Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8118239 | Potable water heater A water heater for heating potable water used in a boat or vehicle. Exhaust heated by the burner of the water heater is discharged from the burner and is conveyed through an exhaust duct which extends through a water jacket surrounding the burner and which water jac... | 02/21/2012 |
| 8113181 | Method and apparatus for capturing and controlling fugitive gases Method to provide fugitive gases to an engine. A source of fugitive gases is directed to the air intake of the engine. A fugitive gas pipe supplies the fugitive gases to the air intake and a vent allows the fugitive gases to vent to atmosphere. A check valve in the ... | 02/14/2012 |
| 8033620 | Toolbox with elevating display backwall A toolbox with drawers for holding tools and the like and a display rack for holding and displaying such tools. The display rack is movable vertically relative to the toolbox and may assume a first tool accessible and tool visible position and a second position wher... | 10/11/2011 |
| 7918189 | Cattle handling system and method of installing same A cattle handling system comprises a plurality of stall dividers positioned side by side and extending generally parallel to each other. Brackets for mounting the stall dividers are connected directly to a concrete slab and allow for connection of the stall dividers... | 04/05/2011 |
| 7861697 | Carbureted natural gas turbo charged engine A control system for a turbo charged natural gas engine. A butterfly valve used for fuel control upstream of a carburetor provides non-linear flow response during opening and closing and a flow compensator compensates for the non-linear response. A throttle valve po... | 01/04/2011 |
| 7766247 | Combination diesel/electric heating appliance systems A diesel/electric appliance for heating coolant within an auxiliary heater circuit and for heating potable water within a potable water circuit. The appliance includes a diesel powered auxiliary heater and a coolant jacket surrounding the burner of the auxiliary hea... | 08/03/2010 |
| 7165607 | Resistive down hole heating tool A heating tool used for heating cement and/or a ground formation zone and melting billets in a down hole application for sealing oil and gas wells from gas migration. The heating tool has a billet loader which allows a plurality of billets to be loaded into the top ... | 01/23/2007 |
| 6926083 | Cement heating tool for oil and gas well completion Apparatus and method for setting cement in the annulus of an oil or gas well during well completion or other similar well operations. An induction heating tool is lowered to a desired position within the well casing and power is supplied to the tool to heat the casi... | 08/09/2005 |
| 6828531 | Oil and gas well alloy squeezing method and apparatus Method and apparatus for melting a material and squeezing the melted material through casing perforations into a fault within the cement or formation of an oil or gas well. A heating tool carries solid material which is melted at depth within the well and adjacent t... | 12/07/2004 |
| 6797797 | Low cross-linking-density gel and process for producing the same A process for producing a low cross-linking-density gel capable of effectively inhibiting light scattering in joining the ends of optical fiber cores with each other. The process is characterized by involving the compounding step for adjusting a flexible silicone ga... | 09/28/2004 |
| 7469659 | Cattle handling system and method of installing same A cattle handling system comprises a plurality of stall dividers positioned side by side and extending generally parallel to each other. Brackets for mounting the stall dividers are connected directly to a concrete slab and allow for connection of the stall dividers... | 12/30/2008 |
| 7449664 | Oil and gas well alloy squeezing method and apparatus Method and apparatus for melting a material and squeezing the melted material through casing perforations into a fault within the cement or formation of an oil or gas well. A heating tool carries solid material which is melted at depth within the well and adjacent t... | 11/11/2008 |
| 7327269 | Flame sensor for a burner A flame sensor circuit is used to sense the presence or absence of a flame in a burner. A first sensor generates a first intensity signal which is proportional to the light intensity of the flame in the burner. A second sensor generates a second signal produced by t... | 02/05/2008 |
| 7326351 | Filter underdrain system for backwash flow and method for measuring same A filter underdrain system and a method for measuring the water flow through the underdrain filter system. The apparatus includes panel members assembled to form a perforate grid on the filter base structure of an underdrain block. The panels are generally rectangul... | 02/05/2008 |
| 7303688 | Oil skimmer and method of operating same A skimmer used to remove both heavy and light oil from a body of water or for the removal of either light or heavy oil and a method of operation of the skimmer. The heavier oil is removed from a first location on a rotating member and the lighter oil is removed from... | 12/04/2007 |
| 7285762 | Sealing method and apparatus for oil and gas wells Apparatus and method for melting material in the annulus of an oil or gas well and thereby sealing the annulus to prevent shallow gas leakage and the like. Conveniently, the material is positioned within the annulus between the production and surface casing of the w... | 10/23/2007 |
| 7241134 | Enhancing combustion with variable composition process gas Method and apparatus for enhancing the combustion of a process gas of variable composition which gas is used for steam generation in producing heavy oil. The mass flow of the process gas containing hydrocarbons, carbon dioxide and water is measured. It is assumed th... | 07/10/2007 |
