A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
An improvement in a portable building (B) comprises a ramp door (100) installed in an opening (O) formed in a sidewall (S) of the building. An upper door frame member (106) is hingedly installed to the side of building so to cover the upper end of the ramp door. When the member is in a vertical position, it prevents the ramp door from being lowered; but when the member is rotated to a horizontal position, it unblocks the upper end of the door so the door can be lowered and raised.
An improvement in a portable building (B) comprises a ramp door (100) installed in an opening (O) formed in a sidewall (S) of the building. An upper door frame member (106) is hingedly installed to the side of building so to cover the upper end of the ramp door. When the member is in a vertical position, it prevents the ramp door from being lowered; but when the member is rotated to a horizontal position, it unblocks the upper end of the door so the door can be lowered and raised.
Hinged upper door frame member
MARTENS JOSEPH (author)
2020-09-22
Patent
Electronic Resource
English
IPC:
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
/
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung