Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 8161833 | Power take-off for an agricultural vehicle A power take-off device for an agricultural vehicle, in particular a tractor, wherein an input shaft is connected to a first and, selectively, a second output shaft by moving a sleeve-type selector between three selection positions, in the first of which, the input ... | 04/24/2012 |
| 7347614 | Split drive apparatus for a vertical mixer A multiple auger vertical mixer with a drive system comprised of a powered driving means and a first gearbox with multiple output shafts. The output shafts supply rotational power for at least two final driven gearboxes which drive the augers. ... | 03/25/2008 |
| 7284625 | Quick connect assembly for ATV implements A quick connect power take-off assembly adapted for an all-terrain vehicle (ATV). The quick connect power take-off assembly includes a housing, a driving assembly that is fixedly mounted to the ATV, a driven assembly that is releasably connected to the driving assem... | 10/23/2007 |
| 7282003 | Powertrain including input disconnect and accessory drive system for an electrically variable transmission A vehicle powertrain includes an engine connected to an input torque device including a torque isolator. A plurality of intermeshed accessory drive gears are connected to the torque device for driving accessories. A hybrid electromechanical transmission is connected... | 10/16/2007 |
| 7121161 | Parallel shaft transmission An input shaft 10 is connected rotationally with an intermediary shaft 20 through a main drive gear GMV, a connecting idle gear GCC and a connecting driven gear GCN and also connected rotationally with a countershaft 30 through the main drive ge... | 10/17/2006 |
| 7047839 | Power transmission arrangement of a working vehicle and transmission for the working vehicle In a transmission for a working vehicle, a PTO input shaft is located with its rotational axis extending in a vehicle lengthwise direction substantially at a widthwise center of a transmission case along a vehicle width direction. A running power input shaft is loca... | 05/23/2006 |
| 6805018 | Portable multi-speed, multi-input, multi-output drive for power take-off's and the like A gearbox containing two shafts connected internally causing the shafts to operate at different speeds. One shaft has a 21-spline female connection on one end with a 21-spline male connection on the other end. The other shaft has a 6-spline female connection on one ... | 10/19/2004 |
| 6659209 | Tractor A tractor having a mid-mount type mower includes a pair of frames extending in a fore and aft direction, and a transmission case extending and supported between the pair of frames. The transmission case houses a power take off clutch disposed above a rear... | 12/09/2003 |
| 6598496 | System for driving vehicle accessories through an electro-mechanical interface An electro-mechanical interface incorporated in a series hybrid auxiliary power unit. According to the present invention the electro-mechanical interface employs a first tier of geared output shafts rotatably supported within a frame and meshingly engaged... | 07/29/2003 |
| 6553759 | Transmission for a working vehicle The present invention is so designed that a housing of a transmission which can drive front wheels and rear wheels and a power take-off shaft is constructed having a first chamber and a second chamber. A hydrostatic transmission is housed in the first cha... | 04/29/2003 |
| 6401848 | Three-speed power take-off assembly A PTO assembly that supplies rotational motion to at least one piece of equipment used in conjunction with a power source. The power source can be mounted on a work vehicle or in a power station. The PTO assembly is coupled to the output shaft of the powe... | 06/11/2002 |
| 6318485 | Tractor A tractor having a mid-mount type mower includes a pair of frames extending in a fore and aft direction, and a transmission case extending and supported between the pair of frames. The transmission case houses a power takeoff clutch disposed above a rear ... | 11/20/2001 |
| 6003391 | Transmission mechanism for a working vehicle A transmission mechanism having a PTO transmission system and a traveling transmission system and used for a working vehicle, which is so constructed that a input shaft 8 is coaxially freely perforated through a hollow traveling clutch shaft 13, both ends... | 12/21/1999 |
| 5983737 | Kit for a power takeoff assembly for converting same to include selectively controlled multiple power takeoff shafts A kit for converting a base transmission having a mid PTO shaft and a detachable original equipment rear cover into an optional configuration transmission having a rotatable mid PTO shaft and a rotatable rear PTO shaft that are both selectively drivable s... | 11/16/1999 |
| 5970808 | Method of converting power takeoff assembly to include selectively controlled multiple power takeoff shafts A vehicle transmission assembly includes a power means, a clutch connected to the power means and having an output power shaft, and a plurality of gears and substantial alignment. The gears include a first gear on the power shaft meshed with a second gear... | 10/26/1999 |
| 5947218 | Power take-off transmission for a working vehicle A transmission casing, comprising a front casing and a rear casing, houses a transmission, comprising an input shaft whereto power is transmitted from an engine; a pair of axles whereto left and right running wheels of a vehicle are affixed; a running spe... | 09/07/1999 |
| 5901605 | Power takeoff assembly and method of converting same to include selectively controlled multiple power takeoff shafts A vehicle transmission assembly includes a source of rotary power, a clutch connected to the power source and having an output power shaft, and a plurality of gears in substantial alignment. The gears include a first gear on the output power shaft meshed ... | 05/11/1999 |
| 5765646 | Combined control machine for an orchard Various types of working machines can be installed on a combined control machine car body as occasion demands, and the operation of a working machine can be automatically performed with the engine power of said combined control machine car body without a ... | 06/16/1998 |
| 5667330 | Quick-connect mechanism for releasably retaining a power take-off shaft within an output shaft hub A locking mechanism for releasably fixing an externally splined power take-off shaft to an output shaft of off-highway equipment such as a tractor. The output shaft has a hollow, internally splined hub portion adapted to axially receive the externally spl... | 09/16/1997 |
| 5046994 | Vehicle transmission assembly In a vehicle transmission assembly which includes a hydrostatic transmission (14) and mechanical transmission mechanism (21) for driving rear wheel axles (20) of the vehicle at a variable speed, a hydraulic pump (16) and hydraulic motor (17) of the hydros... | 09/10/1991 |
| 4938085 | Power transmission system in a tractor A power transmission system in a tractor having a travelling drive sub-system for driving wheels and a PTO drive sub-system for driving working machines. A transmission case is provided with a single input shaft connected to an engine, and the travelling ... | 07/03/1990 |
| 4867008 | Traveling transmission case A transmission formed of aluminum die casting which has disposed therein a differential gear and speed reduction gears. The case is provided at the outer surface thereof with a hydro-static transmission system. The transmission case is divided horizontall... | 09/19/1989 |
| 4850234 | Auxiliary drive apparatus A speed reduction mechanism comprises a drive member rotated by a rotary drive force of a drive source; a fixed member opposing to the drive member; a rotor disposed between the drive member and the fixed member and contacting the drive member and the fix... | 07/25/1989 |
| 4813785 | Mixing structure for paint colorant in a dispensing apparatus An apparatus for mixing a liquid colorant in a container. A flexible cable is rotated about its length to drive rotatable agitating structure in the container. Where a plurality of containers, each having agitating structure and an associated cable are us... | 03/21/1989 |
| 4760758 | Transmission system for vehicle having planetary gear type forward and backward drive switching apparatus A planetary gear type forward and backward drive switching apparatus, comprising a sun gear mounted on an input transmission shaft, a carrier mounting planetary gears meshing the sun gear and rotatable about the transmission shaft, a ring gear meshing the... | 08/02/1988 |
| 4727759 | Power transmission mechanism for a tractor A front and rear transmission casing are joined to form a single casing. Upper and lower input shafts are received and supported by the front casing. The lower input shaft drives a change speed gearing with a speed change shaft and a pinion shaft. The pin... | 03/01/1988 |
| 4709587 | Friction drive for automotive and truck accessories A friction drive arrangement for driving automotive and truck accessories from the automotive/truck engine comprising a drive wheel, with an outer rim surface, for mounting on an output shaft of the engine and one or more driven wheels for driving the acc... | 12/01/1987 |
| 4658662 | Transmission and PTO system for tractors and utility cycles A speed change transmission is shown in variation having an extremely wide range of selectively engageable speed drive ratios for use with garden tractors and utility cycles with tractor mode. The transmission also serves as a speed range transmission for... | 04/21/1987 |
| 4610174 | Transmission for a tractor A transmission for a tractor in which a forward-reverse change mechanism M3 is disposed between a first change speed mechanism M1 and a second change speed mechanism M2 and to the first change speed mechanism M1 a PTO countershaft 34 and a PTO shaft shaft... | 09/09/1986 |
| 4606429 | Vehicle drive system A vehicle having driving wheels both on the left and right sides of the chassis frame thereof. The vehicle has a power unit including an engine and a transmission system for transmitting the power from an output shaft of the engine to the driving wheels i... | 08/19/1986 |
| 4585084 | Agricultural tractor The tractor has four front wheels and four rear wheels. The wheels are arranged so that they all run in different tracks during the tractor's straight-ahead travel. The wheels are provided with low-pressure, low-profile tires. The front wheels are drivabl... | 04/29/1986 |
| 4525987 | Agricultural machine An agricultural machine to be pulled by a tractor and having working tools driven by outer driving sources comprises a chassis arranged to support the working tools, a beam unit arranged for connecting the chassis with a tractor and including a first beam... | 07/02/1985 |
| 4498349 | Front power take-off for tractors A front power take-off for tractors. A drive pinion shaft provided in a differential mechanism for driving the front wheels is positioned in the center of pivotal movements of a front axle housing a front working power out-put shaft and a front wheel driv... | 02/12/1985 |
| 4304141 | Tractor power take-off system In a tractor power take-off system in which first and second PTO shafts are disposed in the transmission case, the transmission case has at the bottom wall thereof an opening for taking off power to the second PTO shaft and there is disposed a PTO gear sp... | 12/08/1981 |
| 4215586 | Truck transmission with power take-off A two speed auxiliary truck transmission utilizes two counter shafts. Two power take-off shafts, which are double ended (i.e., each power take-off shaft extends forward and rearward) are meshed to the gears on the main shaft and counter shaft. In this way... | 08/05/1980 |
| 4196859 | Spreader control A material unloader having a conveyor and a distributing unit includes a control assembly operative from the tractor or towing vehicle by a single hydraulic control. A jaw clutch is provided for engaging and disengaging the distributing unit drive and the... | 04/08/1980 |
| 4061448 | Drive for the ignition distributor of an internal combustion engine An improved drive for the ignition distributor of an internal combustion engine of the type having a lubrication pump driven by its crankshaft. The pump has an internal gear driven by and coaxial with the crankshaft. An external gear has internal teeth an... | 12/06/1977 |
| 3991629 | Power take-off shaft assemblies A power take-off shaft assembly comprises a hollow drive shaft rotatable at one speed; a drive sleeve surrounding said shaft and rotatable simultaneously at another speed; a power take-off shaft with differently splined ends each adapted to fit within the... | 11/16/1976 |
| 3981158 | Disconnect coupling for drive shafts This invention relates to a disconnect coupling for drivingly connecting separate parts of a drive shaft, and finds particular application in helicopter tail rotor drive shafts. The coupling comprises components fixed respectively to the shaft parts and b... | 09/21/1976 |