Quotables
"We are probably nearing the limit of all we can know about astronomy."
Simon Newcomb, astronomer ; 1888
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5343753 | Device for detecting a variation in a pressure being monitored by sensing displacement of a ball in a tube A detector tube is supplied with air at an adjustable pressure balanced by at least two adjustable leak flow rates in the conduits 4 and 7 in order to adjust the position of ball in the tube. The possible manual inclination of tube between an extreme vert... | 09/06/1994 |
| 5279161 | Purge gas pressure monitoring system with temperature compensation A temperature compensating device is provided for a purge gas pressure monitoring system in which a piezometer line has an outlet end for submerging in a medium to be monitored and an opposite end for connection to a suitable pressure responsive instrumen... | 01/18/1994 |
| 4794796 | Balancing-vessel transducer with inter-communicating chambers for the conversion of a pneumatic signal, low strength notwithstanding, into a quantifiable output of whatever nature The balancing-vessel transducer disclosed consists of a structure or housing enclosing two intercommunicating chambers part-filled with a liquid, and made freely rotatable about a horizontal axis coinciding substantially with its center of mass. One such ... | 01/03/1989 |
| 4454760 | Pressure sensing system An apparatus for measuring fluid pressures which comprises a gas-type pressure sensor and a sensor control for supplying controlled purge gas to the sensor and for receiving vent gas from the sensor. The apparatus further includes a unique pressure-reduci... | 06/19/1984 |
