Patent · US Expired

Air outlet device

US4840114A · kind A · utility

7Cited by
5References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 13, 1988
Grant dateJun 20, 1989
Priority date
Expiry dateApr 13, 2008

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF24F13/1406
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

An air outlet device is to grant in its closing position a tight closing e from whistling noises. This is to be achieved by simple means and despite component tolerances. For this purpose longitudinal gaps formed between a closure flap and seat edges before the closing process narrow towards that end of the closure flap which is remote from the actuating part. During the closing movement the closure flap is distorted elastically so that the longitudinal gaps close at first in the sections remote from the actuating part.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.