All weather mechanically reciprocatable roll top cover apparatus
US5549347A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Jun 5, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60J7/085
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention is directed toward an all weather, mechanically reciprocatable, roll top cover apparatus for conveniently and reliably covering and uncovering the open top side of receptacles and the like. The apparatus consists of a support structure mounted at the open top side of the receptacle for supporting a flexible cover and of two primary operating drive devices. The cover is divided into two sloping panels by the support structure to facilitate precipitation removal and to maximize volumetric capacity of the receptacle. The operating drive devices include an uncovering drive device for removing the cover and a covering drive device for replacing the cover. In particular, the cover has one edge fixed at one side wall of the receptacle, while the opposing edge is free to travel between the opposing side walls. The uncovering drive device includes a shaft mounted to the cover centrally. To remove the cover, the shaft is rotated toward the cover's fixed edge to wind the cover on the shaft. A plurality of stops, located at the fixed edge's attachment to the side wall, prevent the shaft, with the cover wound thereon, from rotating beyond the side wall. The covering drive …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.