Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7316762 | Dynamic flange seal and sealing system The present invention features a flange to flange dynamic seal and sealing system, particularly suited for use within high temperature, high pressure environments, such as a delayed coking process. The dynamic flange seal and sealing system comprises two primary ele... | 01/08/2008 |
| 7128074 | Scarifier for the interior surface of a pipeline An apparatus for scarifying an interior surface of a sewer pipe, which includes a vehicle moveable along an interior of the sewer pipe and a scarifying assembly connected to the vehicle having a fluid nozzle assembly. The fluid nozzle assembly has at least one branc... | 10/31/2006 |
| 6964727 | Coke drum bottom de-heading system The present invention features a coke drum de-heading system comprising (a) at least one coke drum having an orifice therein; (b) a de-header valve removably coupled to the coke drum designed to de-head the coke drum; and (c) an exchange system, including an upper a... | 11/15/2005 |
| 5580393 | Apparatus and method for removing undesired coatings from the interior of tubes A method of removing undesired coatings from the interior surface of tubes includes inserting a fluid-dynamically unstable impact head into the tube, providing or maintaining fluid flow through the tube and altering the length of a tether attached to the ... | 12/03/1996 |
| 5540275 | Single impact rapping hammer system and method for cleaning tube units A rapping hammer system adapted for periodically rapping and cleaning tubes of a heat exchanger unit to remove undesired deposits from outside the tubes. A plurality of rapping hammers are each pivotably attached to a radial arm extending outwardly from a... | 07/30/1996 |
| 5465448 | Pipe interior cleaning apparatus The present invention provides a pipe interior cleaning apparatus which can be operated at an inexpensive cost and with no special facility required, assuring an improved derusting effect. This pipe interior cleaning apparatus comprises a rod-like guide, ... | 11/14/1995 |
| 5414887 | Apparatus for cleaning air ports of a chemical recovery furnace Apparatus for cleaning air ports in a chemical recovery furnace comprises an elongated cleaning rod provided with a tip on one end adapted to be inserted through an air port with a ramming motion to dislodge residual build-up. The cleaning tip is substant... | 05/16/1995 |
| 5315966 | Hammering device for tube boilers To clean boiler tubes, a hammering device for shaker rods comprises a series of hammers mounted on a horizontal shaft for vertical rotation. The hammers are moved clockwise around the shaft somewhat less than 180° from the face of the rod, and then relea... | 05/31/1994 |
| 5180210 | Chiseling apparatus A piston and cylinder combination mounted on the end of an elongated handle projects into a chimney. A chisel is connected to the piston to reciprocate with the piston in response to high pressure air delivered to the cylinder. The chisel has a cutting ed... | 01/19/1993 |
| 5179757 | Apparatus for descaling a process vessel Apparatus for removing deposits from the interior surface of a vessel wall including an elongated support column having its upper end attached to a cable to position the support column vertically within the vessel. A hammer assembly pivotally and rotatabl... | 01/19/1993 |
| 5020183 | Cleaning apparatus for a process vessel An apparatus and method for cleaning hard deposits from the interior wall of a digester vessel. The apparatus includes a work platform assembled within the interior of the vessel from a plurality of prefabricated frame elements introduced into the vessel ... | 06/04/1991 |
| 4974617 | Process and apparatus for remotely clearing a liquid-filled pipe For clearing or unblocking a pipe (10) filled with a liquid (12) and in which a plug (14) has formed, an apparatus (16) is connected to said pipe. This apparatus applies to the liquid harmonic-rich longitudinal pressure waves and which are preferably cons... | 12/04/1990 |
| 4802256 | Slide hammer chimney cleaner A chimney cleaning apparatus (10) is suspended from a chain (34) for movement through a chimney flue (16) and includes a scraping plate (12). The outer periphery of the scraping plate (12) conforms to the cross-sectional shape of the chimney flue (16) and... | 02/07/1989 |
| 4762668 | Venturi flow nozzle ultrasonic cleaning device An ultrasonic cleaning device for a venturi flow nozzle in a pipe in a fluid system which includes one more transducer assemblies for generating and transmitting sound waves to the nozzle to effect a cleaning action.... | 08/09/1988 |
| 4674914 | Replacing mains The invention relates to a self-propelled apparatus 1 for replacing main such as a gas main 2, comprising a single double acting hydraulic piston and cylinder combination 3 connected with slidable devices 4, 6 operable by the device for step-by-step movem... | 06/23/1987 |
| 4603747 | Apparatus for removing internal tiles from chimneys Apparatus is provided for removing the interior tile lining from brick chimneys. The apparatus includes an assembly that is lowered into the chimney, the assembly comprising a reversible electric motor mounted within a frame, and a weighted impact member ... | 08/05/1986 |
| 4528040 | Chimney cleaning method Hard, brittle creosote deposits are removed from a chimney flue by striking the sharp ends of rods of flue cleaning apparatus against the deposits with penetrating impact and creosote chip-producing effect so as to break away creosote adhering to the flue... | 07/09/1985 |
| 4440240 | Method of making holes in the soil and apparatus for performing this method The method of making holes in the soil includes driving a capsule into the oil by percussive action and filling the capsule with the soil. Then the driving of the capsule into the soil by percussive action is continued, with the soil passing therethrough. ... | 04/03/1984 |
| 4408368 | Chimney cleaning device Discloses a portable chimney device for removing creosote deposits and soot from a chimney flue while the chimney is in operation, or during a chimney fire, and without said device causing damage to the chimney flue, its liner, or chimney bottom. The devi... | 10/11/1983 |
| 4380842 | Tool support apparatus Tool support apparatus having a frame mounted on wheels and motors for driving the wheels to move the frame. A ram tube carrying different tools at its lower end supported in a cylinder mounted on an oscillator bracket which cooperates with an oscillator ... | 04/26/1983 |
| 4173806 | Apparatus for cleaning conduits or the like Apparatus for cleaning straight or arcuate conduits has a housing which fits with clearance into a conduit and has an elastic washer slidably engaging the internal surface of the conduit so that the pressure of a fluid which fills the conduit behind the h... | 11/13/1979 |
| 4095306 | Reaction ladle cleaning machine A cleaning machine for removing slag from the interior of a reaction ladle characterized in that the ladle is supported in upright position on a turntable for angular indexing about its vertical axis after each vertical band of slag has been chipped or br... | 06/20/1978 |
| 3995344 | Low profile soaking pit machine A low profile soaking pit machine for breaking and removing slag from a soaking pit. The machine has a low horizontal profile above the soaking pit to permit a soaking pit cover carriage to pass over the machine when the machine is resting on the soaking ... | 12/07/1976 |
| 3990836 | Hearth cleaning apparatus A hearth cleaning apparatus includes a wheeled car movable along a floor at the side wall of a reheat furnace wherein metallic workpieces are heated while they are advanced along the furnace hearth. The car is latched to the side wall of the furnace at an... | 11/09/1976 |
