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| Number | Title | Issue Date |
| 7229585 | Molded plastic rod with improved break strength An injection molded plastic rod suitable for use in a battery hydrometer. Stress-relieving formations are provided symmetrically arranged on opposite sides of an injection gate of the rod. The formations distribute injection stresses and shield the gate vestige.... | 06/12/2007 |
| 6865942 | Device for estimation of brine density The present invention relates to a novel device that enables a person to gauge the brine density in solar salt works from afar without recourse to sampling of the brine. The device—which can be considered as an improvisation over the conventional laboratory type B... | 03/15/2005 |
| 6776039 | Alcohol content measuring instrument Disclosed herein is an alcohol content and temperature measuring instrument which is simply composed of a mug, an embolism an observation window, and a thermograph and a measuring tub. The measurement of alcohol concentration in a particular liquid can be measured a... | 08/17/2004 |
| 6705153 | Monitoring liquid characteristics including quality control A drilling mud monitoring system includes a single measurement chamber which is filled with a predetermined quantity of drilling mud. The chamber is weighed to provide a value representative of the density of the drilling mud. The time needed for the chamber to drai... | 03/16/2004 |
| 6474143 | Automatically monitoring density and viscosity of a liquid A drilling mud monitoring system includes a single measurement chamber which is filled with a predetermined quantity of drilling mud. The chamber is weighed to provide a value representative of the density of the drilling mud. The time needed for the cham... | 11/05/2002 |
| 6456197 | Oil-in-water detector buoy arrangement A self-righting buoy having an oil/water sensor is provided which includes a radio transmitter or signaling beacon to trail a loading hose or a potential source of leaking oil, such as a FPSO, down current for remote detection of oil sheens.... | 09/24/2002 |
| 6050598 | Apparatus for and method of monitoring the mass quantity and density of a fluid in a closed container, and a vehicular air bag system incorporating such apparatus Apparatus for monitoring the mass quantity and density of a fluid in a closed container of fixed volume. A density sensor within the closed container has a density such that the density sensor moves to a first location within the container when the fluid ... | 04/18/2000 |
| 5811203 | Display device of storage battery A display device of a storage battery for optically displaying a condition of an electrolytic solution stored in a casing of the storage battery comprises a pillar member having a transparent body having one end and other opposite end, the one end of the ... | 09/22/1998 |
| 5631420 | Hydrometer A hydrometer includes a liquid container defining a measuring chamber. A pointer is pivotally mounted inside the measuring chamber and adapted for indicating the specific gravity of a liquid sample contained in the measuring chamber. The liquid container ... | 05/20/1997 |
| 5623251 | Device to verify the identity of a fluid for proper selection of storage vessel Disclosed is a device used to verify the identity of a selected fluid before permitting the selected fluid to be introduced into a storage vessel containing a liquid of known specific gravity. The device includes a container constructed from connecting wa... | 04/22/1997 |
| 4918628 | Stability meter for floating objects A stability meter comprises a translational accelerometer (1) which has a working axis along which it is sensitive to gravity. The meter is mounted on a vessel with the working axis horizontal when the vessel is in the upright position such that it transm... | 04/17/1990 |
| 4644328 | Buoyant alarm device An improved buoyant alarm device which provides an indication of a disturbance to a quiescent level of a body of water. The device includes a cover assembly and a buoyant body. The cover assembly includes a cover member and a support member. The support m... | 02/17/1987 |
| 4186608 | Method and apparatus for verifying declared contents of contents of certain solids An apparatus and method are provided for verification of declared contents in mixed solids, blended textiles, certain pure solids, and other solid substances. The apparatus is assembled from laboratory items and utilizes liquids and instruments. The metho... | 02/05/1980 |
| 4069705 | Analysis of materials There is disclosed a device suitable for obtaining from a fluid mixture of first and second component materials a quantity thereof which contains a fixed weight of said first component material, and an apparatus for determining the proportion by weight of... | 01/24/1978 |
