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Class 74/467 - Lubrication


Subclass of Class 74 - Machine element or mechanism
Definition: Gears specifically modified for purposes of lubrication.
No. of patents: 356
Last issue date: 05/08/2012


                9  
NumberTitleIssue Date
4271717Axle assemblies
An axle assembly with crown-wheel and pinion gearing and lubrication of the pinion bearings by two passages having entrances disposed close to the periphery of a rotary element, to remove lubricant from a film entrained by the element from a supply of lub...
06/09/1981
4261219Lubrication device for differential gear unit
A power transmission unit comprises a trans-axle casing provided with an upright partition wall to subdivide the interior of the casing into front and rear chambers and having a cover plate for sealingly closing the forward open end of the front chamber, ...
04/14/1981
4244242Lubrication system for differential gear unit
A power transmission unit comprises a trans-axle casing provided therein with an upright partition wall for subdividing the interior of the casing into front and rear chambers and having a cover plate for closing in a fluid tight manner the forward open e...
01/13/1981
4242923Lubrication in power transmission unit
A power transmission unit comprises a change-speed gearing having a mainshaft with change-speed gears and a countershaft with counter gears for selectively driving the respective change-speed gears, and a drive pinion shaft coaxially connected to the main...
01/06/1981
4240524Oil flow control device for power transmissions
A power transmission unit comprises a transmission casing shaped to conform with a change-speed gearing contained therein, the change-speed gearing including an output mainshaft rotatably supported from the rear end wall of the casing, and an extension ho...
12/23/1980
4237750Planetary gear reduction system
A planetary gear reduction system, compact in size, high in the ratio of speed reduction and improved in durability as well as easiness for assemblage and adjustment, which essentially comprises planet gear mechanisms disposed in multiple stages and in se...
12/09/1980
4236421Meshing mechanism for intermittent transmission
In an intermittent transmission meshing mechanism comprising a toothed drive member having a toothed portion and a circular outer periphery continuous therewith and a toothed driven member having a toothed portion and arcuate locking faces formed on the o...
12/02/1980
4235127Traction surface cooling system for torque transmissions
A traction drive torque transmission having a lubricant recirculating system by which a liquid lubricant is passed into and out of heat transfer contact with frictionally engaged rolling surfaces and in which transfer of thermal energy from the rolling su...
11/25/1980
4235307Remote transmission lubrication system
A tractor transmission is provided with a clutch housing containing an oil reservoir vented to the main transmission which is vented to atmosphere. A transfer pump is disposed in the clutch housing to pump an oil-air mixture from the reservoir to the main...
11/25/1980
4231266Lubricating device for power transmission unit
In a power transmission unit, a protrusion is provided on an inner wall of the transmission housing to be splashed with lubricating oil pumped up by rotation of an idler gear on the idler shaft, and an oil receiver is arranged under the protrusion to rece...
11/04/1980
4227427Drive unit assembly
A two speed differential axle is disclosed having a lubricant containing housing which encloses engageable differential and planetary gear assemblies. An input shaft extends into the housing and has a pinion gear rigidly affixed to an inner portion thereo...
10/14/1980
4222445Reduction unit of drilling motor
In a reduction unit of a drilling motor comprising a casing, input and output shafts installed on supports, a reduction gear including sun and crown wheels, pinion carriers and planet pinions with supports located in a circular space between the wheels, a...
09/16/1980
4222283Manual transmission lubrication system
A transmission having a gravity feed and centrifugal pressure lubricating system. Rotating drive and output gearing throws oil to a primary collector for gravity feed down in a first passage in the housing to a through-bore in the output shaft and for fee...
09/16/1980
4221279Centrifugal lubrication system for transmission pocket bearing
A centrifugal lubrication system provides lubrication oil flow to a transmission pocket bearing. Splash and spray lubrication oil is directed from the transmission casing to a collector region along a shaft adjacent the pocket bearing. As the shaft rotate...
09/09/1980
4217794Lubricating device for final drive gearing of power transmission unit
A final drive gearing of a power transmission unit comprises a drive pinion shaft supported by a pair of axially spaced bearings carried on an upright partition wall of a trans-axle casing and a drive pinion integral with the drive pinion shaft and in mes...
08/19/1980
4201935Method and apparatus for controlling the feed of machine tools
An improved feed for a D.C. motor driven feed including a feed screw and nut which moves the table of a machine tool through predetermined positions in accordance with orders to change the rate of feed. The improved feed includes a power damping circuit, ...
05/06/1980
4190116Mine roof bolter
A mine roof bolter is described which has a rotary drill head with: (1) sufficient rotative mass that breakage of bits and steel is minimized, (2) a dual drive assembly that provides balanced side thrusts against the bearings so that wear thereof is minim...
