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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 |
| 5615643 | Fuel pumps for internal combustion engines A pump comprising a pumping chamber (3) for pumping a liquid; at least part of the pumping chamber (3) being formed by a pumping means (6) having a pumping area (A2); an actuation chamber (2) in communication with a source of pressurised fluid, at least p... | 04/01/1997 |
| 5375581 | Internal combustion engine with supercharger of positive displacement design In an internal combustion engine with a positive displacement charger having a charger housing adjacent to the engine cylinder(s), the gas exchange control element for the combustion chamber inlet is a functional part of the charger, preferably designed a... | 12/27/1994 |
| 5269266 | V-type two cycle supercharged engine A V-type two cycle, supercharged engine having scavenging ports for said cylinders includes a mechanical supercharger and a surge tank. A pair of rotors of the supercharger are horizontally arranged in parallel with each other with one positioned directly... | 12/14/1993 |
| 4998525 | Air supply system for an internal combustion engine The present invention describes a system for supplying the primary combustion air to a reciprocating piston internal combustion engine including a trochoidal chamber air pump having a pair of pumping chambers interposed between an air intake and each of t... | 03/12/1991 |
| 4974556 | Internal combustion engine An internal combustion engine includes a pair of opposed piston assemblies that reciprocate within a single combustion chamber in an engine block. Each piston assembly includes an annular piston head that is received concentrically around a driveshaft whi... | 12/04/1990 |
| 4974557 | Auxiliary drive arrangement of an internal combustion engine for an air compressor An air compressor, which is embodied as a single or multi-cylinder/piston compressor, and which is driven by gear wheels. The drive gear or pinion of the air compressor is disposed on the air compressor crankshaft and meshes with a gear wheel on the camsh... | 12/04/1990 |
| 4964275 | Multicylinder compound engine A compound rotary-reciprocal engine with multiple cylinders of a reciprocator component coupled to a positive displacement, rotary compressor-expander, with systems for coordinating the cycle timing of each cylinder with the timing of the rotary compresso... | 10/23/1990 |
| 4928639 | Multicylinder IC engine with a stroke charging device In the case of a multicylinder IC engine of the piston type with a stroke charging means (12), and in which branch ducts (16, 18, 20 and 22) extend from at least one air inlet duct (149) to the individual engine cylinders (24, 26, 28 and 30) and at the as... | 05/29/1990 |
| 4915064 | Internal combustion engine with opposed pistons A combustion engine comprises a plurality of cylinders. Each cylinder contains aligned pistons displaceable toward and away from one another. Rotary cam disks are connected to a drive shaft and are arranged to be contacted by respective ones of the piston... | 04/10/1990 |
| 4843821 | Multicylinder compound engine A compound rotary-reciprocal engine with multiple cylinders of a reciprocator component coupled to a positive displacement, rotary compressor-expander, with systems for coordinating the cycle timing of each cylinder with the timing of the rotary compresso... | 07/04/1989 |
| 4512293 | Oil recovery system for two cycle diesel engines A reservoir is provided with a mounting flange arrangement for reservoir attachment to an engine block to receive engine oil accumulating in an engine air box. A pump on the reservoir is intermittently activated by the vehicle electrical system to pump re... | 04/23/1985 |
| 4512292 | Accessory gear drive for a two-cycle engine A gear drive for driving accessories such as an oil pump for a two-cycle engine (10) includes a worm member (25) mounted on the crankshaft (14) of the engine. The worm member (25), formed of a low friction plastic material such as nylon impregnated with m... | 04/23/1985 |
| 4480968 | Two-cycle engine compressor Arrangements for engine compressor units are disclosed in which power cylinders operating on the two-stroke cycle are provided with charging air from a blower or other source which also provides charging air to two-cycle compressor cylinders so as to incr... | 11/06/1984 |
| 4470380 | Charging and distributing device for two-stroke engine There is described a charging and distributing device for a piston engine, the device including a variable displacement rotary compressor delivering through one of its shafts to a coaxial rotating distribution tube (1,25), the tube being formed with ports... | 09/11/1984 |
| 4463566 | Internal combustion engine The internal combustion engine performs the thermodynamic cycle partially inside the cylinder, with the piston connected to the crankshaft, and partially in a turbo-supercharger in which there takes place the final stage of the expansion of the burnt gase... | 08/07/1984 |
| 4332229 | Double intake, supercharging I.C. engine An I.C. engine has a block, the engine forming a bore and having a crankshaft. The engine includes: (a) first and second pistons that reciprocate in that bore, (b) connection structure interconnecting the pistons, the pistons operatively connected to the crank... | 06/01/1982 |
