Stationary pivot mechanism for use with a damper

Details Stationary pivot mechanism for use with a damper Stationary pivot mechanism for use with a damper

1986-06-16

1989-08-22

Brown, Peter R.

Brakes

Internal-resistance motion retarder

Controlled by an operator remote from retarder

74104, 188319, 251 56, 251228, F16K 3112

Patent

active

048587354

ABSTRACT:
An improved pivot assembly operable on an air flow controlling disk, initially to move the disk from a closed position over a damper opening to an intermediate open position away from the opening and subsequently to pivot the disk to a fully open position normal to the opening. The assembly includes stationary support plates and carriage plates carrying the disk. The carriage plates are coupled to the support plates by a system including one axle member received in a bore in the carriage plates for movement with the carriage plates dictated by contact of the axle member with camming slots in the support plates. A piston rod to move the carriage plates relative to the support plates is coupled to the axle member.

REFERENCES:
patent: 382101 (1888-05-01), McKnight
patent: 3570835 (1971-03-01), McPherson
patent: 3737142 (1973-06-01), Boswell et al.
patent: 4605198 (1986-08-01), Greiner

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