| 7036746 | Potable water heater and method of using same A hot water heating system for use in a boat or vehicle which utilises the engine of the vehicle or boat, an AC power source or a fuel powered heater to heat a living area and to heat potable water. Each of the power sources can be utilised independently or in combi... | 05/02/2006 |
| 7036593 | Cement heating tool for oil and gas well completion Apparatus and method for setting cement in the annulus of an oil or gas well during well completion or other similar well operations. An induction heating tool is lowered to a desired position within the well casing and power is supplied to the tool to heat the casi... | 05/02/2006 |
| 6960127 | Stereo holding refrigerator A discarded refrigerator is used to hold electronic music playing equipment. The refrigerator has a door which can be opened or closed and is adapted to allow air to enter the interior of the refrigerator under pressure so as to cool the electronic equipment within ... | 11/01/2005 |
| 6942032 | Resistive down hole heating tool A heating tool used for heating cement and/or a ground formation zone and melting billets in a down hole application for sealing oil and gas wells from gas migration. The heating tool has a billet loader which allows a plurality of billets to be loaded into the top ... | 09/13/2005 |
| 6927623 | Amplitude-modulated signal receiving circuit To improve the quality of the demodulated signal without altering the form in which an AM radio wave is transmitted, the received amplitude-modulated signal is converted to a single-sideband signal, and the information signal demodulated from the phase term of this ... | 08/09/2005 |
| 6883467 | Narrowboat auxiliary heater and method of controlling same A hot water system for a narrowboat which system comprises an auxiliary heater used to heat a potable water tank and further is used to heat living areas of the narrowboat. The auxiliary heater and a temperature measuring device are operably connected to the water t... | 04/26/2005 |
| 6797166 | Underdrain apparatus A filter underdrain apparatus and a method for manufacturing such apparatus. The apparatus includes a cover member, a water orifice member and a bottom member, each being individual pieces. The cover is placed over the water orifice member and connected thereto by w... | 09/28/2004 |
| 6767746 | Method and apparatus for analyzing acid gas loading within an amine solution Method and apparatus used to calculate the hydrogen sulfide and carbon dioxide loading of both rich and lean amine solutions used to remove acidic gas components from sour or production gases in order to produce a sweet or sales gas for transmission purposes. The am... | 07/27/2004 |
| 6761531 | Spa pumping method and apparatus A water pump for a spa or the like has a pump water inlet, a pump water outlet and an impeller driving water from said inlet to said outlet. The impeller provides the water axially introduced at the pump water inlet with a radial component which delivers the water t... | 07/13/2004 |
| D488988 | Toilet seat handle | 04/27/2004 |
| 6725464 | Rotary joint for diving suits A rotary joint used for armored diving suits which joint allows rotary motion and which seals the internal portions of the diving suit from the high pressure water in which the user is operating. The rotary joint allows axial movement during operation and reduces pr... | 04/27/2004 |
| 6719121 | Coin collection cart for parking meters A coin collecting cart for collecting coins from parking meters. A plurality of bins are used, each bin being limited to a certain quantity of coins which quantity of coins is electronically sensed. When the first of the bins is full of coins, the coins pass to the ... | 04/13/2004 |
| 6669970 | Method of feeding fish An enhanced fish feed and a method of feeding fish with the enhanced feed are described for particular use in fish farms. The fish feed comprises pellets which are coated with a material intended to contrast highly with conditions within cages of the fish... | 12/30/2003 |
| 6652266 | Flame sensor and method of using same A flame sensor for sensing the presence of a flame in a burner. The signal from the sensor is passed to an amplifier located adjacent to the sensor and amplified without having a sensor signal contaminated with common mode radiation. The selectively ampli... | 11/25/2003 |
| 6561127 | Bait with extended longevity used in trap fishery Bait for attracting crustaceans and non-crustaceans which are caught in trap fishery. The bait includes a pelletized carrier composed of ingredients intended for long life in sea water. The pelletized carrier is mixed with specific attractants depending o... | 05/13/2003 |
| 6555155 | Method and apparatus for harvesting, digestion and dehydrating of krill hydrolysates and co-drying and processing of such hydrolysates Method and apparatus used in producing a feed product or premix and the products made by the method. A predetermined quantity of krill hydrolysate is added to a predetermined quantity of dry carrier with or without a predetermined quantity of liquid marin... | 04/29/2003 |
| 6554209 | Combination hose nozzle and lawn sprinkler A combination hose nozzle and lawn sprinkler which is operable both as a hose nozzle by a user and as a lawn sprinkler when ground mounted. An internal jet and a member define a passageway for water to be directed from the passageway in a first configurat... | 04/29/2003 |
| 6553693 | Snow removal apparatus and method of using same A snowblower apparatus and a method of using the snowblower. The snowblower apparatus is self contained and portable and may be mounted on a prime mover. A turbine engine is located within a housing and discharges its exhaust to the desired area of snow o... | 04/29/2003 |
| 6555144 | Crustacean bait with extended longevity Bait for attracting crustaceans, particularly lobster. The bait includes a pelletized carrier composed of ingredients intended for long life in sea water. The pelletized carrier is mixed with specific crustacean attractants and a fish oil is added to coat... | 04/29/2003 |
