Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7597759 | Tire bead lubricating system A tire lubricating system including an applicator assembly having plural applicators movable along a vertical axis to enter the bore of a tire and extensible in a radial direction to contact the beads of the tire and apply a lubricant thereto. ... | 10/06/2009 |
| 7213290 | Hydraulically dynamic mono-pig scraper The invention concerns a pig scraper for cleaning the inside wall of a coating agent conduit. The pig scraper includes a body insertable in the conduit and at least one sealing lip that seals against the inside wall of the conduit and extends parallel to a longitudi... | 05/08/2007 |
| 6209684 | Tire bead soaper An apparatus and method is disclosed for lubricating the spaced apart beads of a pneumatic tire prior to mounting of the tire on a wheel. A conveyor is provided for moving the tires having different outside diameters, axial widths, and central opening dia... | 04/03/2001 |
| 5855676 | Tube lining apparatus Tubelining device and technique using a coating-applicator for slip-casting a fluent liner coating onto the internal surface of a tube.... | 01/05/1999 |
| 5536318 | Apparatus for coating molds with finning preventive agent A method of application of finning preventive agent in an apparatus for casting anodes for electrolyzing copper by pouring molten copper into the molds, in which the inner planes of the molds can be coated with the finning preventive agent in a reliable a... | 07/16/1996 |
| 4968379 | Apparatus for uniformly wetting a curvilinear surface Apparatus for uniformly wetting a curvilinear surface of a length of tubing with solvent or other liquid. A wetting element such as a block of porous material has a curvilinear portion with a shape complemental to the shape of the surface to be wetted. Th... | 11/06/1990 |
| 4958587 | Apparatus for exteriorly painting and interiorly coating tires A machine for applying tire paint and tire sealant to recapped tire sidewalls and interiors, respectively. The machine includes a pair of tire paint applicator pads which are carried by a frame and carriage capable of reciprocal motion in three different ... | 09/25/1990 |
| 4741856 | Packaged perfumed granular detergent Perfumed granular detergent compositions are packaged in a fiberboard package comprising a plastic end piece.... | 05/03/1988 |
| 4413587 | Can or tube adhesive applicator An apparatus to apply uniform amounts of adhesive to containers at a high rate of speed. Containers are selected at a variable interval. The containers are positioned against dual spiral timing screws (one timing screw above the other). Turning the timing... | 11/08/1983 |
| 4287237 | Process for impregnating spools of textile with a liquid composition In a process for impregnating a reel of thread in the form of a spool with a liquid resin composition, the thread is arranged on a perforated rigid mandrel so as to form a uniform reel in which the volume of open space approximately corresponds to the des... | 09/01/1981 |
