Two portion frame for supporting doors and the like
AssigneePerbrisu Limited
InventorJohn James Cosgrove
Life of this patent
Estimating the term…
Abstract
A two portion frame for an opening (10) comprises a fixed frame portion (12), which is secured about the opening (10); a removable frame portion (22), which is hinged to the fixed frame portion (12) by hinges (30) and locks (36) by which the removable frame portion (22) is fixable to the fixed portion (12), so that the removable frame portion is removable only from one side of the frame. A door (32) is hinged to the removable frame portion (22) by hinges (34) so that it opens towards the other side. One or more locks are provided to lock the door (32) with the removable frame portion (22) and one or more locks are provided to lock the removable frame portion (22) with the fixed frame portion (12).
Claims15
A two portion frame for an opening, comprising:
- (a) a fixed frame portion which is adapted to be fixedly secured about the opening;
- (b) a removable frame portion which is attached to the fixed frame portion by a first set of hinges;
- (c) a door which is attached to the removable frame portion by a second set of hinges, wherein the removable frame portion has a stepped profile cross section which engages the fixed frame portion when in a closed position, the first set of hinges being at an outer edge of the stepped profile cross section at a side of the fixed frame portion to which the removable frame portion opens so that the removable frame portion is moveable only outwardly from the opening, and the second set of hinges between the door and the removable frame portion being at an inner edge of the stepped profile cross section at a side of the fixed frame portion to which the door opens;
- and
- at least one spring-loaded quick release screw-threaded bolt for securing the removable frame portion to the fixed frame portion, the spring being co-axial with the screw-threaded bolt.
Dependencies are inferred from the claim text.