Alfred S Smemo

US Patent:

6491600, Dec 10, 2002

Filed:

Sep 11, 2001

Appl. No.:

09/951846

Inventors:

Alfred Sigmund Smemo - Dubuque IA
Mariano Torres Galan - Madrid, ES

Assignee:

Deere Company - Moline IL

International Classification:

F16H 4704

US Classification:

475 83

Abstract:

A compact final drive assembly comprises a stationary housing and a rotatable housing. A bent axis hydraulic motor is coupled to the stationary housing. The bent axis hydraulic motor drives a planetary drive unit for driving the rotatable housing. A clutch/brake unit controls the planetary drive unit by braking the planet carrier. The clutch/brake unit is provided with a ring piston that is supplied pressurized hydraulic fluid from the motor inlet port of the bent axis hydraulic motor.

US Patent:

6644429, Nov 11, 2003

Filed:

Jan 28, 2002

Appl. No.:

10/058165

Inventors:

Gladys L. Evans - Dubuque IA
Judson P. Clark - Dubuque IA
Glenn Owen Scheer - Durango IA
William Michael Walter - Galena IL
William Daniel Robinson - Epworth IA
David William Stubben - Dubuque IA
Alfred Sigmund Smemo - Dubuque IA

Assignee:

Deere Company - Moline IL

International Classification:

B60K 17356

US Classification:

180307, 180243, 180246

Abstract:

A dual path hydrostatic drive system having an electronic auxiliary drive auxiliary drive controller controlling the hydraulic output of left and right variable displacement pumps in response to the speed of the main drive wheels and a speed ratio signal from a speed ratio input control. In addition, the auxiliary drive auxiliary drive controller controls the outputs of the pumps within three basic boundary conditions; a hydraulic pressure boundary condition, a motor speed boundary condition and a power boundary condition. A clutch mode activation switch has two positions for signaling the auxiliary drive auxiliary drive controller to operate in a first mode in which the auxiliary drive system is shut down upon activation of the main clutch or a second mode where the auxiliary drive controller attempts to mirror the operation of the main drive wheels.

US Patent:

20060293142, Dec 28, 2006

Filed:

Jun 24, 2005

Appl. No.:

11/165968

Inventors:

Mariano Torres - Madrid, ES
Alfred Smemo - Dubuque IA, US

International Classification:

F16H 37/08

US Classification:

475331000

Abstract:

A planetary gear assembly for a final drive with an external surface. Planetary gears are assembled in an integrated planetary gear carrier in which the external surface of the final drive forms a part of the carrier. The external surface is continuous in the vicinity of each planetary gear in the assembly, i.e., there are no holes in the external surface associated with the connection of the planetary gears to the integrated planetary gear carrier.

US Patent:

20120219351, Aug 30, 2012

Filed:

Feb 25, 2011

Appl. No.:

13/034949

Inventors:

Mark J. Besler - Dubuque IA, US
Jeffrey S. Turner - Coffeyville KS, US
Alfred S. Smemo - Dubuque IA, US

International Classification:

F16D 1/02

US Classification:

403 37, 4033591

Abstract:

The present invention provides a coupling device for coupling an input shaft to an output shaft. The coupling device includes a housing having a first end and a second end. The coupling device further includes a first and second set of splines defined along the inner wall of the housing. The first set of splines is disposed near the first end and is configured for engaging splines of the input shaft. The second set of splines is disposed near the second end of the housing and is configured for engaging splines of the output shaft. The length of the first set of splines is substantially the same as the length of the second set of splines.

US Patent:

20130196812, Aug 1, 2013

Filed:

Jan 27, 2012

Appl. No.:

13/359761

Inventors:

Alfred S. Smemo - Dubuque IA, US
Kyle K. McKinzie - Altamont KS, US

International Classification:

F16H 3/62
B23P 11/00
F16H 3/46
F16H 3/44
F16H 37/04

US Classification:

475275, 475269, 475302, 475290, 298931

Abstract:

The present disclosure provides a multi-ratio scalable transmission system for multiple vehicle configurations. The system includes an input disposed along a first axis configured to receive torque from a variable speed propulsion device and an output disposed along a second axis and coupled to the input. The system further includes a selectably engageable clutch coupled between the input and output and a planetary unit coupled to both the input and the output, where the planetary unit includes at least one planetary gearset and a brake. The system is configurable based on a particular vehicle configuration such that the first axis and second axis can be coaxial or non-coaxial.

US Patent:

41788133, Dec 18, 1979

Filed:

Jan 26, 1977

Appl. No.:

5/762587

Inventors:

Alfred S. Smemo - Dubuque IA

Assignee:

Deere & Company - Moline IL

International Classification:

F16H 5710

US Classification:

74764

Abstract:

A planetary transmission of a vehicle drive train comprises an input section including three planetary gear sets and three brakes that are selectively operable to condition the three gear sets for respectively establishing a forward converter drive, a reverse converter drive and a direct drive at an output shaft of the input section. The planetary transmission further comprises an output or range section coupled to the output of the input section. The output section includes three planetary gear sets connected together so as to form a three-stage planetary set and three brakes are respectively associated with the three gear sets and selectively operable to control the three gear sets such that low, intermediate and high output speeds are established for every input to the output section with drive torque being delivered by all three gear sets for low speed operation, by two gear sets for intermediate speed operation and by a single gear set for high speed operation.

US Patent:

49479741, Aug 14, 1990

Filed:

Jan 15, 1988

Appl. No.:

7/144847

Inventors:

Alfred S. Smemo - Dubuque IA
Donald O. Johannsen - Sherrill IA

Assignee:

Deere & Company - Moline IL

International Classification:

F16D 25063

US Classification:

192 85AA

Abstract:

A hydraulic clutch assembly having a hydraulic circuit that is filled with oil even when the clutch is deactivated. The piston of the clutch is provided with a sealing assembly which bifrucates the cylinder into a filled an unfilled portion. The sealing assembly is located so that the centrifugal head attributable to the hydraulic fluid does not exceed the spring force of the biasing springs of the clutch piston. The sealing assembly comprises a circular land that is machined into the piston face.

US Patent:

39541460, May 4, 1976

Filed:

May 19, 1975

Appl. No.:

5/578687

Inventors:

Alfred Sigmund Smemo - Dubuque IA

Assignee:

Deere & Company - Moline IL

International Classification:

F16C 118

US Classification:

180 77R

Abstract:

A vehicle, such as a crawler tractor or the like, includes separate reversible hydrostatic transmission units which are adapted for driving the tracks of the tractor. The transmission units are controlled through means including a valve assembly actuated by a first manually operable linkage for simultaneously effecting changes in the speed and direction of rotation of the units, and through means of a pair of second manually operable linkages for in effect overriding the transmission condition selected by the first manually operable linkage by selectively retarding the speed of and/or changing the direction of rotation of the hydrostatic motors for effecting steering of the vehicle.