US3910137A — Rotative transmissions at infinitely varying rati…

Claim 1

Independent Claim 212 words

A motion converting device comprising: a fixed base having a longitudinal axis of symmetry and defining an internal closed rolling contact path, a tapered rolling pendulum member disposed within the base and having an external rolling contact path and a longitudinal axis of rotation, said rolling contact paths being adapted for continuous rolling contact with one another and being of complementary arcuate shape with substantially equal radii of curvature and a common center which is radially spaced from the longitudinal axis of the base at all times, means for rotatively supporting the pendulum within the base for continuous rolling contact therebetween, input means for rotatively driving the pendulum member and means for shifting the pendulum along the axis of the base while maintaining the rolling contact and continuous intimate tangential bearing of said pendulum rolling path against said base rolling path thus to produce rolling rotation of the pendulum around the inside of the base with a resulting orbital travel of the axis of the pendulum around the axis of the base, the axial shifting of the pendulum being such as to cause angular departure between the axis of rotation of the pendulum and the longitudinal axis of the base and output means associated with said pendulum for deriving an output therefrom.

Claim 2

Dependent Claim 212 words

A motion converting device comprising: a fixed base having a longitudinal axis of symmetry and defining an internal closed rolling contact path, a tapered rolling pendulum member disposed within the base and having an external rolling contact path and a longitudinal axis of rotation, said rolling contact paths being adapted for continuous rolling contact with one another and being of complementary arcuate shape with substantially equal radii of curvature and a common center which is radially spaced from the longitudinal axis of the base at all times, means for rotatively supporting the pendulum within the base for continuous rolling contact therebetween, input means for rotatively driving the pendulum member and means for shifting the pendulum along the axis of the base while maintaining the rolling contact and continuous intimate tangential bearing of said pendulum rolling path against said base rolling path thus to produce rolling rotation of the pendulum around the inside of the base with a resulting orbital travel of the axis of the pendulum around the axis of the base, the axial shifting of the pendulum being such as to cause angular departure between the axis of rotation of the pendulum and the longitudinal axis of the base and output means associated with said pendulum for deriving an output therefrom.

Claim 3

Dependent Claim 25 words

A motion converting device as defined in claim 1 wherein one of the rolling contact paths is engraved with fine parallel and axially extending splines.

Claim 4

Dependent Claim 32 words

Apparatus as defined in claim 1 wherein the means for rotatively supporting the pendulum comprises a shaft and a universal joint interconnecting the shaft and the pendulum at the apex end thereof.

Claim 5

Dependent Claim 174 words

Apparatus as defined in claim 1 wherein the input means comprising an input shaft connected with the pendulum by means of a first universal joint and the output means comprises, a second outer pendulum of similar shape to the first pendulum and telescopicly disposed thereover for rolling contact therewith, an output shaft connected to the second pendulum through a second universal joint and means for axially shifting the second pendulum relative to the first pendulum and the base whereby the ratio of the input shaft speed with respect to the common gyrating speed of the two pendulum axes about the axis of the base is proportional to the shift of the first universal joint center from a reference point while the ratio between the speed of the output shaft and the input shaft is equal to the ratio between the shifts of the second and first universal joint centers respectively such that the speed parameters of the overall device may be controlled by axial shifting of the joint centers relative to a reference point.

Claim 6

Dependent Claim 28 words

Apparatus as defined in claim 2 wherein the splines appear in a plurality of axially spaced sets on contiguous substantially conical segments which together approximate said arcuate shape.

Claim 7

Dependent Claim 41 words

Apparatus as defined in claim 4 wherein the base member is fixed and the two universal joints are linked to the input and output shafts respectively by means of telescopic couplings, and shift control means associated with each of said couplings.

Claim 8

Dependent Claim 150 words

Speed converter apparatus comprising: a base members defining an Internal annular rolling contact path, first and second rolling contact tapered pendulum members telecopicly disposed within one another and within the base with the apices thereof being at least adjacent one another, said pendulums defining external rolling contact paths which, along with the rolling contact path of the base, are of complementary arcuate shape with substantially equal radii of curvature and a common center which lies radially remote from the axis of the base, a first input shaft connected through a first universal joint to a first pendulum and a second output shaft connected through a second universal joint to the second pendulum, and means for axially shifting the first and second pendulums relative to one another and the base to vary the speed ratio between the two shafts relative to the base member along the common axis of said shafts.

Claim 9

Dependent Claim 150 words

Speed converter apparatus comprising: a base members defining an Internal annular rolling contact path, first and second rolling contact tapered pendulum members telecopicly disposed within one another and within the base with the apices thereof being at least adjacent one another, said pendulums defining external rolling contact paths which, along with the rolling contact path of the base, are of complementary arcuate shape with substantially equal radii of curvature and a common center which lies radially remote from the axis of the base, a first input shaft connected through a first universal joint to a first pendulum and a second output shaft connected through a second universal joint to the second pendulum, and means for axially shifting the first and second pendulums relative to one another and the base to vary the speed ratio between the two shafts relative to the base member along the common axis of said shafts.

Claim 10

Dependent Claim 150 words

A motion converting device comprising: a first element having an internal annular rolling contact surface and having an axis of symmetry, a second member disposed within the first member and having an external rolling contact surface and having an axis of symmetry, said rolling contact paths being of complementary arcuate shape with substantially equal radii of curvature the common center of which is radially spaced from the axis of symmetry of the first member at all times, means for rotatively supporting one of the members relative to the other for rolling contact between the rolling contact surfaces, input means for rotatively driving one of the members, means for shifting one of the members along its axis relative to the other member while maintaining the rolling contact thus to produce angular displacement between the axes of symmetry, and output means operatively associated with the second member for deriving an output therefrom.

Claim 11

Dependent Claim 150 words

A motion converting device comprising: a first element having an internal annular rolling contact surface and having an axis of symmetry, a second member disposed within the first member and having an external rolling contact surface and having an axis of symmetry, said rolling contact paths being of complementary arcuate shape with substantially equal radii of curvature the common center of which is radially spaced from the axis of symmetry of the first member at all times, means for rotatively supporting one of the members relative to the other for rolling contact between the rolling contact surfaces, input means for rotatively driving one of the members, means for shifting one of the members along its axis relative to the other member while maintaining the rolling contact thus to produce angular displacement between the axes of symmetry, and output means operatively associated with the second member for deriving an output therefrom.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1978-10-06	1979-04-07	1979-10-07	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-10-06	1983-04-07	1983-10-07	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-10-06	1987-04-07	1987-10-07	$7700.00	Window Closed / Lapsed

Rotative transmissions at infinitely varying ratios

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