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US 3,949,626 AGranted
Differential gear system and actuator assembly
AssigneeQuaker City Gear Works, Inc.
InventorsBernard E. Berlinger, Jr., Harry Sulzer
Life of this patent
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AssigneeQuaker City Gear Works, Inc.
InventorsBernard E. Berlinger, Jr., Harry Sulzer
Estimating the term…
A differential gear system is disclosed for selectively transmitting power from one of two alternative power sources and which is particularly suited for use in actuating assemblies. The differential gear system includes an input gear rotatable about a sleeve assembly and in driving engagement with a spider gear assembly keyed to the sleeve assembly and driving an output gear also rotatable about the sleeve assembly. In one mode of operation, a first input gear system drives the differential input gear about the sleeve assembly while the sleeve assembly is held stationary by a second input gear system whereby power is transmitted through the spider gear assembly to the differential output gear. Alternatively, second input gear system drives the sleeve assembly while the first input gear system holds the differential input gear stationary whereby power is transmitted through the spider gear assembly to the differential output gear.
A differential gear system for transmitting power from either of two alternate power sources to an output system, said differential gear system comprising an input gear means rotatable about a sleeve member, spider gear means fixed to said sleeve member and being in engagement with said input gear means, and output gear means rotatable about said sleeve member and being in engagement with said spider gear means, said input gear means being operative to drive said output gear means through said spider gear means while said sleeve member is stationary, said sleeve member being operative to drive said output gear means through said spider gear means while said input gear means is stationary.
An actuator assembly adapted to be selectively driven from alternative power sources, said assembly comprising first input gear means and second input gear means, each of said input gear means being adapted to be driven by a separate power source, output gear means adapted to transmit power to an associated apparatus, and differential gear means interposed between said input gear means and said output gear means, said differential gear means including differential input gear means rotatable about a sleeve member, spider gear means fixed to said sleeve member, and differential output gear means rotatable about said sleeve member, said first input gear means being in driving relationship with said differential input gear means for driving said spider gear means and said second input gear means being in driving relationship with said sleeve member for driving said spider gear means.
An actuator assembly including an output drive means for controlling an associated device, said output drive means being rotatably mounted in a boss, said boss being formed with a radial lip and said output drive means being fixed to said boss by a retaining ring, bearing means mounted about said output drive means intermediate said radial lip and said retaining ring whereby thrust in said output drive means is taken up by said boss or said retaining ring.
An actuator assembly adapted to be selectively driven from alternative power sources, said assembly comprising first and second input gear means, each of said input gear means being adapted to be driven by a separate power source, output gear means adapted to transmit power to an associated apparatus, and differential gear means for transmitting power from either of said input gear means to said output gear means, said differential gear means including differential input gear means rotatable about a sleeve member and differential output gear means rotatable about said sleeve member and being in driving relationship with said output gear means, said differential gear means further including spider gear means in meshing relationship with said differential input and output gear means and being carried on a spider member keyed to said sleeve member, said first input gear means being in driving relationship with said differential input gear means and said second input gear means being in driving relationship with said sleeve member, rotation of said first input gear means driving said differential input gear means and said spider gear means while said second input gear means holds said sleeve member and said spider member against rotation whereby said spider gear means drives said differential output gear means and said output gear means, rotation of said second input gear means driving said sleeve member and said spider member while said first input gear means holds said differential input gear means against rotation whereby said spider gear means drives said differential output gear means and said output gear means.
Dependencies are inferred from the claim text.