Patents Examined by Lance W. Chandler
  • Patent number: 5984004
    Abstract: For cooling and/or heating a machine casing, a method and an arrangement is disclosed in which the machine casing is provided with cooling channels in which pipes are received. Between the pipes and the walls of the cooling channels, a cavity remains through which a cooling medium is circulated. A liquid heat exchange medium is circulated through the pipes. In order to vary the heat energy exchanged per time unit between the pipes and the machine casing, the kind of the medium circulating in the cavities is changed, or its composition is changed, or the flow velocity of the heat exchange medium is varied, or any desired combination of the above measures is realized. Thus, the heat flow, i.e. the exchange of heat energy per time unit, can easily be influenced by the provision of cavities between machine casing and heating or cooling medium by controlling its limiting heat exchange factors, i.e. thermal conductivity and heat transfer resistance.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: November 16, 1999
    Assignee: Buss AG
    Inventors: Thorsten Caviezel, Raphael Deschler, Patrick Tschopp
  • Patent number: 4195536
    Abstract: A planetary transmission mechanism comprising two simple planetary gear sets driven by the engine of a vehicle by an input clutch or torque converter and having four friction engaging devices and a one-way engaging device to establish four forward driving ratios and reverse through the transmission. A center output gear is mounted between the input clutch or torque converter and the planetary gear sets. The pair of friction engaging devices comprising clutches associated with the planetary gear set are mounted immediately adjacent the gear input elements which they connect.
    Type: Grant
    Filed: December 8, 1976
    Date of Patent: April 1, 1980
    Assignee: Borg-Warner Corporation
    Inventors: Julius A. Clauss, John S. Ivey, Richard L. Smirl
  • Patent number: 4186627
    Abstract: An oil pressure control means for an automatic transmission for vehicles having a plurality of speed shift valves for changing over supply of oil pressure to a plurality of friction engaging means for establishing various speed stages, a manual shift valve for shifting speed ranges and adapted to selectively supply control pressure to the speed shift valves, and a downshift control valve for controlling supply of the downshift control pressure to a particular speed shift valve so that a downshift operation performed by the manual shift valve does not cause abrupt two stage downshifting from the highest speed stage to the next but one lower speed stage, skipping the next lower speed stage.
    Type: Grant
    Filed: March 15, 1978
    Date of Patent: February 5, 1980
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventor: Koujiro Kuramochi
  • Patent number: 4183256
    Abstract: A variable-ratio angular speed converter of the gear box type is arranged so that each speed reduction setting on the output shaft is a prescribed fraction of the speed reduction of the next-preceding setting. A first tapered gear cluster is fixedly supported on the input shaft, while a plurality of similar second clusters are supported in spaced relation for rotation on an intermediate shaft. Successive speed reductions of the same nominal ratio are imparted (1) between the first cluster on the input shaft and the first second cluster on the intermediate shaft and (2) between successive second clusters on the intermediate shaft. A housing adjustably supported on the output shaft has a selector gear for engaging an arbitrary one of the gears on any of the first and second clusters.
    Type: Grant
    Filed: January 5, 1978
    Date of Patent: January 15, 1980
    Assignee: Milstein Medical Research Foundation, Inc.
    Inventor: Arnold St. J. Lee
  • Patent number: 4183263
    Abstract: A casing for and comprising an operative part of a differential mechanism for a vehicle drive. The casing consists of two identical halves, each half having walls defining a central, generally semi-annular space for differential pinions and gears, the walls being generated around the center line of the vehicle half-axles. Each half-casing also includes oppositely extending, tubular trunnion halves that also are semi-annular in shape and lie circumjacent the inner ends of the vehicle half-axles when the unit is assembled. There is a radial aperture at the pole of each half-casing in the central portion thereof for the reception of an end of a radially extending journal pin for the differential pinions. Each half-casing has a semi-circular flange of diameter larger than the central portion of the casing half. When the two half-casings are assembled, a ring gear or crown wheel fits circumjacently to the central portions of the half-casings against and is secured to the flanges.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: January 15, 1980
    Assignee: Dana Corporation
    Inventor: Carl D. Osenbaugh
  • Patent number: 4183264
    Abstract: An improved multirange synchronous shifting hydromechanical transmission wherein an overrunning clutch in parallel with the friction clutch of the lower gear range of two adjacent ranges is used to permit bridging the discontinuity in efficiency curves of the two ranges at the shift point to sustain operation under a load condition falling between the two efficiency curves and to prevent "hunting" during shifts between the two ranges.
    Type: Grant
    Filed: February 12, 1976
    Date of Patent: January 15, 1980
    Assignee: General Electric Company
    Inventor: Bradley O. Reed
  • Patent number: 4183266
    Abstract: A shaft supporting apparatus for a planetary gear reduction device wherein a driven shaft having a secured flange on one end is supported by both a tapered bearing and a thrust bearing. The outside surface of the tapered bearing is secured within a counterbored recess of the housing of the gear reduction device and the inner bearing bore of the tapered bearing is journaled on the driven shaft. The thrust bearing is disposed within a space between a radially extending wall of the driven shaft flange and a radially extending interior wall of the gear reduction device housing.In the presence of a radial force exerted on the driven shaft, the driven shaft is supported by the tapered bearing and the thrust bearing. By this simple arrangement, the required bearing space for supporting the driven shaft is minimized, thereby providing a thinner and lighter weight planetary gear reduction device.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: January 15, 1980
    Assignee: Kabushiki-Kaisha Fujikoshi
    Inventor: Sinzi Osumi
  • Patent number: 4181044
    Abstract: A drive transmission system having input and output shafts inter coupled by an idler gear arrangement which provides us in a constant meshing relationship with the input and output shafts. A load responsive device on the output shaft allows controlled relative movement between the output shaft and the idler system such that the drive ratio of the transmission system is related to the load on the output shaft.
    Type: Grant
    Filed: May 4, 1977
    Date of Patent: January 1, 1980
    Inventor: Reginald R. Read
  • Patent number: 4181039
    Abstract: A dryer section of a web making or web processing machine comprises a plurality of drying cylinders disposed in spaced relationship so as to provide drying surfaces for alternately drying both sides of a web. The section comprises one or more sets of paired drying cylinders, each set being driven by a single drive coupled to each cylinder in the set by a gear reduction unit supported by the dryer journals. The gear reduction unit is so constructed and arranged as to accommodate a substantial range of spacings of the set of cylinders which it drives, and also a substantial amount of relative deflection of the journals.
    Type: Grant
    Filed: November 3, 1977
    Date of Patent: January 1, 1980
    Assignee: The Black Clawson Company
    Inventor: Richard W. Phelps
  • Patent number: 4175649
    Abstract: The drive mechanism is installed intermediate a motor and a conveyor drive and comprises a clutch arranged between the driving section and the driven section and a brake arranged to stop the driven section. A pump is drivably connected to the driven section and feeds fluid pressure via a relay control valve to actuate the clutch and the brake, the control valve ensuring that the clutch is not applied before the brake is released.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: November 27, 1979
    Assignee: Coal Industry (Patents) Limited
    Inventor: Harry Monks
  • Patent number: 4173905
    Abstract: A change-speed gearbox has coaxial input and output shafts. Five intermediate shafts are equi-spaced around the input shaft and each has two gears fixed thereto, one of which meshes with a common gear on the input shaft, the intermediate shafts being movable axially.Five gears of different diameters are fixed to the output shaft around which five secondary shafts are carried by a rotatable cage. The five secondary shafts each have two gears fixed thereto, one of which meshes with a different one of the gears on the output shaft.Any one of a possible twenty five gear ratios between the input and output shafts may be obtained by rotating the cage until a selected one of the secondary shafts is in the same radial plane as a selected one of the intermediate shafts, that intermediate shaft then being moved axially to bring the second gear thereon into mesh with the second gear on the selected secondary shaft.
    Type: Grant
    Filed: June 17, 1977
    Date of Patent: November 13, 1979
    Assignee: Masson Scott Thrissell Engineering, Ltd.
    Inventors: Graham A. B. Byrt, Douglas E. Riddler
  • Patent number: 4173270
    Abstract: A hydrokinetic torque converter mechanism for use in an automotive vehicle driveline comprising a bladed impeller, a bladed turbine and a bladed stator situated in toroidal fluid flow relationship, an impeller housing surrounding the bladed members, a lock-up clutch structure in said housing adapted to establish a direct connection between said impeller and said turbine, said turbine being connected to a turbine shaft that in turn is connected to torque input elements of a multiple ratio gear system, a one-way coupling located between said turbine shaft and said clutch structure for accommodating transfer of torque from said impeller to said turbine shaft but preventing torque transfer in the opposite direction thereby allowing coast braking of the driveline as the turbine tends to overrun the impeller but permitting direct mechanical torque transfer from the impeller to the turbine shaft during normal torque delivery, the driveability during coasting thereby being improved.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: November 6, 1979
    Assignee: Ford Motor Company
    Inventors: Howard L. Croswhite, James H. Gregg, Angelo L. Guido
  • Patent number: 4172393
    Abstract: Planetary gearing for vehicles such as earth-moving loaders gives a plurality of forward ratios and a plurality of reverse ratios each approximately equal to one of the forward ratios. The gearing has four planetary gear sets with input clutches selectively driving sun gears of the first and second sets. The output is connected to the planet carrier of the first set and to sun or ring gears of the third and fourth sets. One other element of the third set is connected to one other element of the fourth set and to releasable holding means. The remaining element of the fourth set is connected to the annulus of the first set of the planet carrier of the second set.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: October 30, 1979
    Assignee: AB Volvo
    Inventor: Albert A. Miller
  • Patent number: 4170905
    Abstract: A reversing gear connecting a gas turbine to a propulsion shaft includes a big-diameter first gear wheel rotatable with the propulsion shaft and two pinions meshing therewith. There are further two intermeshing gears, one aligned with each of the pinions. One of the pinions has a through bore, permitting the passage of the output shaft from the turbine, a two-way clutch between this first pinion and its aligned gear, to connect, at will, last mentioned gear to the output shaft, or said shaft to the first pinion, the other pinion and its aligned gear being permanently interconnected.
    Type: Grant
    Filed: August 31, 1977
    Date of Patent: October 16, 1979
    Assignee: Collin Consult AB
    Inventor: Lars T. Collin
  • Patent number: 4170149
    Abstract: A manually operable, self engaging shifting lever construction which is integrally incorporated into a multi-speed transmission. The lever construction itself incorporates a stiff tension spring member which is radially deflectable from its normally straight position relative to the axis thereof. Pivotally moving the lever construction about its fulcrum produces sliding movement of an input gear cluster along an input shaft means. At predetermined locations along the input shaft longitudinally, the gear cluster becomes engageable with drive gear assemblies of an output, a drive gear cluster which is mounted on an output shaft. The flexural characteristics of the lever construction permit simple, safe shifting of the input gear cluster, without the impass normally encountered due to abutment of gear teeth.
    Type: Grant
    Filed: August 22, 1977
    Date of Patent: October 9, 1979
    Assignee: Bunker Ramo Corporation
    Inventor: Ralph A. Koegel
  • Patent number: 4168637
    Abstract: A power transmission having two planetary assemblies, each having at least one carrier with planet gears, at least one sun gear, and at least one ring gear. A speed-varying module is connected in driving relation to the input shaft and in driving relationship to the sun gear or gears of the first planetary assembly. The speed-varying means may comprise a pair of hydraulic units hydraulically interconnected so that one serves as a pump while the other serves as a motor and vice versa, one of the units having a variable stroke and being connected in driving relation to the input shaft, the other unit, which may have a fixed stroke, being connected in driving relation to the sun gear. The input shaft is also connectable by a first clutch to a carrier of the first planetary assembly and by a second clutch to a sun gear of the second planetary assembly.
