Method for coating a rectangular cupboard door or the like with semi-rigid plastic sheeting
US4251307A · kind A · utility
Inventor
Key dates
| Filing date | Aug 23, 1979 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Aug 23, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1034
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A clamping force of given strength is directed at right angles to a rectangular piece of plastic sheeting whose width and length are somewhat greater than that of a cupboard door with the piece of plastic sandwiched between the door and an evenly heated supporting plate which is maintained at constant temperature of at least 50.degree. C., and the projecting marginal edges of the plastic sheeting are stretched and subsequently pressed against the surface portion on the rear side of the cupboard door preheated with contact glue. The applied clamping force must be sufficient to prevent the portion of sheeting from being pulled out from between the plate and the cupboard door front while permitting that sheet portion to be stretched and extended along with the marginal portion through which the stretch force is exerted, but the force may not be so excessive that the stretching or extension of that sheet portion is prohibitive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.