Air damper with adjustable air flow rate

Details Air damper with adjustable air flow rate Air damper with adjustable air flow rate

F - Mech Eng,Light,Heat,Weapons

16

F

F16F 9/02 (2006.01) F16F 1/36 (2006.01) F16F 9/36 (2006.01) F16F 9/50 (2006.01)

Patent

CA 2320591

The air damper includes a housing with cylindrical walls and a piston assembly reciprocating therein. The piston assembly includes an interior surface against which a seal abuts. The interior surface is textured in a grained pattern so that interstices are formed between the seal and the interior surface thereby forming an effective air passageway for damping. A cylindrical spacer spaces the interior surface from a retainer and the seal is engaged around the cylindrical spacer and between the retainer and the interior surface. An alternative embodiment inserts textile material through a damping orifice in order to vary the rate of damping.

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