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Patent No. 5719655

System for magnetically attaching templeless eyewear to a person

A system of eyewear that eliminates the need for hinges on the frames of the eyewear.

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Class 180/7.4 - Propeller type


Subclass of Class 180 - Motor vehicles
Definition: Motor vehicle wherein the special driving device is a rotary
No. of patents: 13
Last issue date: 09/11/2007


NumberTitleIssue Date
7267530Windmill apparatuses and methods of mounting blades to enhance their performance
A windmill apparatus has multiple pairs of blades to enhance power output and lift performance. The apparatus has multiple double acting piston/cylinders actuated by the windmill, which includes several clutches that are used to engage and disengage the windmill fro...
09/11/2007
6976899All terrain vehicle
An all terrain vehicle having a casing, a motor assembly, a cradle supporting the propulsion system, and an outer shell. The casing surrounds the propulsion system with three connected rings, each ring capable of independent rotation. The cradle is positioned in the...
12/20/2005
5222569Propulsion means
The present invention generally relates to a propulsion apparatus for imparting thrust to a person. The propulsion apparatus is configured so as to be disposed or mounted on the user such that the thrust is transmitted to the rear of the user's pelvic are...
06/29/1993
4657207Kit for converting a motorcycle to an airborne vehicle
A kit for converting a motorcycle to an aircraft or airborne vehicle includes a glider type parachute with fore and aft lines for connecting to and supporting a motorcycle, in a balanced position, with a propeller system including counter rotating propell...
04/14/1987
4505346Rolling vehicle
A rolling vehicle having a generally spherical cage-like body with a diametrical axle on which a pod is suspended within the cage structure. The pod contains a propulsion unit which provides thrust for driving the vehicle in a particular direction and als...
03/19/1985
4460055System to increase vehicle fuel efficiency
A duct system is disclosed for increasing the efficiency of a vehicle by decreasing the air resistance of the vehicle. The system utilizes a ducting system with a projection means at the front end and the back end of the vehicle to equalize air pressure a...
07/17/1984
4419085Amphibious vehicle
In an amphibious vehicle having driven wheels for movement along dry surfaces and a driving unit for movement through fluids, the improvement comprising at least one of the driven wheels being provided with supports and a positioning mechanism for propell...
12/06/1983
4327808Aerodynamic propeller-driven land vehicle
A land motor vehicle having aerodynamic propellers at the anterior and posterior ends for providing aerodynamic propulsion. The propellers are attached for rotation with a drive shaft which extends longitudinally of the vehicle and which is powered by an ...
05/04/1982
4276950Power assisted pedicycle
A power assisted pedicycle. The present invention is directed to a power assisted pedicycle such as a bicycle or tricycle. The power assisted pedicycle has a power package having a housing having therein an engine directly driving a propeller which provid...
07/07/1981
4260036Powered ski
An improved ski device which incorporates a power unit for providing forward thrust and which is capable of operation over water, snow, ice, artificial surfaces, or the like. In one embodiment, the unit utilizes an upright chassis which is articulated to ...
04/07/1981
4230198Fluid-stream driven ground vehicle
The vehicle has a body provided with ground-engaging portions and has an imaginary longitudinal medial vertical face of symmetry. At least one pair of devices which produce fluid streams is disposed substantially symmetrically on opposite sides of the fac...
10/28/1980
4189019Propulsion support unit
A device for the support of a prime mover for the purpose of providing a one-man locomotion apparatus when used in combination with a vehicle such as skis, skates, wheels, etc., comprising a lightweight framework construction. A harness is provided for at...
02/19/1980
4059168Runner attachment for bicycles with a reaction thrust device
A bicycle frame equipped with two, in line, runner attachments and a thrust producing device for use on snow or ice....
11/22/1977
 
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