US3777347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel forming machine
Assignee: Individual
•
Filing: 1972-08-21
•
Granted: 1973-12-11
•
Expires: 1992-08-21
Abstract
Abstract A panel forming machine in which two sheets of material such as sheet metal are fed from supporting arbors through die-forming means, spray means then sprays material into the space between the sheets of material, and dies then hold the sheets in the desired relationship while the material expands and gels.
Inventors
- 👤 R Mccorvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:15
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/20; B29C44/30; B29L; B29L2007/00; B29L2009/00; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53313; Y10T29/53348
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
151 words
Apparatus for continuously forming an insulated panel comprising, first and second arbors for supporting first and second rolls of sheet material respectively, first and second forming die means for forming the crosssectional shape of the first and second rolls of material respectively, said first and second die means arranged such that the formed sheets of material leave the die means traveling in the same general direction and spaced from each other, spray means for spraying expansible gelable material into the space between the two sheets of material after they leave the forming dies, said expansible gelablE material accumulating on at least one of said sheets of material as the sheets move past the spray means; a plurality of holding dies arranged in tandem and receiving the two sheets of material and holding said two sheets of material against movement away from each other while the expansible gelable material expands and gels.
Claim 2
Dependent Claim
151 words
Apparatus for continuously forming an insulated panel comprising, first and second arbors for supporting first and second rolls of sheet material respectively, first and second forming die means for forming the crosssectional shape of the first and second rolls of material respectively, said first and second die means arranged such that the formed sheets of material leave the die means traveling in the same general direction and spaced from each other, spray means for spraying expansible gelable material into the space between the two sheets of material after they leave the forming dies, said expansible gelablE material accumulating on at least one of said sheets of material as the sheets move past the spray means; a plurality of holding dies arranged in tandem and receiving the two sheets of material and holding said two sheets of material against movement away from each other while the expansible gelable material expands and gels.
Claim 3
Dependent Claim
29 words
The apparatus of claim 1 wherein the holding die means which is adjacent the forming die means crimps one or more sides of the two sheets of material together.
Claim 4
Dependent Claim
29 words
Apparatus of claim 1 in combination with a movable cutter means positioned to cut lengths of panel from the continuous sheet after the sheet leaves the holding die means.
Claim 5
Dependent Claim
149 words
Apparatus for continuously forming an insulated panel comprising, first and second arbors, first and second rows of sheet material on said arbors; first and second die means forming the cross-sectional shape of the first and second rows of sheet metal respectively, said first and second die means arranged such that the formed sheets of material leave the die means traveling in the same general direction and spaced from each other, spray means for spraying expansible, gelable plastic material into the space between the two sheets of metal after they leave the forming dies, said plastic material accumulating on at least one of said sheets of metal as the sheets move past the spray means, a plurality of holding die means arranged in tandem receiving the two sheets of metal and holding said two sheets of metal against movement away from each other while the plastic material expands and gels.
Claim 6
Dependent Claim
149 words
Apparatus for continuously forming an insulated panel comprising, first and second arbors, first and second rows of sheet material on said arbors; first and second die means forming the cross-sectional shape of the first and second rows of sheet metal respectively, said first and second die means arranged such that the formed sheets of material leave the die means traveling in the same general direction and spaced from each other, spray means for spraying expansible, gelable plastic material into the space between the two sheets of metal after they leave the forming dies, said plastic material accumulating on at least one of said sheets of metal as the sheets move past the spray means, a plurality of holding die means arranged in tandem receiving the two sheets of metal and holding said two sheets of metal against movement away from each other while the plastic material expands and gels.
Claim 7
Dependent Claim
11 words
The apparatus of claim 4 wherein the plastic material is polyurethane.
References Cited (Backward Citations)
US3399445A
Cited
US3401442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |