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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7220058 | Bearing unit for the hub of a vehicle wheel equipped with a tire inflating system A bearing unit comprises a radially outer stationary race (1) and a pair of radially inner rotatable half-races (2a, 2b). An intermediate annular chamber (8) is defined between the outer race (1) and the inner half-ra... | 05/22/2007 |
| 7188601 | Oil pump for engine using gerotors having fully filtered oil flow The oil pump has a cam support plate attached to the engine block. The support plate has a pressure relief valve. An oil pump body assembly has a pair of gerotors on each side. The gerotors are attached to and driven by a shaft attached to the rear cam. ... | 03/13/2007 |
| 7178634 | Device for supplying lubricant to several lubrication points on machine parts A device for supplying several lubrication points on machine parts with a lubricant, comprising an electromechanical lubrication dispenser and a distribution device coupled to a lubricant outlet of the dispenser. The distribution device has a housing, a cylindrical ... | 02/20/2007 |
| 7174998 | Submerged electric fluid pump An electric fluid pump for a transmission, transfer case or an oil reservoir. The pump is contained within the transmission, transfer case or engine oil reservoir and has an open housing which allows fluid into the motor for cooling and lubrication. ... | 02/13/2007 |
| 7004131 | Engine shaft pump A rotary shaft pump for increasing supplied oil pressure to a pressure responsive device in an internal combustion engine. The pump includes a housing adapted to carry a plurality of axially spaced journals of a rotatable shaft. The shaft also includes at least one ... | 02/28/2006 |
| 6988590 | Oil delivery system A modular oil delivery system has a mount with at least one passage, a flange and a body depending from the flange. A mounting bracket is carried by the mount to support an oil pump having an oil outlet in fluid communication with at least one passage in the mount. ... | 01/24/2006 |
| 6779965 | Integrated axial flow pump An apparatus is given for feeding a lubricating and cooling material to a pump or other device having a rotating member that operates intermittently. In particular it deals with methods for delivering lubricant to the pump whenever, and only whenever, the pump is ru... | 08/24/2004 |
| 6763797 | Engine oil system with variable displacement pump A lubrication system for an internal combustion engine includes a variable displacement oil pump supported on the engine block and connected to draw oil from the oil pan and to supply pressurized oil to various engine components. The pump defines variable displaceme... | 07/20/2004 |
| 6761544 | Lubrication system for downhole application A component, such as a submersible motor, having a lubrication distribution system. The component includes an outer housing having a rotatable shaft disposed within the housing. The shaft is supported by one or more bearings and a lubricant is disposed within the ho... | 07/13/2004 |
| 6494806 | Lubricating oil supply system for infinitely variable transmission A lubricating oil supply system for an infinitely variable transmission wherein the infinitely variable transmission has a transmission shaft provided with a lubricating oil path and is rotatably mounted through the wall section of a casing. The infinitel... | 12/17/2002 |
| 6478116 | Lubricating oil supplying arrangement for an apparatus having a rotating apparatus shaft A lubricating oil supplying arrangement for an apparatus having a rotating apparatus shaft with an oil pump is arranged at one end of the apparatus shaft (23) and is driven by this apparatus shaft (23). A pump housing (2) has a pocket (3) in the form of a... | 11/12/2002 |
| 6422346 | Lubricating oil pumping system In a gas compressor having a crankcase rotatably supporting a drive shaft connected to and adapted for operating compression generating structure of the compressor, the shaft being connected to an electrical motor for being driven thereby in either rotati... | 07/23/2002 |
| 6364059 | Lubricating system, preferably for refrigerating machinery and comprising a pitot tube pump A lubricating system, preferably for smaller refrigerating machinery of piston compressor type (1, 2, 3) having a substantially vertically extending drive shaft (4). A disc-shaped member (11) is arranged adjacent to the lower part of the drive shaft (4) t... | 04/02/2002 |
| 6024193 | Lubricating system for engine powering offroad vehicle A lubricating system for an engine having a cylinder body and a crankcase, the cylinder body defining at least one cylinder, a piston movably mounted in the cylinder and connected to a crankshaft rotatably mounted in the crankcase defined by a crankcase m... | 02/15/2000 |
| 5878841 | Joint device for a lubrication system and a pump apparatus including the joint device A pump apparatus for a milking machine is provided with an oil container for the supply of lubricant to the pump. A joint device is inserted in the container. The joint device comprises a casing enclosing an inlet conduit for bringing back oil to the cont... | 03/09/1999 |
| 5875871 | Device for distribution of lubricant and a pump apparatus including the distribution device A pump apparatus for a milking machine is provided with a distribution device for the supply of lubricant to the bearings of the pump. The distribution device comprises an inlet for the supply of lubricant from a container, a distributor and at least two ... | 03/02/1999 |
| 5836421 | Lubricating system for internal combustion engines A lubricating system for an internal combustion engine maintains lubrication even in extreme emergency positions of the engine such as slants within the range of about 90° to about 270°, relative to the horizontal and even for upside down engine positio... | 11/17/1998 |
| 5810571 | High performance oil pump An oil pump for high performance internal combustion engines suitable for use with race cars and the like wherein extended wear and tolerance maintenance is achieved by supporting the pump gears on shafts extending through the gears. Balanced dual support... | 09/22/1998 |
| 5779005 | Constant flow cascade lubrication system A system for lubricating bearings on a vertical rotatable shaft within a bearing housing, is comprised of an annular lower lubricant sump at a lower portion of the bearing housing; an annular upper lubricant reservoir at an upper portion of the bearing ho... | 07/14/1998 |
| 5772573 | Decanter centrifuge and gear box with harmonic drive and associated operating method A decanter centrifuge assembly comprises a bowl, a screw conveyor disposed inside the bowl for rotation at a speed different from an angular velocity of the bowl, and a harmonic drive unit including a circular spline drivingly connected to the conveyor. T... | 06/30/1998 |
| 5735676 | Method and device for the autolubrication of the rolling bearings of turbomachines A method and device for the autolubrication of the rolling bearings of turbomachines. The method and device utilize pressure differences present in the turbomachine for sucking in the lubricating oil. Moreover, a pressure is built up in centrifuges arrang... | 04/07/1998 |
| 5732794 | Auger-driven automatic lubricator An automatic lubricator is microprocessor controlled and can be programmed to deliver lubricant to a bearing or the like at selected intervals. A pressure for lubricant delivery in the range of 80-90 psi can be attained in less than a minute, but the bulk... | 03/31/1998 |
| 5730250 | Gear type grease pump A gear type grease pump includes a motor fixed on the top surface of a base plate, a gear type pump fixed on the bottom surface of the base plate, the pump having a pair of gears engaged with each other and rotationally driven by the motor for rotating, a... | 03/24/1998 |
| 5558058 | Four stroke engine with combined oil pump and filter assembly Disclosed herein is an oil pump assembly comprising a housing member including a first mounting surface, a cover member mounting surface spaced from the first mounting surface, a bore extending from the cover member mounting surface and including, adjacen... | 09/24/1996 |
| 5558180 | Bearing lubricating apparatus for rotary machine A bearing lubricating apparatus for a rotary machine has a rotary shaft rotatably supported by a rolling bearing, and an oil receiving portion which receives lubricating oil picked up by a pick-up member. The oil in the oil receiving portion is sucked by ... | 09/24/1996 |
| 5449051 | Pneumatic oil lubricator A pneumatic oil lubricator for lubricating replenishment mainly has a pneumatic oil pump for pumping oil from a oil reservoir to an oil outlet unit, such as an oil gun. An automatic controlling apparatus is provided which has a hollow unit sleeve, a pisto... | 09/12/1995 |
| 5332064 | Control apparatus for lubrication pump A control apparatus for a lubrication pump to supply lubrication oil to a plurality of working machines includes a tank stored with lubrication oil therein, a cover being covered on the tank having a control panel allowing a user to preset intermittent cy... | 07/26/1994 |
| 5318153 | Oil pump An oil pump comprises a housing, a cover, an inner gear having external teeth and a recess, and an outer gear having internal teeth engaged with the external teeth of the inner gear. The housing or the cover includes an engagement protrusion to be engaged... | 06/07/1994 |
| 5222576 | Central-lubrication assembly In a central-lubrication assembly with a gear pump (3) and with an electric motor (6) connected to the latter via a connecting piece (4), the connecting piece (4) is not only designed as a valve block for a combined pressure-relief and pressure-limiting v... | 06/29/1993 |
| 5215165 | Oil pump A rotor-type oil pump for supplying lubricating oil to an automotive internal combustion engine. The oil pump is comprised of inner and outer rotors which are rotatably disposed inside a pump casing. The inner rotor is formed with an external gear partly ... | 06/01/1993 |
| 5215164 | Lubricating device for four stroke outboard motor A number of embodiments of outboard motors including dry sump lubricated four cycle internal combustion engines. The dry sump lubrication system includes a scavenge pump for drawing lubricant drained from the engine lubricating system through an inlet por... | 06/01/1993 |
| 5150769 | Controlled-flow lubricating system The novel controlled-flow lubricating system utilizes a casing that forms, in use, an enclosed oil well. At least one bearing is disposed inside the well. A shaft is journaled in the bearing. A pumping member is pressed onto the shaft adjacent to the bear... | 09/29/1992 |
| 5099932 | Rock drill bit lubricant circulating system The present invention provides a lubricant circulation system for a rock drill bit which circulates a flow of lubricant over the bit bearing surfaces to keep the bearings optimally lubricated and free to particulate contaminants from the drilling process.... | 03/31/1992 |
| 5035448 | Swivel or rotating joint A swivel joint for interconnecting two lengths of pipe, comprises an inner annular member adapted, in use, to be connected to a first length of pipe and an outer annular member co-axial with the inner annular member and adapted, in use, to be connected to... | 07/30/1991 |
| 4974562 | Oil pump device of an engine A lubricating oil pump device of an engine comprises an upper and a lower pump case and a rotary pumping mechanism of the internal-gear, one-tooth difference type housed within a housing formed between the upper and lower pump cases. Both the pump cases h... | 12/04/1990 |
| 4946433 | Centrifuge drive The drive of a centrifuge utilized in biology, biophysics and medicine includes a casing accommodating a stator and a rotor whose shaft is installed in an angular bearing and rigidly connected with a flexible shaft fixed rotatably in a dumping device. The... | 08/07/1990 |
| 4942944 | Screw pump for lubricating generator bearing Apparatus to lubricate generator bearings with an oil-air mist is disclosed. A screw pump, preferably an assembly of components comprising a ring, a teflon seal, a pump rotor and a hub is secured onto a rotor shaft of a generator for rotation therewith. T... | 07/24/1990 |
| 4901819 | Lubrication device for vertical crank shaft engine A lubrication device for a vertical crank shaft engine. A portion of a crank case, which houses the crankshaft with a small clearance at a given range of the lower side of the crankshaft extending vertically and expands upwards of the housing portion, for... | 02/20/1990 |
| 4850832 | Oil pump for automatic transmission with effective sealing arrangement A pump housing is formed with a recess receiving therein pump elements, and a pump cover is secured to the pump housing to close the recess. The pump cover and the pump housing define an interface area therebetween formed with a pump discharge port. The p... | 07/25/1989 |
| 4848177 | Automatic transmission An automatic transmission having a one-way brake in which an outer race is fixed to a rotational member of a planetary gear unit or to a transaxle case and, conversely, an inner race is fixed to the transaxle case or the rotational member of the planetary... | 07/18/1989 |
