U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6266829

Combination Beverage Container and Spittoon

A combination beverage container and spittoon includes a bottom portion including outer wall and a first inner wall defining a spittoon space.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 123/58.2 - Locked pistons


Subclass of Class 123 - Internal-combustion engines
Definition: Multiple cylinder engine wherein the pistons of the first
No. of patents: 10
Last issue date: 09/01/1998


NumberTitleIssue Date
5799628Internal combustion engine with rail spark plugs and rail fuel injectors
A two stroke cycle reciprocating piston internal combustion engine having horizontally opposed cylinders and pistons, scotch yokes and self adjusting sliding blocks for the interface between the scotch yokes and crankpins, and secondary cylindrical piston...
09/01/1998
5056471Internal combustion engine with two-stage exhaust
An internal combustion engine is provided having pairs of separately designated combustion and exhaust cylinders for implementing a two-stage exhaust system which derives work from the combustion gases of the combustion cylinders. The piston within each e...
10/15/1991
5031470Device for converting linear reciprocating motion to rotary motion
An arrangement for converting linear motion from a power source to rotary motion, where the power source is intended to coact with a cam in a manner to produce rotary motion, this rotary motion being carried out by a shaft. The invention is characterized ...
07/16/1991
4981114Stratified charge internal combustion engine
Each main cylinder (10) of an internal combustion engine is provided with a smaller idle cylinder (12). Pistons (14, 20) in the cylinders (10, 12) are operated substantially in unison and are driven by crank shafts (18, 24) which are mechanically connecte...
01/01/1991
4858571Liquid pump driven by a two-cycle, dual piston internal combustion engine
An internal combustion engine having as upper cylindrical gas chamber and a lower cylindrical gas chamber. The upper chamber having a bottom portion serving as the combustion chamber. A cooling jacket is provided between the two chambers to cool the seali...
08/22/1989
4745886Back and forth motion type of the internal engine with the separate gas chamber and its application equipment
An internal combustion engine having an upper cylindrical gas chamber and a lower cylindrical gas chamber. The upper chamber having a bottom portion serving as a compression chamber and the lower chamber serving as the combustion chamber. A cooling jacket...
05/24/1988
4465036Internal combustion engine
A multi-cylinder internal combustion engine is disclosed including a crank shaft housing and a crank shaft connected to a plurality of pistons which reciprocate within the cylinders. The cylinder housing is vertically mounted to the crank shaft housing. A...
08/14/1984
4455976Internal combustion engines
A four cycle internal combustion engine in which cylinders are arranged in pairs. The pistons in each pair of pistons are arranged to operate in tandem. A U shaped arm which is arranged to turn around a center is connected through one set of linkages to a...
06/26/1984
4332229Double 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
4138897Balanced crankshaft mechanism for the two piston Stirling engine
A balanced crankshaft mechanism for the two piston Stirling engine which permits the use of a single crankpin and eliminates side forces on the pistons. A triangular yoke has connected to its respective apexes the connecting rods for each piston and the c...
02/13/1979
 
Sign InRegister
Username  
Password   
forgot password?