Bulkhead door
US4049311A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1976 |
| Grant date | Sep 20, 1977 |
| Priority date | — |
| Expiry date | Jan 19, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D33/042
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bulkhead door assembly mountable within a storage compartment, such as a refrigerated trailer, for dividing the compartment into subcompartments. Tracks are mounted on the opposed sidewalls of the compartment adjacent the upper edges thereof, and a pair of support devices are mounted on the upper corners of the bulkhead door and coact with the tracks. The support devices permit the upper edge of the bulkhead door to be fixedly latched relative to the sidewalls when the bulkhead door is in a lowered position for dividing the compartment. The support devices also hingedly support the bulkhead door to permit it to be swung upwardly about a horizontal axis located adjacent the upper edge thereof for storage in a raised position adjacent the ceiling of the compartment. A pair of releasable lock mechanisms are mounted adjacent the lower edges of the door for securing the door in either the lowered or raised position. A first actuator is associated with the lock mechanisms for permitting simultaneous manual release thereof when swinging of the door between the raised and lowered positions is desired. A second actuator is associated with the support devices to permit latches associated t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.