Snap-closing container
US4200319A · kind A · utility
Inventor
Key dates
| Filing date | Apr 14, 1978 |
| Grant date | Apr 29, 1980 |
| Priority date | — |
| Expiry date | Apr 14, 1998 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H2001/1293
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A container for picking up, enclosing, transporting and disposing materials is provided. Such principal material is pet waste. The container is of tray shape comprising two hinged integral face panels disposed in a coextensive planar position in the open condition and in an angular position in the closed condition. In the open position the two hinged panels form a tray surrounded by side and edge panels. The side panels are interrupted at the hinge by triangular webs with the apex of each web at the intersection of the hinge and the side panel. The container is actuated from its stable open traylike condition through a metastable condition to a stable closed triangular clamshell-like configuration. The transition from the open to closed condition is powered by the energy of the folding webs inverting their relative position with respect to their integral sides. The box is formed of resilient sheet materials such as cardboard, polymeric resins and the like, preferably of a biodegradable nature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.