U.S. patents available from 1976 to present.
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Patent No. 5265827

Paddle Wheel Plane

An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.

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Class 400/317.3 - Powered via engagement of a clutch


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein the carriage* is moved in
No. of patents: 5
Last issue date: 01/16/2007


NumberTitleIssue Date
7162775Boot cover hinge
A trunk lid hinge in accordance with embodiments of the present invention provide the ability to operate a trunk of an automobile in a conventional manner as well as in an unconventional manner about two pivot axes. The trunk lid hinge comprises a hinge mount, a hin...
01/16/2007
4462709Type carrier return and platen line space device for typewriters
A carriage return device in a typewriter including: an interposer operable through operation of a key lever for the carriage return; a cycle bail driven by the interposer; a driving source adapted to rotate a main shaft by a predetermined number of rotati...
07/31/1984
4383777Torque-limiting carriage return knock-off mechanism
A carriage return device utilizing a spring clutch and shock unloader spring is disclosed in conjunction with a cord tension sensing mechanism for detecting the cord tension increases when the paper carriage of a typewriter ceases to move and the carriage...
05/17/1983
4029192Digital circuit for controlling the return speed of a business machine carriage
A digital electrical circuit for selectively activating a clutch mechanism for controlling the return speed of a business machine carriage. A carriage speed pulse transducer provides a series of sync pulses with intervals between each sync pulse being a f...
06/14/1977
4023665Power driven typewriter
A typewriter comprising a shiftable carrier supporting a rotatable type drum having a plurality of circumferentially extending rows of type characters thereon. Typing keys, when depressed, condition actuators and cause engagement of a power driven cyclic ...
05/17/1977
 
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