Captive nut base adjusting device
US4915334A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 28, 1989 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Jul 28, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47B91/022
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
In an article of furniture, a captive nut base adjustment device is used for height and leveling adjustment. The device comprises a C-shaped retainer for captively holding a nut in contact with a horizontal flange of a base beam attached to the article of furniture. The nut receives a threaded shank of an adjustable foot. The shank extends through aligned holes in the flange and the retainer. The retainer and base beam include a T-shaped plate and an L-shaped slot which cooperate to prevent the nut and retainer from being removed while the nut is in place, and which permit removal of the retainer when the nut is not in place. The furniture can be painted before the nut, retainer and foot are attached, thereby preventing paint from contacting the threads of the nut. After painting, the retainer, nut, and foot are easily attached and adjusted. The retainer and beam are designed with vertical surfaces forming a pocket for receiving the nut and holding it in alignment with holes in the flange and retainer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.