Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 6935179 | Pressure measuring arrangement The invention relates to a pressure measuring arrangement comprising a pressure measuring cell which is fed by a pressure corresponding to the pressure which is to be measured by a pressure tube filled by a pressurised liquid; at least one pressure recording unit is... | 08/30/2005 |
| 6584855 | Method of sensing pressure outside of a building A method for obtaining the average ambient air pressure outside of a building places a pressure sensor on each major outside wall of the building or around the outer circumference of a one sided (e.g., round) building. The pressure reading from each press... | 07/01/2003 |
| 5982274 | Paperless pressure and alarm recorder A paperless recorder for recording pressure and alarm condition data from a fire controller for a fire pump control system. The fire pump is connected a pipe network which has a pressure sensor for sensing pipe pressure. The recorder is connected to the p... | 11/09/1999 |
| 5367900 | Can tester The present invention includes a can tester having a main body for holding a can, a mechanism for positioning and securing the can, a movable measuring portion and a mechanism for moving the movable measuring portion. The mechanism for moving the slidable... | 11/29/1994 |
| 4739653 | Pressure gauge This invention relates to a sub surface pressure gauge comprising an axially displaceable drum with a chart disposed within a housing and having a selective axial movement, rotatable stylus for recordal of pressures on said chart provided on said drum. A ... | 04/26/1988 |
| 4631960 | Electronic recording manometer The electronic recording manometer is intended particularly for the graphical representation of atmospheric pressure and for use aboard ship. A generator element (1,5,6) supplying pressure-equivalent electric pulses is connected to the input of a micropro... | 12/30/1986 |
| 4331133 | Pressure measurement apparatus A method of determining the pressure applied to a limb by an inflatable garment by placing a flexible pressurizable cuff between the garment and the limb to receive the compressive garment forces and then determining the pressure in the cuff due to those ... | 05/25/1982 |
| 4285237 | Device for accurate subaqueous measurements The invention relates to a device for accurate subaqueous measurements of the vertical displacements of a reference point e.g. the head of a pile by using a pressure difference recorder at the reference point which measures the difference between an air f... | 08/25/1981 |
| 4267585 | Device for determining the configuration and calibrating long, towed underwater structures A device is described for determining the characteristic configuration of long, towed underwater structures such as tubes or cables. The device is a collar which fits around the structure and has sufficient hydrodynamic drag that it remains essentially st... | 05/12/1981 |
| 4222390 | Sphygmomanometer gauge and method of use for blood pressure measurement A sphygmomanometer gauge included a stationary dial having graduations indicative of different blood pressure values. A needle is turnable about an axis over the dial in response to changes in air pressure generated in the sphygmomanometer. A pair of adju... | 09/16/1980 |
| 4120033 | Apparatus and method for determining pumping system head curves There is disclosed apparatus and method for determining pumping head requirements for an operating pumping system by subtracting a desired delivery head or pressure from an actual head. The difference represents overpressure, and this overpressure is subt... | 10/10/1978 |
| 4107995 | Recorder for decompression data In underwater diving a record is made on an electronic recorder of the instantaneous pressure to which the diver is subjected at successive time intervals to give complete time-versus-pressure records for any one diver for a given time period, for example... | 08/22/1978 |
| 4085611 | Recording compression testing meter A recording compression testing meter having a measuring cylinder connected to the spark-plug hole of an engine cylinder by means of a tube and having an indicator arm movable by the piston of the measuring cylinder over a portion of recording paper fed f... | 04/25/1978 |
| 4052892 | Pressure and volume recording apparatus Means for measuring the flow of a stream of fluid and the resistance to said flow. The means can be powered by the fluid whose flow is being measured. First axis motor means moves a chart in response to total flow, and second axis motor means moves marker... | 10/11/1977 |
