Foundation unit frame
US4074372A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1976 |
| Grant date | Feb 21, 1978 |
| Priority date | — |
| Expiry date | Apr 9, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C23/05
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The invention pertains to a wooden frame structure for a box spring. Two spaced, parallel, upright members form elongated side rails which are initially held together by a base slat extending between the side rails at either end thereof, the base slats being affixed to the bottom of the side rails in recesses therein. Above each base slat, an end slat is installed extending between the side rails, each end slat having a formation such as a tenon formed on either end thereof which engages a corresponding formation such as a mortise formed in each side rail. Normally, at least one center slat, depending on the ultimate frame dimension, lies on its side between the end slats with each end of the center slat lying on a portion of the top of one of the base slats. A plurality of upright cross slats extends between the side rails, and similar to the end slats, each cross slat has a tenon formed in either end thereof which interlockingly engages a corresponding mortise formed in each side rail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.