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Patent No. 5285430

Behavior Modification Wristwatch

A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.

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Class 416/231B - Slotted blade


Subclass of Class 416 - Fluid reaction surfaces (i.e., impellers)
No. of patents: 48
Last issue date: 08/26/2008


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NumberTitleIssue Date
4483659Axial flow impeller
Axial flow impeller having at least two rows, preferably three rows, of a plurality of blades secured substantially radially to a rotor for rotation in a plane about the axis of the rotor. The blades have the same pitch throughout their lengths with the b...
11/20/1984
4313898Radial injector for aspiration of gases
A radial injector having a rotational disk through which gases are aspirated from the atmosphere and mixed with a fluid contacting the disk at the other side thereof. The disk is defining a ring slot by cooperating with a flange portion of the housing. Up...
02/02/1982
4313711Turbine and like rotary machines
A turbine or like rotary machine of the kind in which a fluid, either a liquid or gas, is arranged to act on a plurality of generally radially extending rotor blades, has each rotor blade fixed in position relative to the rotor hub and is substantially sy...
02/02/1982
4285637Propeller assembly
A propeller assembly is provided in which the propeller blades are adjustable both rotatably and longitudinally. Pitch angle of the propeller blades may be adjusted by rotating the blades in the hub of the assembly. The outer diameter of the propeller bla...
08/25/1981
4209281Wind driven prime mover
A vertical axis wind driven prime mover has plural circumferentially spaced horizontal wind driven arms carried by a central hub which is attached to a central vertical axis rotational working shaft. Each wind driven arm carries multiple fixed blades or l...
06/24/1980
4130381Impeller of axial-flow fan
An impeller of an axial-flow fan comprises a hub which carries blades installed thereon with the aid of attachment fittings in the form of a swivelling base with an extension. Each of the swivelling bases supports at least two blades. The distance between...
12/19/1978
4015911Higher efficiency wind motor with receptors of diminished drag characteristics
A wind motor for the conversion of wind power to mechanical or electrical power or other form thereof includes a plurality of wind receptors which have openings therein for the passage of air therethrough during operation of the wind motor, especially whe...
04/05/1977
3986794Reversible ducted fan assembly
A gas turbine engine of a ducted-fan bypass type includes a fan with a plurality of circumferentially spaced airfoils thereon each including first and second portions thereof defining a forward thrust airfoil having a chord to blade spacing ratio greater ...
10/19/1976
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