Segmented interlocking tracks produced by injection molds
US5012943A · kind A · utility
Inventor
Key dates
| Filing date | Jun 7, 1990 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | Jun 7, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D11/1873
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A knock-down box produced by injection mold process comprises: a multiplicity of sides and a bottom, a multiplicity of male trapezoidal segments along an edge of the side, an alternating sequence of multiplicity of rectangular tracks and a multiplicity of female trapezoidal segments contiguous and in-line with each other parallel to an edge of the bottom, a dimensioning of the male trapezoidal segments to permit insertion into the rectangular tracks alternately in-line with the female trapezoidal sections, the dimensioning designed to assure a friction slip of the male trapezoid segments along the rectangular track into a captive engagement in female trapezoidal segment assuring a rigid construction of the bottom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.