Tote box with lid container
US4620644A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 27, 1981 |
| Grant date | Nov 4, 1986 |
| Priority date | — |
| Expiry date | Mar 27, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/15
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The adjacent edges for two covers of a tote box have interlocking fingers where separation is resisted by means of hooks on one or more of the covers engaging side flanges of the box to lock the covers in place. The closed covers present a flat surface inset with respect to a plurality of abutments in the vicinity of the sides and ends that prevent side shifting of a like box stacked on top of it. The side abutments have a second function of latching into the end walls to hold the covers in their open position, even when a plurality of like boxes are nested. The latches and locks are unitarily molded into the cover and provided with cam surfaces that together with inherent resiliency of the structure provide for locking and latching by movement of the cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.