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Patent No. 6745394

Ballistic resistant body covering

A ballistic resistant body covering for protecting the torso, groin and neck area from ballistic missiles.

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Class 123/53.2 - Multiple crankshafts


Subclass of Class 123 - Internal-combustion engines
Definition: Multiple cylinder engine including two output shafts, the
No. of patents: 12
Last issue date: 04/22/2008


NumberTitleIssue Date
7360511Opposed piston engine
A two-cycle, opposed piston engine with side-mounted crankshafts and cylinders isolated from mechanical stresses of the engine includes tailored cooling of cylinders and symmetrical cooling of the interior surfaces of piston crowns. Each opposed piston includes a co...
04/22/2008
7240647Piston engine
A piston engine which has at least one dry-running piston-cylinder unit. It has a first housing (1), at least one cylinder arranged in or on the first housing (1) in which a piston is reciprocably arranged. The piston-cylinder unit further has a first ...
07/10/2007
6904883Modular internal combustion engines
A line of small internal combustion engines, including twin cylinder engines and single cylinder engines. The engines each include a crankcase, and one or more cylinder members attached to the crankcase, the cylinder members being separate components from the crankc...
06/14/2005
6508223Four cycle outboard internal combustion engine for driving a watercraft
A four cycle outboard internal combustion engine for driving a watercraft with a cylinder housing having cylinders arranged in at least two rows, wherein a piston is reciprocating in each cylinder, the pistons driving an approximately horizontally accommo...
01/21/2003
5836273Reciprocating machine
A reciprocating machine includes a cyclical kinematic chain in which power is transferred between translational and rotational motion. The kinematic chain includes a piston (2) reciprocating in a cylinder (1), connected by two connecting rods (9, 10) to d...
11/17/1998
5383427Two-cycle, air-cooled uniflow gasoline engine for powering a portable tool
A flexible line trimmer is powered by a two-stroke internal combustion engine. The engine is scavenged in a uniflow fashion and has a scavenging cylinder and an exhaust cylinder connected by a common combustion chamber. Each cylinder has a piston turning ...
01/24/1995
4694785Piston apparatus
A piston apparatus has a first pair of spaced-apart cylinders aligned along a cylinder axis. There is a pair of pistons, each piston being slidably received in one of the cylinders for reciprocation along the axis. A pair of spaced-apart crank members are...
09/22/1987
4690113Internal combustion engine
The invention relates to an engine including a cylinder defining a combustion chamber which receives a combustible mixture for the combustion thereof, a piston slidably mounted therein for reciprocation between a first limit position whereat the chamber d...
09/01/1987
4658768Engine
To reduce space requirements, vibrations and certain stresses in an engine, a different one of two pistons is mounted on each end of a single piston rod to which the crankshaft is attached by a cylindrical shaped connector that orbits around the crankpin ...
04/21/1987
4614169Ultra high compression engine
A reciprocating piston machine, such as an internal combustion engine, is provided with a piston translator arrangement operated by a pair of oppositely rotatable crankshaft means disposed on opposed sides of the cylinder longitudinal axis such that the p...
09/30/1986
4543919Engine
To reduce space requirements, vibrations and certain stresses in an engine, a different one of two pistons is mounted on each end of a single piston rod to which the crankshaft is attached by a cylindrical shaped connector that orbits around the crankpin ...
10/01/1985
4419969Flexible cylinder-head internal combustion engine with cylinder compression adjustable for use with available fluid fuels
In an internal combustion engine, two opposed pistons of equal radius are slidably mounted in a cylinder and respectively connected to cranks of unequal throws mounted for rotation at oppositely disposed cylinder ends in a common crankcase. The pistons ar...
12/13/1983
 
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