Damper device

Details Damper device Damper device

2007-10-03

2010-06-15

Bastianelli, John (Department: 3753)

Valves and valve actuation

Lost motion between actuator and valve

C251S129110, C251S228000, C251S229000, C251S298000

Reexamination Certificate

active

07735802

ABSTRACT:
A damper device may include a frame provided with an opening part, a baffle turnably supported on the frame, and a drive unit for turnably driving the baffle to open and close the opening part. The drive unit may include an output member whose tip end side is provided with an engagement part with the baffle and which is linearly advanced and retreated to and from the baffle to turnably drive the baffle. Further, the damper device includes a wall part provided between the driving part and the baffle and formed with an output hole part through which the output member is penetrated. The engagement part is located apart from a first moving extended axis which is formed by movement of the output member penetrating through the output hole part.

REFERENCES:
patent: 2389947 (1945-11-01), Allen
patent: 3119594 (1964-01-01), Heggem
patent: 3334858 (1967-08-01), Hay
patent: 5499658 (1996-03-01), Bridges
patent: 5501427 (1996-03-01), Ando
patent: 5876014 (1999-03-01), Noritake et al.
patent: 6877716 (2005-04-01), Noritake
patent: 2005/0076670 (2005-04-01), Noritake et al.
patent: 2006/0081296 (2006-04-01), Schwartz et al.
patent: 64-48571 (1989-03-01), None

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