02/26/1980
4175643Lubricating system for power transmitting apparatus
A lubricating system is for a forward bearing and a rear bearing of an input shaft of an interaxle differential. The interaxle differential includes a housing having an oil sump therein and a number of elements thereof capable of rotating within the housi...
11/27/1979
4157045Lubricating system for an oil seal in a differential gear
A lubricating system for an oil seal in a differential gear comprising a differential carrier having a pair of bosses, a pair of spacers, a pair of differential cases and a ring gear therein and a pair of side shafts penetrating both sides of the differen...
06/05/1979
4148229Overdrive device for automatic transmission
An overdrive device including an input shaft coupled to a fluid-coupling type torque converter, an output shaft coupled to a plurality of auxiliary transmissions each having one or more reduction gear ratios, and planet pinions which are supported by pini...
04/10/1979
4148227Worm and worm-rack with hydrostatic lubrication
A worm and worm-rack combination with hydrostatic lubrication therebetween. The teeth of the worm and the worm-rack have a trapezoidal cross-section and lubricating oil is supplied through openings in the toothed flanks. The half angle formed between each...
04/10/1979
4136582Shaft and bore combination
The present application discloses structure which produces area contact in place of point or line contact between a cylindrical shaft and a cylindrical bore. When the area of contact is increased, the unit pressure is reduced which results in less wear an...
01/30/1979
4116003Multi-speed hydraulic drive torque converter
The trans-clutch torque converter of the invention includes a pair of parallel input and output shafts having pairs of interengaging input and output gears on the shafts together with pairs of idler or transfer gears positioned on the shafts between the o...
09/26/1978
4108018Gear drive with single-helix gears
A gear drive with single-helix gears in which a pair of such gears mesh with each other and are formed along the length thereof with one or more grooves of a depth equal to or not substantially greater than the tooth height and provided with lubricant-str...
08/22/1978
4090748Device for lubricating rear bush in extension housing of automotive transmission
The oil grooves which are formed in the bore of a hollow rear bushing that is disposed adjacent to the rear end of an extension housing of an automotive transmission are provided in such a pattern that upon rotation of the output shaft or sleeve journalle...
05/23/1978
4079275Oil-cooled motor
This invention provides an oil-cooled motor, the housing of the motor comprising an oil storage chamber and at least one passage communicating with the storage chamber. The storage chamber is connected with one end of the armature shaft of the motor, whil...
03/14/1978
4072067Planetary gearing with closed housing
Planetary gearing comprising a stationary support, an outer housing rotatably suspended from the support, the housing including internal gear teeth and being adapted to contain a lubricant, the stationary support including an inner portion extending withi...
02/07/1978
4068740Gear pump assembly
A gear train is housed in a gear box having upper and lower plates in or on which gear-shaft bearings are mounted. One of the gears functions as a centrifugal gear pump for projecting lubricating oil from a sump in the tank angularly upwardly through open...
01/17/1978
4018097Axle lubrication system
An axle lubrication system is provided utilizing an especially configured differential carrier housing adapted to be mounted to an axle housing with the axle housing oriented either upside-down or right-side-up. In either orientation, the lubrication syst...
04/19/1977
4000664Mechanical actuator
A mechanical actuator having a housing in which a gear-nut assembly is rotatably mounted on bearings to be driven by a drive shaft extending into the housing through a sealed aperture. The gear-nut assembly includes a gear component engaging the drive sha...
01/04/1977
3995727Automatic lubricant flow increase valve
A lubricant valve for use in a control system for an automatic transmission including a shift valve adapted to change ratio in the transmission mechanism by exhausting a first friction device of pressure and engaging a second friction device with pressure...
12/07/1976
3995509Rotating hinge pin for spring loaded gear box
A turret assembly is disclosed which is journaled in a bull ring and driven by a drive box which is mounted on a hinge pivot shaft and which shaft is rotated in response to rotation of the turret with respect to the bull ring....
12/07/1976
3990539Lubrication means for swing gear drive
An excavator comprises an upper unit rotatably mounted on an undercarriage by selectively driving a swing pinion against a reaction ring gear secured to the undercarriage. A semi-cylindrical grease retainer is secured to the upper unit to substantially en...
11/09/1976
3987873Brake mechanism
A brake mechanism, applicable to the braking of trailer vehicles, has an electro-magnetic arrangement which is disposed between the inner ends of coaxial wheel supporting shaft units to selectively and individually control the rotation thereof. Each shaft...
10/26/1976
3966020Differential lubrication system
A differential having lubrication passages including flats on the shafts of the differential spider extending from externally of the differential casing through the differential pinion gears to convey lubrication to the pinion gear and shaft interface for...
06/29/1976
3931748Adjustable gear enclosure for mixer pinion and bull gears
A portable material treating device having conventional power, supporting, and treating means is provided with a novel sealed enclosure for the gearing unit between the power source and the driven treating device. The sealed enclosure for the gearing unit...
01/13/1976
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