US3914077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming curvilinear resinous building structures
Assignee: Individual
•
Filing: 1974-05-15
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Granted: 1975-10-21
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Expires: 1994-05-15
Abstract
Abstract An apparatus for the manufacture of building structures has a generally curvilinear shape and employs a rotatable scaffold supported a predetermined distance above the ground. The scaffold supports a carriage on which is mounted an applicator for material such as polyurethane foam or synthetic foam resin. The scaffold also supports a contour or profile smoothing member to smooth the surface of the building after the material has been applied. The material applicator is mounted on the carriage for reciprocal movement generally in a vertical direction as the scaffold rotates. Means are provided for controlling the rotational movement of the scaffold and vertical reciprocal movement of the material applicator on the carriage.
Inventors
- 👤 Ralph R Lodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:22
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/20; E; E04; E04B; E04B1/00; E04B1/16; E04B1/166; E04B1/32; E04G; E04G11/00; E04G11/04; E04G21/00; E04G21/02; E04B2001/3217; E04B2001/3258; E04B2001/3264
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
245 words
An apparatus for forming a curvilinear building structure of foam resin on an internally positioned inflated form member having a desired building configuration, said apparatus including scaffold means, means supporting said scaffold means above the ground adjacent to and externally of said inflated member for rotational movement about a generally vertical axis through said inflated member, said scaffold means having a platform portion shaped to generally conform to a portion of the outer face of the inflated member adjacent the lower portion thereof, said platform portion carrying a foam resin applicator assembly, said assembly comprising an elongated support means, an applicator head reciprocally mounted on said support means, said support means extending upwardly from said platform portion and spaced from but generally following the contour of said inflated member, means for rotating said scaffold means circumferentially around the lower portion of said inflated form member in a generally horizontal plane, means for moving the applicator head reciprocally and vertically along said support means, means for feeding foam resin material to said applicator head, and a contour plate mounted on said scaffold means trailing said applicator assembly in the direction of rotation of said scaffold means, said contour plate being curvilinearly shaped to conform to the desired outline of the building configuration extending vertically along substantially the entire height of said form in close juxtaposition to the inflated member to smooth the foam resin progressively applied thereto in order to provide an even outer surface thereto.
Claim 2
Independent Claim
245 words
An apparatus for forming a curvilinear building structure of foam resin on an internally positioned inflated form member having a desired building configuration, said apparatus including scaffold means, means supporting said scaffold means above the ground adjacent to and externally of said inflated member for rotational movement about a generally vertical axis through said inflated member, said scaffold means having a platform portion shaped to generally conform to a portion of the outer face of the inflated member adjacent the lower portion thereof, said platform portion carrying a foam resin applicator assembly, said assembly comprising an elongated support means, an applicator head reciprocally mounted on said support means, said support means extending upwardly from said platform portion and spaced from but generally following the contour of said inflated member, means for rotating said scaffold means circumferentially around the lower portion of said inflated form member in a generally horizontal plane, means for moving the applicator head reciprocally and vertically along said support means, means for feeding foam resin material to said applicator head, and a contour plate mounted on said scaffold means trailing said applicator assembly in the direction of rotation of said scaffold means, said contour plate being curvilinearly shaped to conform to the desired outline of the building configuration extending vertically along substantially the entire height of said form in close juxtaposition to the inflated member to smooth the foam resin progressively applied thereto in order to provide an even outer surface thereto.
Claim 3
Dependent Claim
19 words
The apparatus of claim 1 wherein means are provided for regulating the speed of rotation of said scaffold means.
Claim 4
Dependent Claim
60 words
The apparatus of claim 1 including a vertical shaft assembly disposed through the vertical center of said inflated member, means supporting said shaft assembly on the ground at one end, and said shaft assembly having its other end projecting above said inflated shape, said support means being rotatably supported at one end on the projecting end of said shaft assembly.
Claim 5
Dependent Claim
42 words
The apparatus of claim 3 and further including conduit means swivelly mounted on the projecting end of said shaft assembly, means connecting said conduit means to applicator head, and means to support said conduit means out of contact with the inflated member.
Claim 6
Dependent Claim
36 words
The apparatus of claim 1 wherein the means for moving the applicator head reciprocally includes a carriagE unit disposed about said support means for reciprocal travel therealong, said applicator head being mounted on said carriage unit.
Claim 7
Dependent Claim
46 words
The apparatus of claim 5, and further including cog means secured along the outer surface of said support means, motor means mounted on said carriage unit and having a shaft extending therefrom, a sprocket wheel secured to said shaft and in engagement with said cog means.
Claim 8
Dependent Claim
13 words
The apparatus of claim 5 wherein said cog means is a sprocket chain.
Claim 9
Dependent Claim
39 words
The apparatus of claim 6, wherein said motor means is a reversible electric motor and further including limit stop means adjacent the extremities of the support means and operable upon contact with the carriage unit to reverse said motor.
Claim 10
Dependent Claim
42 words
The apparatus of claim 6 and further including a channel on the inner surface of said support means and guide roller means on said carriage adapted to engage said channel to guide the carriage unit during its travel along said support means.
Claim 11
Dependent Claim
51 words
The apparatus of claim 1 and further including a foundation on the ground surrounding the inflated form, and wherein said means for rotating said scaffold means comprises a motor mounted on the scaffold means, a drive roller driven by said motor, said roller being movable on a portion of said foundation.
Claim 12
Dependent Claim
30 words
The apparatus of claim 10, wherein said motor is of the variable speed type, and control means on said scaffold means to vary the speed of the scaffold mounted motor.
Claim 13
Dependent Claim
14 words
The apparatus of claim 1, wherein said inflated form member is paraboloidal in shape.
Claim 14
Dependent Claim
14 words
The apparatus of claim 1, wherein said inflated form member is hemispherical in shape.
Claim 15
Dependent Claim
14 words
The apparatus of claim 1, wherein said inflated form member is ellipsoidal in shape.
Claim 16
Dependent Claim
31 words
The apparatus of claim 6, and further including control means on said scaffold means to vary the speed of said carriage-mounted motor to regulate the reciprocatory movement of the carriage unit.
Claim 17
Dependent Claim
29 words
The apparatus of claim 1 and further including a second elongated support means extending upwardly from said platform portion, said contour plate being mounted on said second support means.
Claim 18
Dependent Claim
14 words
The apparatus of claim 1, and further including means to heat said contour plate.
Claim 19
Dependent Claim
27 words
The apparatus of claim 17, wherein said means to heat said contour plate comprises an electrical heating element reciprocable along the outer surface of said contour plate.
Claim 20
Dependent Claim
39 words
The apparatus of claim 18 and further including second motor means mounted on said scaffold means, and means interconnecting said second motor means and said heating element whereby said heating element will be moved reciprocably along the contour plate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |