Patents by Inventor Emerson L. Kumm

Emerson L. Kumm has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5277666
    Abstract: A belt tensioner employing helical compression springs in series arrangement in a housing located on a support structure to rotate another structure pivotally mounted on the support structure. An idler pulley is located on the rotatable structure and bears against a belt to both tension it and dampen vibrations. The helical compression springs operate on a plate rigidly attached to a movable shaft, which shaft bears directly or preferably indirectly through a thrust linkage on a shoulder of the rotatable structure. The springs, a thrust assembly and shaft are all mounted in a housing which is substantially filled with liquid which dampens the movement of the rotatable structure by the liquid being forced to flow through a restriction in the thrust assembly as it passes from one chamber to another inside the housing. The constant diameter shaft passes through the housing and its end cap, it being sealed hydraulically at each end.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: January 11, 1994
    Assignee: Kumm Industries, Inc.
    Inventor: Emerson L. Kumm
  • Patent number: 5176581
    Abstract: A variable speed drive system for prime mover driven accessories which includes a self-energized controllable belt tensioner in combination with a variable diameter pulley assembly. The tensioner, upon command, uses a pump continuously driven by a fixed diameter pulley positioned by a rotary or linear actuator to take up and tension the belt passing over the same pulley. In the variable speed drive, this tensioner functions typically together with a variable diameter pulley which operates on the belt by forces which are directed toward increasing the variable pulley diameter. A hydraulic flow system with appropriate pump, valves, lines, and actuator can all be self-contained in the rotary tensioner. Selenoid valves are used in an on-off fashion with an actuator to move a pulley arm attached to the actuator generating the required belt tension to decrease the variable pulley diameter as desired upon command.
    Type: Grant
    Filed: June 6, 1991
    Date of Patent: January 5, 1993
    Assignee: Kumm Industries, Inc.
    Inventor: Emerson L. Kumm
  • Patent number: 5011458
    Abstract: A continuously variable, regenerative transmission is disclosed in which a continuously variable transmission assembly is employed in conjunction with a regenerative gear assembly incorporating high and low clutches and situated intermediate a prime mover, such as a vehicle engine, and an output, such as the drive train to vehicle wheels.
    Type: Grant
    Filed: September 12, 1989
    Date of Patent: April 30, 1991
    Assignee: Kumm Industries, Inc.
    Inventor: Emerson L. Kumm
  • Patent number: 4969857
    Abstract: The accessories of a prime mover (such as an engine) are automatically maintained at a more constant speed with varying prime mover speed using a flat belt driving a variable diameter pulley wherein a fixed diameter pulley attached to the variable diameter pulley is used to drive another belt coupled to the accessories.The variable diameter pulley assembly includes a shaft and a pair of pulley sheaves each having a pair of relatively movably guideway disks with belt engaging elements extending between the pulley sheaves. Mutual angular changes between the guideway disks causes a corresponding change in the effective diameter of the pulley assembly. A speed responsive actuator assembly is employed and includes a housing with at least a pair of springs. The actuator assembly is positioned by a balance of forces including the centrifugal force of the belt drive elements, the compression force of the actuator springs, and the forces due to the belt.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: November 13, 1990
    Assignee: Kumm Industries, Inc.
    Inventor: Emerson L. Kumm
  • Patent number: 4854921
    Abstract: Variable speed operation for the accessories of a prime mover (such as an engine) is obtained by a flat belt coupling a variable diameter flat belt driving pulley to flat belt pulleys attached to each of the accessories. The variable diameter pulley assembly includes a shaft and a pair of pulley sheaves each having a pair of relatively movable guideway disks lying alongside each other. Inner and outer guideway disks of each pair include, respectively, first and second series of spiral guideways extending in opposite directions such that the guideway intersections locate bearing ends of a circumferential array of belt engaging elements extending between the pulley sheaves. Thus, mutual angular change between the guideway disks causes corresponding change in the effective diameter of the pulley assembly.
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: August 8, 1989
    Assignee: Kumm Industries, Inc.
    Inventor: Emerson L. Kumm
  • Patent number: 4824419
    Abstract: A flat belt CVT is disclosed in which a geared control system is employed to establish and maintain the effective diameter of each pulley assembly by determining the mutual angular relationship between sets of inner and outer guideway disks provided with spirals oriented in the opposite sense and supporting belt engaging elements at their intersections. The sets of guideway disks are coupled through a planetary gear system which includes a component which can be externally manipulated to adjust the angular relationship between the sets of inner and outer guideway disks while rotating. The planetary gear system includes a first sun gear which meshes with star gears whose shafts are fixed in position with respect to the first sun gear. A second sun gear meshes with planet gears which may orbit around the second sun gear while rotating on a planet carrier.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: April 25, 1989
    Assignee: Kumm Industries, Inc.
    Inventor: Emerson L. Kumm
  • Patent number: 4810236
    Abstract: A flat belt CVT is disclosed in which an idler pulley is situated intermediate variable diameter driving and driven pulley assemblies and within the axial dimension given by their respective inner guideway discs. the frame supporting the idler pulley is linearly moved on a rail by the slack side belt forces to automatically position the idler pulley in an intermediate position between the belt drive elements of the driving and driven pulley assemblies in accordance with their instantaneous effective diameters. While many arrangements are possible (positioning of the idler may be accomplished on or from either side of the center line between the two pulley assemblies, etc.), a preferred disposition is disclosed in which the idler pulley is situated in a region external to the slack belt side in order that the support apparatus for the idler need not enclose moving belts.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: March 7, 1989
    Assignee: Kumm Industries, Inc.
    Inventor: Emerson L. Kumm
  • Patent number: 4810234
    Abstract: A continuously variable transmission employing a flat belt extending between driving and driven pulley assemblies, each having a circumferential array of radially adjustable belt engaging elements, is disclosed in conjunction with a control system. The radial positions of the belt engaging elements of each pulley assembly depend upon the angular relationship between inner and outer guideway disk structures carrying logarithmic spiral guideways oriented in the opposite sense. Each pulley assembly includes a power consuming or producing element, such as an oil pump/motor, which is coupled through harmonic drive differential gearing to the guideway disks. When the load on the hydraulic unit operated as a pump is changed by changing the output pressure against which it pumps, the angular relationship between the inner and outer guideway disk structures changes to correspondingly change the positions of the guideway intersections.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: March 7, 1989
    Assignee: Kumm Industries, Inc.
    Inventor: Emerson L. Kumm
  • Patent number: 4768996
    Abstract: A continuously variable transmission of the type employing a flat belt extending between driving and driven pulley assemblies, each having a circumferential array of radially adjustable belt engaging elements, is disclosed in conjunction with a self-energized control system for establishing the instantaneous radial position of the belt engaging elements. The radial positions of the belt engaging elements of each pulley assembly depend upon the angular relationship between inner and outer guideway disk structures carrying logarithmic spiral guideways oriented in the opposite sense, the resulting intersections of the spiral guideways supporting bearing regions at the ends of the belt engaging elements. Each pulley assembly includes a power consuming element, such as an oil pump, which is coupled through differential gearing, such as a harmonic drive, to the inner and outer guideway disks and to the power consuming element.
    Type: Grant
    Filed: May 19, 1987
    Date of Patent: September 6, 1988
    Assignee: Kumm Industries, Inc.
    Inventor: Emerson L. Kumm
  • Patent number: 4714452
    Abstract: In a continuously variable belt transmission system utilizing a drive pulley and a driven pulley having logarithmic spiral guideways in the pulley disks, the balance actuator torque is reduced significantly by having the logarithmic spiral guideways connected directly to the shaft of the driving pulley in a sense opposite to that of the direction of belt movement and in the case of the driven pulley having the sense of the logarithmic spiral guideways connected directly to the shaft the same as that of the driving belt.
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: December 22, 1987
    Inventors: Emerson L. Kumm, Theodore C. Kraver
  • Patent number: 4591351
    Abstract: In a variable radius pulley drive system wherein a flat drive belt engages the central shanks of drive elements supported by the side pulley sheaves and the radial location of the drive elements is determined by the intersection of logarithmic spiral grooves in the pulley disks of the pulley sheaves whereof the stresses on the bearing members of the drive elements can be substantially reduced by disposing the belt element driving line toward or on the center line or axis of the bearing members of the drive elements.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: May 27, 1986
    Inventor: Emerson L. Kumm
  • Patent number: 4295836
    Abstract: A continuously variable flat belt pulley transmission, using integral rotary actuators, is described together with controls to vary the transmission speed ratio upon demand and simultaneously operate an internal combustion engine or electric motor on a desired torque versus speed schedule.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: October 20, 1981
    Inventor: Emerson L. Kumm
  • Patent number: 4223535
    Abstract: This air conditioning system includes low pressure water vaporization, transfer and absorption, both in a solution concentrating section using solar radiation or other heat input and in a solution diluting section where heat exchange with ambient fan blown air subsequently permits cooling or heating enclosure air. The fan blown enclosure air is cooled or heated in passing through the same heat exchanger by changing the flow paths of the solutions passing to and from the two unique vapor exchangers, which are described in detail. The solutions are separated but contained in a sealed system with storage volume to give a large heat capacity potential by changing the solution concentration to either cool or heat the enclosure air.The various system operational modes are described in detail, with the functioning of the vapor exchangers and heat exchangers in concert with the flows through pipes and ducts as generated by pumps and fans together with control by valves.
    Type: Grant
    Filed: December 22, 1978
    Date of Patent: September 23, 1980
    Inventor: Emerson L. Kumm
  • Patent number: 4153028
    Abstract: A cylindrical rotor is rotatably mounted within the bore of a housing. A plurality of passages arranged in concentric annular rows extend through the rotor. Each passage is generally rectangular in cross section and is inclined with respect to the axis of the rotor. The rotor is forced to rotate in response to a gaseous stream moving through the bore and the passages. Liquid particles entrained within the gaseous stream are atomized in response to the movement of the rotor.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: May 8, 1979
    Inventors: Emerson L. Kumm, Maurice J. Moriarty
  • Patent number: 4151721
    Abstract: Primarily this system includes an air inducting, circulating, and exhausting section and a pair of solar responsive fluid treating sections, one of the latter being provided to cool the air and the other to heat the air. Both solar responsive fluid treating sections, however, function in concert for cooling and heating.The air inducting, circulating and exhausting section has duct portions through which air is drawn from the atmosphere by a fan and either used as admitted or heated or cooled, then directed into the enclosure being served, all or part of the air being recirculated, the part not recirculated being discharged to the atmosphere. The duct portions contain air heating and air and other solution cooling devices as well as fans and guide or flow controlling vanes. One solar responsive fluid treating section has an absorptive chemical solution reservoir, a solution cooler, a solar heated solution concentrator, heat and vapor exchangers, pumps, valves, and connecting lines.
    Type: Grant
    Filed: September 9, 1977
    Date of Patent: May 1, 1979
    Inventor: Emerson L. Kumm
  • Patent number: 4132064
    Abstract: The subject engine includes two turbocompressor units, the first a relatively low pressure device having a rotor with mechanically connected turbine wheel and compressor impeller elements. The second unit has separated turbine wheel and compressor impeller pieces with power being transmitted from the turbine wheel to the compressor impeller through a differential gear assembly. In operation, the compressor of the first unit supplies compressed air to the second unit which increases the pressure of the air and supplies it to a combustor where fuel is added and burned to generate high temperature high pressure gases. These gases are first applied to the turbine of the second unit then to the turbine of the first unit after which they may be passed through a recuperator to heat the compressed air from the compressor of the second unit before it is introduced into the combustor. The differential gear assembly has an output shaft leading to a torque converter or other power transferring mechanism.
    Type: Grant
    Filed: May 26, 1977
    Date of Patent: January 2, 1979
    Assignee: The Garrett Corporation
    Inventor: Emerson L. Kumm
  • Patent number: 4083188
    Abstract: The subject system is primarily for supercharging a low compression Diesel engine. It includes connected turbine and compressor elements and a hydraulic system having a first motor/pump unit mechanically connected with the turbine and compressor elements and a second motor/pump unit mechanically connected, through an output transmission, to the engine. The hydraulic system also includes a plurality of valves, an accumulator, a reservoir, and ducts connecting such elements and the motor/pump units. The first motor/pump unit is of the variable volume type and is controlled by an actuator responsive to fluid pressures in the inlet and exhaust manifolds of the engine. The second motor/pump unit is a fixed displacement device which may be driven by fluid pressure from the accumulator in the engine starting phase and by the engine to supply hydraulic pressure to recharge the accumulator and assist in controlling the operation of the supercharger.
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: April 11, 1978
    Assignee: The Garrett Corporation
    Inventor: Emerson L. Kumm
  • Patent number: 4024772
    Abstract: The subject transmission includes a pair of pulleys mounted for rotation on spaced parallel axes, each pulley having axially spaced sets of oppositely inclined guideways for adjustably receiving drive elements which engage the internal face of an endless flat belt extending around the pulleys and transmitting power from one to the other; one set of guideways on each pulley is axially movable relative to the other to adjust the drive elements toward and away from the pulley axis and vary the effective diameters of the pulleys thus changing the drive ratio of the transmission. Fluid pressure responsive actuators effect the relative movement of the guideways to change pulley diameters under a suitable control system which may be manual or automatic.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: May 24, 1977
    Inventor: Emerson L. Kumm