3738357 is referenced by 7 patents and cites 12 patents.

A valve arrangement for accurately controlling the bleed rate of a sphygmomanometer. The valve includes a head mounted for movement between closed and open positions, with the open position being established by the setting of a cam element which is contacted by the head when the valve is opened. Contact between the head and the cam permits the air under pressure to escape from the sphygmomanometer either at a uniform rate (if the head-cam contact is maintained continuously) or in discrete controllable quantities (if the head is periodically brought into contact with the cam). The cam position is pre-settable to establish a range of release rates. The valve arrangement also incorporates an improved inverted conical release valve and seat.

Control apparatus for blood pressure testing device
Application Number
Publication Number
Application Date
October 26, 1971
Publication Date
June 12, 1973
Hayes Roger
F16k 51/00
A61b 05/02
F16K 31/524
F16K 31/52
F16K 31/58
F16K 31/44
B27F 01/00
B27F 01/16
A61B 05/235
A61B 05/22
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