Abstract: A pressure gauge 10 has an indicator needle 23 and a scale plate 22. A preset pressure indicating member 31 extending along a pressure scale in a circular arc pattern is slidably attached to a front wall 11 of a case 13, and provided with a first display section 35. An opaque shield portion 36 provided with a second display section 37 at one end thereof is provided to a transparent cover 26 rotatably attached to the front wall. The transparent cover 26 drives the preset pressure indicating member 31 to set a preset pressure range between the first display section 35 and the second display section 37 which is observable from the outside through the transparent cover 26. Therefore, it is easy to change a preset pressure range which is within a measurable range of the pressure gauge.
Abstract: A tool to measure the depth of one or more through-silicon vias, the tool fabricated in silicon to include a microfluidic chamber that is positioned over the one or more through-silicon vias, further including a fluid actuation chamber to inject fluid into the microfluidic chamber and into the one or more through-silicon vias, and a pressure sensing chamber to sense the fluid pressure to indicate when the one or more through-silicon vias are filled with the fluid.
Abstract: A driver load measuring method, device, and program, and a storage medium for storing the program for accurately measuring a load on a driver driving a vehicle accompanied by attitude changes.
Abstract: An apparatus for metering, measuring, or dosing flowing media. A distribution slide valve is disposed in a housing between an inlet and an outlet. A metering piston is disposed in a chamber of the housing and divides the chamber into a first and a second metering chamber. The two end positions of the slide valve alternately connect the metering chambers to the inlet or outlet. Transfer passages are disposed on the periphery of the slide valve for selective connection of connecting passages to the inlet, the outlet, and the metering chambers. A transverse connection of the slide valve connects a central control channel thereof to the inlet via a first one of the transfer passages in either of the end positions of the slide valve. Each end of the latter is associated with a hydraulic control chamber into which the control channel opens. Relief passages connect the control chambers to the outlet.
Abstract: An adding flowmeter comprises a liquid chamber and is divided into two chamber parts by a membrane fixed to a slide which is able to move along a rod. The rod controls a slide valve for the supply and discharge of liquid to and from each of the chamber parts. By means of two abutments against which the slide bears on the rod, the membrane is able to move this rod in order to reverse the supply and discharge connections of the flowmeter so that the membrane carries out a reciprocating movement, filling one of the half-chambers and emptying the other, then vice versa. The number of changes of state of the slide valve are counted to determine the volume of liquid which has circulated in the flowmeter.
Abstract: A constant flow rate liquid medicament administering device which includes a container having a liquid medicament therein. The liquid medicament is fed under pressure to a constant output flow rate regulator that is operated by a drop in pressure between its inlet and outlet. The liquid leaving the regulator under reduced pressure and at a constant flow rate independent of entering pressure is led to a drip chamber in which any gas entrapped in the liquid is released so as to prevent introduction of gas into a patient. The drip rate in the chamber furnishes a rough visual indication of flow rate, the regulator being adjustable to secure any desired rate. Either before or after passage of the liquid through the drip chamber, the liquid is passed through a flow rate indicator which more accurately provides an instantaneous reading of flow rate. Finally, the liquid is led to an administering implement for introducing the liquid into a patient at a constant flow rate.
May 14, 1975
Date of Patent:
August 23, 1977
Nathan Blumberg, Public Systems Research, Inc., Harold J. Metcalf