    Type: Grant
    Filed: April 15, 1977
    Date of Patent: September 25, 1979
    Assignee: Orshansky Transmission Corporation
    Inventors: Elias Orshansky, Jr., deceased, William E. Weseloh
  • Patent number: 4164876
    Abstract: In a transmission control system for a multiple speed ratio powershift transmission having a plurality of fluid pressure operated clutches adapted to establish torque ratio changes and also including an electronic speed sensing system and downshift valve means for automatically shifting the transmission from a higher speed ratio to a lower speed ratio at a first predetermined vehicle ground speed, the addition of a downshift inhibitor or delay circuit for prohibiting downshifts from the higher speed ratio to the lower speed ratio while the vehicle undergoes a full throttle directional reversal.
    Type: Grant
    Filed: May 9, 1977
    Date of Patent: August 21, 1979
    Assignee: Clark Equipment Company
    Inventor: Jon H. Peppel
  • Patent number: 4164156
    Abstract: A multi-range synchronous shifting concentric gear train package having two inputs and a single output which when connected to a mechanical input and to the output of an infinitely variable drive device (shown as a hydrostatic component) powered by the same mechanical input with the input axes aligned with the center of rotation of the components of the gear package forms an all concentric multi-range synchronous shifting hydromechanical transmission. The combination of the same gear train package with mechanical and hydrostatic inputs in combination with right and left output planetary gear sets and a hydrostatic steer arrangement powered by the same mechanical input forms a hydromechanical steering transmission having a concentric gear train package. Gear train elements for exchanging the rotational movement of inner and outer shafts of a set of concentric shafts to permit implementation of the concentric gear train package are also disclosed in detail.
    Type: Grant
    Filed: January 25, 1978
    Date of Patent: August 14, 1979
    Assignee: General Electric Company
    Inventor: Bradley O. Reed
  • Patent number: 4164155
    Abstract: A multi-range synchronous shifting concentric gear train package having two inputs and a single output which when connected to a mechanical input and to the output of an infinitely variable drive device (shown as a hydrostatic component) powered by the same mechanical input with the input axes aligned with the center of rotation of the components of the gear package forms an all concentric multi-range synchronous shifting hydro-mechanical transmission. The combination of the same gear train package with mechanical and hydrostatic inputs in combination with right and left output planetary gear sets and a hydrostatic steer arrangement powered by the same mechanical input forms a hydromechanical steering transmission having a concentric gear train package. Gear train elements for exchanging the rotational movement of inner and outer shafts of a set of concentric shafts to permit implementation of the concentric gear train package are also disclosed in detail.
    Type: Grant
    Filed: January 25, 1978
    Date of Patent: August 14, 1979
    Assignee: General Electric Company
    Inventors: Bradley O. Reed, John M. Nolan
  • Patent number: 4164157
    Abstract: Proposed in this application is a device for adjusting ignition timing in an engine for a motor-cycle having an engine, an ignition circuit for the engine, a fluid coupling connected to the engine, a power transmission mechanism which receives driving force from the fluid coupling, and shift indicating switch which changes over in association with the power transmission mechanism to indicate a low speed drive, a high speed drive, or the neutral position, wherein the ignition timing adjusting device comprises: a plurality of ignition signal emitters, each having differing signal emission timing and producing an ignition signal output to actuate said ignition circuit when the engine is in a driven state and the vehicle is in a stopped state; and a switching element which, in accordance with change-over operation of the shift indicating switch device, controls in such a manner that any one of the output signals from the plurality of ignition signal emitters may be fed as an input into the ignition circuit.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: August 14, 1979
    Inventors: Masayuki Kudo, Nobuo Miura, Shigetaka Hada