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A self contained protective enclosure with an opening for entry and egress and a screen for ventilation and viewing.
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| Number | Title | Issue Date |
| 5499533 | Downhole pressure gauge converter The apparatus disclosed is a type of downhole pressure gauge to be used to measure and record pressure information about oil and gas wells. The apparatus measures fluctuations in pressure by means of a mechanical pressure sensitive device, such as a Bourd... | 03/19/1996 |
| 5070736 | Differential pressure sensor with read-out device A differential pressure sensor comprises a pair of bourdon tubes disposed in an arrangement wherein deflections of the two bourdon tubes resulting from fluid pressures connected thereto take place in two opposite directions and the deflective extremities ... | 12/10/1991 |
| 4638148 | Control system and control device for controlling a heating unit and method of making the same A control system and control device for controlling a heating unit and method of making the control device are provided, the control device having a rod and tube temperature sensing unit for providing linear motion of a part thereof along a substantially ... | 01/20/1987 |
| 3992945 | Bourdon pressure gauge having direct-coupled electronic and visual readout A Bourdon pressure gauge is provided with a direct-coupled electronic and visual readout. Specifically, the electronic and visual readouts are direct-coupled in that they are taken along a common linkage from the Bourdon tube. In addition, they are of com... | 11/23/1976 |
