Bizarre Patents
A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.
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 |
| 7497185 | Audible fill level alarms for liquid storage vessels An audible fill level alarm is provided. The alarm includes a whistle body having a lower whistle hole, a whistle-tube depending from said whistle body, and a whistle disk having an upper whistle hole. The whistle disk and the whistle body define a whistle chamber t... | 03/03/2009 |
| 7403839 | Water shut-off system A moisture monitoring and control system comprising: 1) a plurality of moisture sensors; 2) one or more local or remote control stations capable of monitoring and controlling each of the individual elements of the moisture monitoring and control system; 3) at least ... | 07/22/2008 |
| 7364610 | Air filter sensor The present invention is directed towards a sensor including, inter alia, a body having first and second spaced-apart apertures, the first aperture having a shape producing an audible noise upon a fluid passing therethrough; a piston positioned within the body; and ... | 04/29/2008 |
| 7129832 | High/low level alarm controller A high/low level alarm controller having ability to interface with level sensing equipment and instrumentation in a manner that isolates the controller from downstream components is presented. The controller accepts power, logic and transduced level inputs; output f... | 10/31/2006 |
| 7079037 | System and method for indicating liquid level condition An indicator for displaying either low liquid level or satisfactory liquid level conditions within a tank includes a sensor for detecting the liquid level conditions, a photodetector for detecting an ambient dark condition, a pair of indicator lights for indicating ... | 07/18/2006 |
| 7044077 | Mechanical warning device The mechanical signaling device is used for indicating when contaminates are present in water in a manhole so that the contaminated can be cleaned out of the manhole before the contaminates are released into the environment. The mechanical signaling device has a fla... | 05/16/2006 |
| 6805070 | Fluid container with level indicator, and fluid level indicator assembly for a fluid container A fluid storage container provides a visual display of a fluid level therein. The container has a plurality of capillary tubes attached thereto, correlating to predetermined fluid levels within the container, and which may be visually observed upon inspection of the... | 10/19/2004 |
| 6725800 | Accumulating whistling vent An accumulating whistling vent for indicating a level of liquid in a tank having a vent line is disclosed. The whistling vent includes a whistle housing reservoir which has mounting tubes extending from either ends. A whisle is housed in the whistle housing reservoi... | 04/27/2004 |
| 6688329 | Water feeder controller for boiler A water feeder controller for a boiler monitors a low water cutoff sensor in a boiler and uses a feed timer to feed water to the boiler for a predetermined feed period of time. The feed timer brings the water level in the boiler well above the low water c... | 02/10/2004 |
| 6672244 | Fuel level indicator system A fuel level indicator system includes a housing member that is couplable to a fuel tank. The housing member is positionable adjacent to a vent opening in the fuel tank. The housing member defines an interior space. The housing member has a lower aperture... | 01/06/2004 |
| 6551558 | Method and device for liquid transfer with an analysis apparatus The invention concerns a liquid transfer device for an analysis apparatus with a liquid transfer cannula (5) and a capacitive liquid level detector to detect the immersion of the liquid transfer cannula (5) in an analysis liquid contained in a vessel. To ... | 04/22/2003 |
| 6488826 | Fluid electrode system for resistive slope sensors An electrode electrolyte system is provided that is capable of operating in slope sensors in a wide range of temperatures. The eletrolytic system is characterized by a stable conductivity at high temperature and by low toxicity. The slope sensor can be in... | 12/03/2002 |
| 6236323 | Visual fluid level indicator using magnetic pins A fluid level indicator (22) indicating the level of a fluid (14) in a chamber (12) having a piston (16) is disclosed. The fluid level indicator (12) has a housing (24) that is positioned adjacent to the chamber (12). A plurality of magnetic pins (28, 38)... | 05/22/2001 |
| 6217752 | Septic tank alarm system A two stage alarm system for detecting rising levels of sludge in septic tanks, and similar sedimentary tanks. The system, to detect a first or "caution" level, and a second or "critical" level of sludge, relies upon a pair of vertically positioned weight... | 04/17/2001 |
| 6000359 | Storage vessel overfill alarm A housing and float assembly allow for vapors or gases displaced during filling storage vessels to be redirected from a normal vent through a vapor or gas activated whistle or alarm without significantly restricting the venting rate of the vessel. The ala... | 12/14/1999 |
| 5832968 | Fuel overfill warning device A fuel overfill warning device including a vent tube. A whistle alarm is positioned within the vent tube. A pair of flexible hoses engage opposing end portions of the vent tube. The whistle alarm will emit an audible signal as air is forced out of the ven... | 11/10/1998 |
| 5555905 | Cassette type gas cylinder with remaining volume alarm unit and manufacturing method thereof A cassette type gas cylinder, containing liquefied fuel gas, for giving an alarm when the volume of remaining fuel is reduced to a predetermined level or less in order to provide an advanced notice of replacement of the gas cylinder with a simple structur... | 09/17/1996 |
| 5553780 | Spraying system with low liquid level warning A spraying system for providing a pressurized liquid spray for cleaning purposes is mounted on a vehicle for use outdoors. The system includes a liquid storage tank, a spray device for directing a spray of liquid therefrom, and a liquid supply system for ... | 09/10/1996 |
| 5293896 | Arrangement for measuring the level of liquified gases A semiconductor sensor detects the existence of liquified gases by immersion or approaching the liquid. A high signal amplitude of the sensor permits a simple signal evaluation of high reliability. The sensor permits the realization of filling level measu... | 03/15/1994 |
