04
CPC Classifications
B; B65; B65H; B65H81/00; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/583; B29C53/585; B29C53/586; B29C53/80; B29C53/82; B29C53/821; B29C53/824; B29K; B29K2309/00; B29K2309/08

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 127 words
AN APPARATUS FOR FILAMENT WINDING GLASS FIBER ON A CONTINUOUS CORRUGATED FORM, SAID APPARATUS COMPRISING AN APPLICATOR, SAID APPLICATOR BEING CAPABLE OF APPLYING A BAND TO SAID FORM, SAID BAND BEING COMPRISED OF AT LEAST ONE GLASS FIBER STRAND, MEANS FOR CAUSING RELATIVE MOTION BETWEEN SAID FORM AND SAID APPLICATOR, MEANS FOR RECIPROCATINGLY MOVING SAID APPLICATOR THROUGH A PRESCRIBED PATH RELATIVE TO A PRESELECTED SURFACE AREA OF SAID FORM, SAID APPLICATOR THEREBY EFFECTING A SPIRAL WRAP OF SAID STRAND AROUND SAID FORM, SAID APPLICATOR INCLUDING A RECEPTACLE FOR HOLDING LIQUID RESIN AND CATALYST, MEANS FOR CONTINUOUSLY DELIVERING LIQUIFIED RESIN AND CATALYST TO SAID RECEPTACLE DURING THE OPERATION OF SAID APPARATUS, SAID DELIVERING MEANS INCLUDING A CATALYST AND RESIN SPRAY GUN HAVING AN AEROSOL SPRAY EMITTING THEREFROM, AND
Claim 2
Independent Claim 127 words
AN APPARATUS FOR FILAMENT WINDING GLASS FIBER ON A CONTINUOUS CORRUGATED FORM, SAID APPARATUS COMPRISING AN APPLICATOR, SAID APPLICATOR BEING CAPABLE OF APPLYING A BAND TO SAID FORM, SAID BAND BEING COMPRISED OF AT LEAST ONE GLASS FIBER STRAND, MEANS FOR CAUSING RELATIVE MOTION BETWEEN SAID FORM AND SAID APPLICATOR, MEANS FOR RECIPROCATINGLY MOVING SAID APPLICATOR THROUGH A PRESCRIBED PATH RELATIVE TO A PRESELECTED SURFACE AREA OF SAID FORM, SAID APPLICATOR THEREBY EFFECTING A SPIRAL WRAP OF SAID STRAND AROUND SAID FORM, SAID APPLICATOR INCLUDING A RECEPTACLE FOR HOLDING LIQUID RESIN AND CATALYST, MEANS FOR CONTINUOUSLY DELIVERING LIQUIFIED RESIN AND CATALYST TO SAID RECEPTACLE DURING THE OPERATION OF SAID APPARATUS, SAID DELIVERING MEANS INCLUDING A CATALYST AND RESIN SPRAY GUN HAVING AN AEROSOL SPRAY EMITTING THEREFROM, AND
Claim 3
Dependent Claim 47 words
The combination as in claim 1 wherein said liquefying means includes a substantially enclosed structure having an opening in the lower end portion thereof, said enclosed structure necking down from a larger horizontal cross sectional area to a smaller horizontal cross sectional area at the opening thereof.
Claim 4
Dependent Claim 26 words
The combination as in claim 1 wherein said receptacle has a means located interiorally thereof for holding glass fiber strands away from the side walls thereof.
Claim 5
Dependent Claim 37 words
The combination as in claim 3 wherein said receptacle includes a flexible diaphragm operable to substantially enclose the lower portion of said receptacle, and means for varying the pressure with which said diaphragm bears against said receptacle.
Claim 6
Dependent Claim 33 words
The combination as in claim 1 wherein said glass fiber strands are passed through said receptacle, and means for wiping resin and catalyst from said strands as said strands pass through said receptacle.
Claim 7
Dependent Claim 46 words
The combination as in claim 1 including means for rotating said form, said applicator being moved in a substantially horizontal path and at a location relative to said rotating form to lay said band on said form in a spiral wrap without bridging over said corrugations.

References Cited (Backward Citations)

US3025205A Cited
US3392700A Cited
US3480499A Cited
US3673029A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-09-15 1979-03-17 1979-09-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-09-15 1983-03-17 1983-09-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-09-15 1987-03-17 1987-09-16 $7700.00 Window Closed / Lapsed

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