DEVICE HAVING SELF-CLOSING FLAPS Russian patent published in 2005 - IPC

Abstract RU 2255193 C1

FIELD: means for closing openings, particularly doors and self-closing and locking means adapted for the doors.

SUBSTANCE: device comprises frame and doors with pivot pins. Outer frame surface is inclined relative vertical line at an angle of 2° -4° due to forming lower frame part with greater thickness in comparison with upper one. Door axes are parallel to inclined outer frame surface. Guaranteed gap is formed between frame sides and the doors.

EFFECT: simplified structure and increased operational reliability.

4 dwg

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RU 2 255 193 C1

Authors

Karevskij V.D.

Krasnov K.V.

Dates

2005-06-27—Published

2003-12-23—Filed