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Title:
IMPROVED SPRAGUE GEAR TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2014/028782
Kind Code:
A3
Abstract:
An improved Sprague gear transmission capable of converting reciprocating power inputs in both the forward and backward directions to a continuous rotational output in one direction while always maintaining an optimum ninety degree vector angle during operation and therefore maximizing transfer of power. A first Sprague gear catches during the forward movement of a reciprocating member and then a second Sprague gear catches during the backward movement of the reciprocating member. A pair of synchronous pulleys coupled together by a synchronous belt both rotate in the forward direction during the forward movement and apply forward rotation to a common power output shaft. Then a pair of mating spur gears that rotate in the opposite directions of each other cancel out the reversed movement of the reciprocating member. The power output shaft is thereby rotated twice in the forward direction from a single back and forth movement of a reciprocating member.

Inventors:
ROBERT DANIEL HUNT (US)
ROBERT DANIEL HUNT II (US)
Application Number:
PCT/US2013/055215
Publication Date:
March 27, 2014
Filing Date:
August 15, 2013
Export Citation:
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Assignee:
ROBERT DANIEL HUNT (US)
ROBERT DANIEL HUNT II (US)
International Classes:
F03B13/14; F03B13/22; F03C1/26
Domestic Patent References:
WO2011112877A12011-09-15
WO2011083347A12011-07-14
Foreign References:
US20100047071A12010-02-25
US6247308B12001-06-19
US20110156395A12011-06-30
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