Oven door
US4230532A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 16, 1979 |
| Grant date | Oct 28, 1980 |
| Priority date | — |
| Expiry date | Jul 16, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10B25/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The oven door comprises a latching mechanism having a centrally located spring contained within a spring box to exert a force against said door. A pair of hinge links are pivotably connected to the door hinge shaft and to the spring box. A shaft link is keyed to said shaft and pivotably connected to a latch bar of a yoke type U configuration. A primary toggle link is located on either side of said spring box and pivotably connected on one end to said spring box and door hinge links and on the other end to the latch bar legs, means to limit rotation of primary toggle links and spring box around pivot connections is provided, a latching bracket is affixed to a stationary member for engaging latch bar to secure door to door chamber frame, and actuator means are provided for turning said shaft to open and close the door. In a preferred embodiment a pair of secondary toggle links are located one on either side of spring box, and pivotably connected at one end to latch bar connections which are common to primary toggle links, and at other end they are connected to a stem yoke mounted between said secondary toggle links, said stem yoke having a clearance hole for accepting a stem affixed …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.