| 5289846 | Automatic liquid replenishing system An automatic water replenishing system is designed for use with multiple dye vats used for tinting eyeglass lenses, but the broad principles of the invention could apply to other systems used for replenishing individual ones of plural vats or reservoirs w... | 03/01/1994 |
| 5275216 | Liquid overflow shut-off valve An add-on liquid overflow shut-off valve for a tank. The device is used to ensure that a holding tank is not overfilled and provides a fail safe way to prevent spillage when pumping into a holding tank. The device provides a warning indicator when the hol... | 01/04/1994 |
| 5112319 | Infusion alarm system An infusion alarm system comprised of a housing, an upper cover attached to the housing at the top, a control circuit set in said upper cover, a battery box set inside the housing and an inner shell set between the housing and the battery box, a tension s... | 05/12/1992 |
| 5023608 | Fuel filler alarm for boats A fuel filler alarm for boats includes a housing, a whistle element on the housing and a suction ring on the housing. The suction ring is operable for detachably securing the housing to the hull of a boat adjacent a fuel tank vent thereon so that air pass... | 06/11/1991 |
| 4997013 | Liquid fill level indicator An apparatus and a method for filling vessels with liquid has a non-electric fill indicator having an air passageway leading up and out of the vessel to an air flow indicator, air escaping during filling causes the indicator to whistle and when the whistl... | 03/05/1991 |
| 4982655 | Saucepan capable of setting amount of soup finally left therein A saucepan capable of setting amount of soup finally left therein, including a body having a nozzle portion communicated with inner portion thereof, and a cap provided with pressure-relieving hole and pressure valve, wherein a conduit provided with scale ... | 01/08/1991 |
| 4977850 | Signal apparatus A signal apparatus comprising a post-mountable arm adapted at one end to be mounted on a vertical stand post and having provided at the other end thereof a bell adapted to be struck by a counter-weight mounted on one end of a balance beam when blood reach... | 12/18/1990 |
| 4976297 | Funnel having improved liquid fill level indicator An apparatus and a method for filling vessels with liquid has a non-electric fill indicator having an air passageway leading up and out of the vessel to an air flow indicator, air escaping during filling causes the indicator to whistle and when the whistl... | 12/11/1990 |
| 4856564 | Indicator assembly An indicator assembly generates a sound when a liquid is flowing through a fill conduit for a storage tank. The assembly has a body with a first connection device for connection with the fill conduit, and has a second connection device for connection to t... | 08/15/1989 |
| 4827246 | Hydrocarbon and water level sensor system used to monitor underground storage sites Combination hydrocarbon and water level sensor systems for use in connection with underground storage sites, such as gasoline storage tanks, industrial waste sites, and the like, with a solar cell power source and an LCD display located above ground and p... | 05/02/1989 |
| 4753266 | Valve assembly A valve assembly is provided for controlling the flow of liquid accumulated in a closed vessel through a drain port in the bottom wall of the vessel. The assembly includes a body member having a first section disposed within the drain port. The body membe... | 06/28/1988 |
| 4610202 | Ink reservoir An ink jet recorder comprises a first tank as an ink supply source, a second tank as an ink supply source for the first tank, and three switching means and a pump arranged in an ink supply path. By controlling open/close states of the switching means and ... | 09/09/1986 |
| 4502041 | Structure failure detector with signal transmission through the structure itself An offshore drilling tower has at least one upright hollow member extending from below the water to support an above-water platform. A detector in or on the hollow member, usually below the water, responds to a water leak into the hollow member. The detec... | 02/26/1985 |
| 4500761 | Fluid reservoir with fluid-level sensor A fluid reservoir with a fluid-level sensor includes a manual testing device consisting of two separate but cooperative rods. The fluid-level sensor consists of a float within the reservoir and a reed switch which is closed to cause a low fluid-level alar... | 02/19/1985 |
| 4440193 | Valve assembly A valve assembly is provided for controlled draining of a liquid accumulated in a closed vessel. The assembly includes a body member mounted on the vessel and a valve piece adjustably mounted on the body member for movement between open and closed positio... | 04/03/1984 |
| 4341178 | Method of and apparatus for detecting leakage into the bilge of a sea vessel In a sea vessel having a bilge pump energized in response to bilge water level, an operating parameter of the bilge pump, such as on-time or water output, is monitored and compared with a normal or expected reference value of the parameter to indirectly d... | 07/27/1982 |
| 4277773 | Liquid level sensor An apparatus for cooperation with an existing opening within a cooling radiator of a vehicle for determining the liquid level in the radiator. The radiator, which may be an automobile or truck radiator, is connected to an electrical power source of the ve... | 07/07/1981 |
| 4212005 | Movement detector The invention relates to a movement detector, more particularly a sensor comprising a container partially filled with a liquid into which three electrodes extend. An input alternating signal is applied to two of the electrodes and an output signal amplitu... | 07/08/1980 |
| 4176694 | Automatic shutoff liquid dispensing valve A dispensing valve for controlling the flow of a liquid from a container into a receptacle is described. Such valve is designed to terminate liquid flow automatically when the liquid level within the receptacle reaches a predetermined height. It includes ... | 12/04/1979 |
| 4003260 | Apparatus for testing molten metal A measuring or sampling probe is to be lowered to a desired depth in a molten metal. The probe is mounted on a probe carrier which can be lowered and raised. A contact detector, which emits a control signal when the detector comes into contact with the up... | 01/18/1977 |
| 3995251 | Boat launching alert device A pivotally mounted float that moves when a trailer contacts water causing the closing of a pair of electrical contacts causing a horn to sound when a car is being driven in reverse.... | 11/30/1976 |
