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US3909342A Expired / Lapsed US ⏱️ 0.0 years remaining

Machine for making contour-core blankets

Assignee: Baltek Inc
•
Filing: 1973-06-14
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Granted: 1975-09-30
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Expires: 1993-06-14
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Abstract

Abstract A machine for making a tessellated contour-core blanket that is conformable to a contoured surface such as the hull of a vessel, for lamination thereto. In the machine, the underside of a web of scrim material is coated with adhesive, the coated web then being pressed against and bonded to the face of a balsa panel. The scrim-faced panel is turned over, and the resultant scrim-based panel is fed through a first slitter station which sections the panel longitudinally into parallel strips. The longitudinallyslitted, scrim-based panel is then fed into a second slitter station which slits the strips transversely into blocks. The slitters at both stations are set to fall slightly short of the scrim and to leave a superficial skin of panel material which serves to maintain the blocks in close proximity to each other and to avoid gaps therebetween.

Inventors

  • 👤 Gerald D Shook

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 14:12
CPC Classifications
B; B32; B32B; B32B21/00; B32B21/10; B63; B63B; B63B5/00; B63B5/02; B32B5/00; B32B5/02; B32B5/022; B32B5/024; B32B7/00; B32B7/04; B32B7/12; E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/24; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0862; B32B2305/00; B32B2305/38; B32B2317/00; B32B2317/16; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1064; Y10T156/1082; Y10T156/12; Y10T156/1317; Y10T156/1343; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1751; Y10T156/1761; Y10T156/1776; Y10T156/1778; Y10T83/00; Y10T83/02; Y10T83/0333; Y10T83/0363; Y10T83/037; Y10T83/647; Y10T83/6476; Y10T83/6489; Y10T83/6491

