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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 |
| 7338547 | EMI-absorbing air filter Electro-magnetic-energy absorbing materials are used to treat air filters, such as those used in association with electronic equipment thereby suppressing the transmission of electromagnetic interference (EMI) therethrough. Disclosed are processes and materials for ... | 03/04/2008 |
| 7025799 | Carburetor air flow structure Air flow from the airbox (57) to the carburetor of an internal combustion engine is regulated by a plurality of valve bodies (66) fitted with rotatable lids (77) which permit infinite adjustment of air flow between a fully closed and fully open ... | 04/11/2006 |
| 6974489 | Method and apparatus for protecting electronic devices against particulate infiltration, excessive heat build-up, and for implementing EMC shielding There is disclosed an apparatus and method for protecting electronic devices against excessive heat build-up and particulate infiltration while implementing EMC shielding. ... | 12/13/2005 |
| 6830601 | Carburetor arrangement The invention relates to a carburetor arrangement for an internal combustion engine (1) which drives a work apparatus. The engine (1) has an intake channel (3) leading through a carburetor (2). The intake channel (3) includes an in... | 12/14/2004 |
| 6776706 | Modular fan system for an enclosure In one aspect, a modular fan system includes a fan, a plenum member adapted to be mounted to the fan and adapted to be mounted to an enclosure, a gasket adapted to be mounted between the plenum member and the enclosure, a filter adapted to be mounted within the plen... | 08/17/2004 |
| 6655335 | Small engine for power tools A small engine for outdoor power equipment wherein fuel is pumped to the engine's combustion chamber by a reciprocating piston. A desired rate of reciprocation is determined with the engine under load, e.g., with a grass trimmer cutting grass. Avoidance o... | 12/02/2003 |
| 6607574 | Carburetor arrangement The invention relates to a carburetor arrangement for an internal combustion engine (1) which drives a work apparatus. The engine (1) has an intake channel (3) leading through a carburetor (2). The intake channel (3) includes an intake opening (4) on the ... | 08/19/2003 |
| 6552900 | Device for cooling an electric module and a technical appliance An apparatus having at least one membrane filter for a superficial filtering of at least dirt particles from inflowing cooling air for cooling an electrical module and also at least one cooling device for establishing an air flow in the housing and for di... | 04/22/2003 |
| 6171357 | Air filter A combined air filter and EMI shield including an air filter formed of a conducting metal thread mesh. Preferably, a mesh size of the air filter is selected in accordance with electromagnetic interference and air flow requirements.... | 01/09/2001 |
| 6149698 | Apparatus for installing a ventilation fan An apparatus, for installing a ventilation fan, highly effective for preventing dust, gas or the like from coming in a room has been provided by the present invention. An apparatus 1 for installing a ventilation fan comprises a L-shaped housing 5, for fix... | 11/21/2000 |
| 6063152 | Tuned electromagnetic interference air filter A novel air filter is provided for a vented area for minimizing or limiting electromagnetic interference (EMI) leakage and for providing ventilation, by allowing the egress of gases out of the vented area, and air filtration, by preventing or deterring th... | 05/16/2000 |
| 5762664 | Mobile vessel for removal of noxious fumes A mobile vessel which reduces the transmission of noxious fumes into the surrounding atmosphere emanating from material contained in a material chamber in the vessel, such as bituminous roofing material. An air plenum extends along the vessel beneath a fi... | 06/09/1998 |
| 5725622 | Hood for use on Avionic line replaceable unit A hood preferably made of sheet metal for directing coolant air in air inlet holes in the walls of an avionic box containing electrical components such as an avionic line replaceable unit (LRU). The hood has a top wall with opposite side walls and an end ... | 03/10/1998 |
| 5573562 | Watertight filter for electrical equipment vent A filter assembly is used in combination with a piece of electrical equipment having a vertical side wall formed with vent opening. The assembly has a housing secured to the side wall at the opening thereof and having a closed top side, a closed front wal... | 11/12/1996 |
| 5413619 | Parts cleaning apparatus The blow off unit is an open top box with the front lower than the sides and back. A splash shield is placed at an angle at the back of the work area to deflect the blow off air stream and debris down into the collection filter. A space is left behind the... | 05/09/1995 |
| 4838909 | Cartridge air filter and method of making the same A cartridge air filter for use with an internal combustion engine and method of making the air filter. The air filter comprises a fuel spitback shield having means for collecting spitback fuel from a carburetor and means for substantially containing colle... | 06/13/1989 |
| 4834784 | Air filter choke valve method and spitback shield An airflow controller for use in an air filter for an internal combustion engine. The airflow controller comprises a frame and means for movably mounting the frame in the air filter for relatively lateral movement therein. The airflow controller frame com... | 05/30/1989 |
| 4569803 | Dash pot device A dash pot device for application to a deceleration control system for delaying a return action to the engine idle speed position of a carburetor throttle valve for automobile engines. The device includes a body member having a partition wall dividing an ... | 02/11/1986 |
| 4521231 | High capacity gas filter system A high capacity gas filter having a particulate collector hopper having a bag housing mounted thereon with the walls of the housing extending outwardly and upwardly from the hopper. The walls terminate in gas passages which may be covered by outwardly ext... | 06/04/1985 |
| 4512243 | Ventilator having insert for controlling moisture and method of making same A ventilator device for allowing escape of air from enclosed spaces such as a building includes a unitary housing provided with an insert for controlling the flow of mositure therethrough. The insulator includes a pair of insulative, tubular members betwe... | 04/23/1985 |
| 4508547 | Electrostatic precipitator having a sealing cover or roof Sheet metal covering elements for an electrostatic precipitator are held in place by "C" shaped metal clips which engage over flanges of the I beams on which the sheet metal elements rest. The clips are provided in interstices between spacedly juxtaposed ... | 04/02/1985 |
