Plot handling apparatus
US5459493A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1993 |
| Grant date | Oct 17, 1995 |
| Priority date | — |
| Expiry date | Dec 8, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D15/28
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
This is a pair of improvements for a plot rolling mechanism for a pen plotter or the like having a rolling mechanism with an entry opening and a receiving bin for receiving rolled plots. The first improvement comprises a sealing mechanism for sealing the entry opening during plotting, the sealing mechanism being rotatable between a sealing position blocking the entry opening and a retracted position not blocking the entry opening and apparatus for rotating the sealing mechanism between the sealing position and the retracted position. The second improvement comprises the receiving bin having a horizontal slot opening across the width adjacent a top edge thereof, the slot opening being of a height and width sufficient to pass a largest rolled plot therethrough; and, a flap hinged adjacent the top edge and extending over the slot, the flap having a weight sufficient to maintain it over the slot under normal use and light enough to deflect and open the slot under the weight of the lightest rolled plot expected when a rolled plot entering the receiving bin is rolling off a maximum number of allowed rolled plots already in the receiving bin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.