Sheet handling apparatus
US4826390A · kind A · utility
Inventor
Key dates
| Filing date | Apr 25, 1988 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Apr 25, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S269/904
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus for lifting and supporting wallboard or other sheet material for horizontal or vertical installation on a ceiling or side wall of a structure. A pair of spaced apart identical pivot arms attach at one end to studs, joists or the like available in a building under construction and the other ends are connected together by an elongated bar or rod member. A clip or hanger supports the sheet material when the apparatus is in a vertical position and when translated toward the attachment to vertical studs the arms lock in this horizontal position. The apparatus can be operated in right or left direction of pivot. The apparatus can be easily stored in a small space by removal of the interconnecting rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.