Floor-mountable retractable roller device
US5590920A · kind A · utility
Inventors
Key dates
| Filing date | Mar 28, 1994 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Mar 28, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/1051
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Environmentally employable in combination with a slidable-door type open-wall and for maintaining an angular-dog type slidable-door in tight opening-obstructed temperature-protective contact adjacently about the wall-opening of a said upright open-wall, a floor-mountable retractable roller device including a floor-mountable horizontal base-plate and including a pivotably mounted elongate rear-arm having a rotatable horizontal-roller springably urged toward the slidable-door underlying angular-dog to temperaturely-protectively urge the slidable-door in closure-condition about the wall-opening. The springably urged force between the slidable-door lower angular-dog and the device horizontal-roller can be empirically adjusted with an adjusting screw disclosed herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.