Recorders – Combined with external recorder operating means – Well logging
Patent
1974-08-08
1976-07-13
Howell, Kyle L.
Recorders
Combined with external recorder operating means
Well logging
128 205G, 128 205M, 128 205Q, G01D 506, A61B 502
Patent
active
039697347
ABSTRACT:
An apparatus for recording pneumatic pressures such as those encountered when measuring blood pressure with a sphygmomanometer. A sheet material which is to have information recorded thereon is carried by a suitable support. A frame carries a marking instrument for marking the information on the sheet material, and in addition this frame carries a pressure-responsive device capable of responding to a change in pneumatic pressure and connected with the marking instrument for moving the latter in accordance with the degree of pneumatic pressure. A suitable structure is provided for moving the frame together with the marking instrument and the pneumatic pressure-responsive structure connected thereto from a non-marking position where the instrument is spaced from the sheet material to a marking position where the instrument engages the sheet material to record information thereon, and the structure which moves the frame to the marking position thereof brings about this operation in response to a change in the pressure which is received by the pressure-responsive structure.
REFERENCES:
patent: 3623478 (1971-11-01), Saba
patent: 3754545 (1973-08-01), Weinstein
patent: 3771515 (1973-11-01), Hurwitz
patent: 3795007 (1974-02-01), Mohrman et al.
patent: 3838291 (1974-09-01), Marion et al.
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