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 315 words
A MACHINE FOR MAKING A TESSELLATED CONTOUR-CORE BLANKET THAT IS CONFORMABLE TO A CONTOUR SURFACE FOR LAMINATION THERETO BY A BONDING AGENT. A. A COATING STATION B. MEANS SUPPLYING A WEB OF SCRIM MATERIAL TO SAID COATING STATION TO APPLY A COATING OF ADHESIVE TO THE UNDERSIDE OF THE WEB, SAID SCRIM HAVING AN OPEN-MESH RENDERING IT PERMEABLE TO SAID BONDING AGENT, SAID COATING STATION INCLUDING A SPREADER ROLL TO REMOVE WRINKLES FROM THE SCRIM WEB ENTERING SAID STATION, AND PRINTING ROLL ENGAGING THE UNDERSURFACE OF SAID WEB TO APPLY AN ADHESIVE SOLUTION THERETO IN A PREDETERMINED PATTERN C. A COMBINING STATION D. MEANS TO FEED A TRAIN OF BALSA PANELS TO SAID COMBINING STATION AND MEANS INCLUDING AN OVEN TO CONCURRENTLY PASS THE COATED WEB THROUGH SAID OVEN BEFORE IT ENTERS SAID COMBINING STATION TO RENDER THE ADHESIVE LAYER TACKY, AND TO THEN FEED THE COATED WEB INTO SAID COMBINING STATION TO PRESS AND BOND SAID COATED WEB TO THE FACE OF SAID PANELS, E. A SCRIN-CUTTING STATION TO CUT SAID SCRIM WEB TRANSVERSELY BETWEEN SUCESSIVE PANELS IN SAID TRAIN TO PRODUCE A TRAIN OF SCRIM-FACED PANELS, F. A TURNOVER DEVICE OPERATIVELY COUPLED TO THE OUTPUT OF SAID SCRIN-CUTING STATION REVERSING THE POSITION OF SAID SCRIM-FACED PANELS TO PRODUCE A TRAIN OF SCRIM BASED PANELS. G. A FIRST SLITTING MACHINE FOR RECEIVING THE TRAIN OF SCRIMBASED PANELS FROM SAID TURNOVER DEVICE AND FOR SLITTING SAME LONGITUDINALLY TO SECTION THE PANELS INTO PARALLEL STRIPS, AND H. A SECOND SLITTING STATION FOR RECEIVING THE TRAIN OF LONGITUDINALLY SLIT, SCRIM-BASED PANELS FROM THE FIRST SLITTING STATION FOR SLITTING SAME TRANVERSELY TO PRODUCE BLOCKS, THE SLITTERS AT SAID FIRST AND SECOND STATION BEING SET TO FALL SHORT OF SAID SCRIM AND TO HAVE A SUPERFICAL SKIN HOLDING THE BLOCKS TOGETHER TO PREVENT GAPS THEREBETWEEN AND TO PREVENT SAID BONDING AGENT FROM SEEPING INTO THE SPACES BETWEEN SAID BLOCKS.
Claim 2
Dependent Claim 315 words
A MACHINE FOR MAKING A TESSELLATED CONTOUR-CORE BLANKET THAT IS CONFORMABLE TO A CONTOUR SURFACE FOR LAMINATION THERETO BY A BONDING AGENT. A. A COATING STATION B. MEANS SUPPLYING A WEB OF SCRIM MATERIAL TO SAID COATING STATION TO APPLY A COATING OF ADHESIVE TO THE UNDERSIDE OF THE WEB, SAID SCRIM HAVING AN OPEN-MESH RENDERING IT PERMEABLE TO SAID BONDING AGENT, SAID COATING STATION INCLUDING A SPREADER ROLL TO REMOVE WRINKLES FROM THE SCRIM WEB ENTERING SAID STATION, AND PRINTING ROLL ENGAGING THE UNDERSURFACE OF SAID WEB TO APPLY AN ADHESIVE SOLUTION THERETO IN A PREDETERMINED PATTERN C. A COMBINING STATION D. MEANS TO FEED A TRAIN OF BALSA PANELS TO SAID COMBINING STATION AND MEANS INCLUDING AN OVEN TO CONCURRENTLY PASS THE COATED WEB THROUGH SAID OVEN BEFORE IT ENTERS SAID COMBINING STATION TO RENDER THE ADHESIVE LAYER TACKY, AND TO THEN FEED THE COATED WEB INTO SAID COMBINING STATION TO PRESS AND BOND SAID COATED WEB TO THE FACE OF SAID PANELS, E. A SCRIN-CUTTING STATION TO CUT SAID SCRIM WEB TRANSVERSELY BETWEEN SUCESSIVE PANELS IN SAID TRAIN TO PRODUCE A TRAIN OF SCRIM-FACED PANELS, F. A TURNOVER DEVICE OPERATIVELY COUPLED TO THE OUTPUT OF SAID SCRIN-CUTING STATION REVERSING THE POSITION OF SAID SCRIM-FACED PANELS TO PRODUCE A TRAIN OF SCRIM BASED PANELS. G. A FIRST SLITTING MACHINE FOR RECEIVING THE TRAIN OF SCRIMBASED PANELS FROM SAID TURNOVER DEVICE AND FOR SLITTING SAME LONGITUDINALLY TO SECTION THE PANELS INTO PARALLEL STRIPS, AND H. A SECOND SLITTING STATION FOR RECEIVING THE TRAIN OF LONGITUDINALLY SLIT, SCRIM-BASED PANELS FROM THE FIRST SLITTING STATION FOR SLITTING SAME TRANVERSELY TO PRODUCE BLOCKS, THE SLITTERS AT SAID FIRST AND SECOND STATION BEING SET TO FALL SHORT OF SAID SCRIM AND TO HAVE A SUPERFICAL SKIN HOLDING THE BLOCKS TOGETHER TO PREVENT GAPS THEREBETWEEN AND TO PREVENT SAID BONDING AGENT FROM SEEPING INTO THE SPACES BETWEEN SAID BLOCKS.
Claim 3
Dependent Claim 51 words
A machine as set forth in claim 1, wherein said means to supply a web of scrim material to said coating station is constituted by a scrim supply station provided with a roll of scrim material supported for rotation on an axle which is tensioned to prevent overfeed of said roll.
Claim 4
Dependent Claim 52 words
A machine as set forth in claim 1, wherein said scrim-cutting station is constituted by a knife mounted for reciprocal travel on a bridge supported across the entering web on a carriage which moves in the direction of the web and at the same speed in the course of a cutting action.
Claim 5
Dependent Claim 64 words
A machine as set forth in claim 1, wherein said means to feed a train of balsa to said combining station is constituted by a loading station provided with an inclined slide, means to feed panels, on edge, down said slide, and means at the foot of said slide to eject said panels laterally one-by-one onto a conveyor table leading to said combining station.
Claim 6
Dependent Claim 46 words
A machine as set forth in claim 4, wherein said means to eject said panels includes a pusher actuated by a hydraulic cylinder, said pusher engaging the end of the panel at the foot of the slide and pushing the panel laterally out of the slide.
Claim 7
Dependent Claim 39 words
A machine as set forth in claim 5, further including means at the foot of the slide to sense the ejected panel and to produce a signal controlling said hydraulic cylinder to retract the pusher upon completion of ejection.
Claim 8
Dependent Claim 35 words
A machine as set forth in claim 1, wherein said slitting stations are each provided with an array of equi-spaced slitting wheels mounted in a common axle whose height relative to the panel is adjustable.

References Cited (Backward Citations)

US2905579A Cited
US3139371A Cited
US3393109A Cited
US3591443A Cited
US3540967A Cited
US3557840A Cited
US3616112A Cited
US3626795A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-09-29 1979-03-31 1979-09-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-09-29 1983-03-31 1983-09-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-09-29 1987-03-31 1987-09-30 $7700.00 Window Closed / Lapsed

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