Air damper

Details Air damper Air damper

1977-02-18

1978-09-05

Feldbaum, Ronald

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Closure checks

Pneumatic

16 66, E05F 300, E05F 510

Patent

active

041108680

ABSTRACT:
An air damper comprises a cylinder having air ports at its upper and lower portions, a piston rod, a piston movably mounted on one end of the piston rod, a return spring, an air passage provided between upper and lower chambers within the cylinder which passage is opened and closed by the movement of the piston, and an air regulating valve press-fit into the lower air port portion of the cylinder.

REFERENCES:
patent: 1013762 (1912-01-01), Gibbs
patent: 2074008 (1937-03-01), Wolf
patent: 2953811 (1960-09-01), Hall
patent: 3570635 (1971-03-01), Takagi
patent: 3831626 (1974-08-01), Peddinghaus
patent: 3887961 (1975-06-01), Saajos
patent: 4004662 (1977-01-01), Sorgatz et al.

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