...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 8161649 | Differential gear assembly housing The gear housing may be a housing to enclose a gear assembly of a land mobile vehicle. The gear housing may have an upper housing portion and a lower housing portion. The lower housing portion may have a wall reference position below a lowest surface structure of a ... | 04/24/2012 |
| 8037606 | Method of producing mechanism for converting rotational motion into linear motion A method for fabricating a rotational-to-linear motion conversion mechanism which can avoid a planetary shaft from being tilted with respect to a sun shaft when the conversion mechanism is assembled. The method includes fabricating a subassembly with the planetary s... | 10/18/2011 |
| 7954239 | Method of manufacturing a torque limiter device A manufacturing method that can stabilize an operation torque of a torque limiter device in a manufacturing stage is provided. The method of manufacturing the torque limiter device 1 includes an assembling step S1 of attaching a clutch disk 13 a... | 06/07/2011 |
| 7950151 | Method of making integral sun gear coupling A method of constructing an integral coupling system containing a sun gear is disclosed. An integral sun gear is provided that has a sun gear component and a connection shaft. A first straight flat inner edge is machined on a first diaphragm to use as a datum point,... | 05/31/2011 |
| 7818882 | Method of making a one-way drive device A one-way drive device is disclosed herein and includes a pocket plate assembly having a disc-shaped pocket plate and a notch plate assembly having a disc-shaped notch plate. The device also includes an axially extending, open-ended cylindrical shell for containing ... | 10/26/2010 |
| 7707721 | Modular transmission system In a method of manufacturing multiple transmission units with individually selectable gear ratios that vary from unit to unit, a gear pair having a desired transmission ratio is selected from a multiplicity of interchangeable gear pairs that includes both spiroplan ... | 05/04/2010 |
| 7402006 | Manufacturing method of gear device This method includes: a supporting process of supporting a worm wheel in a first supporting section of a supporting body; an engaging process of engaging a jig gear which corresponds to a worm with the worm wheel; a measuring process of measuring a distance between ... | 07/22/2008 |
| 7367914 | Differential housing support member The present invention discloses a differential housing and a method operable to form the differential housing. The method includes the step of disposing a member having an outer surface on a mandrel. The member in the exemplary embodiment of the invention is a ring ... | 05/06/2008 |
| 7316629 | Planetary gear apparatus A double pinion planetary gear unit includes a first sun gear, a second sun gear, a plurality of short pinions, a plurality of long pinions, a ring gear and a carrier. The carrier includes a first flange portion that supports an end side of the short pinions and an ... | 01/08/2008 |
| 7261664 | Differential mechanism for a vehicle and method of forming the same A differential mechanism includes a housing having a wall exposed to an open end and a pair of receptors defined in the wall. A lid is affixed to the open end forming an enclosure with the housing. The opposing gears are in driving engagement with one and the other ... | 08/28/2007 |
| 7258645 | Axle assembly with side gears having dual shaft retention features The drivetrain with multiple differentials includes a common side gear. The side gear has a cylindrical body with a central bore. Receiving members are on the bore to receive a shaft. An annular member is on the body with the bore extending through the annular membe... | 08/21/2007 |
| 7244211 | Differential and method of assembly thereof A differential including axle pinions and pinion gears and a body having two parts between which the pinions are mounted. The two parts of the body are provided with complementary guiding surfaces for guiding the two parts in adjustment relative to one another along... | 07/17/2007 |
| 7220207 | Differential apparatus The present invention relates to an improvement for a differential apparatus that transmits torque produced by a motor to two axle shafts. A motor output shaft portion is formed coaxially and integrally with a gear case. ... | 05/22/2007 |
| 7217217 | Torque transmission differential for motor vehicles The invention relates to a torque transmission differential for motor vehicles comprising a casing which is selectively rotated around an axis y–y′; a drive wheel axle with an axis Y–Y′; a gearing which is disposed inside the casing and which transmits the r... | 05/15/2007 |
| 7210366 | Full support mainshaft and fifth gear design A full support mainshaft and fifth gear design that solves the problem of fifth gear failure on NV4500 transmissions. The first embodiment comprises a sleeve that is installed over the smooth support surface of a factory mainshaft. The second embodiment is a mainsha... | 05/01/2007 |
| 7207110 | Differential housing with integrated ring gear A method is disclosed for making a differential housing having a ring gear integrally formed therein. The method includes the steps of forging a conical frustum from a steel rod; deforming the frustum between upper and lower die halves of a tool to produce a differe... | 04/24/2007 |
| 7174996 | Hydraulic fluid feeder Supplying fluids different in pressure from one end of a revolving shaft without providing a diagonal hole in the revolving shaft for supply holes for feeding hydraulic fluid and lubricating oil. The time for manufacturing and the cost of providing a hydraulic fluid... | 02/13/2007 |
| 7155827 | Method for verifying predetermined bearing preload of differential assembly module A rigid drive axle assembly includes a support beam member having a substantially flat central plate section, a differential assembly module secured to the central plate section through at least two threaded studs extending from the central plate section. The differ... | 01/02/2007 |
| 7155997 | Motor vehicle differential The invention concerns a motor vehicle differential comprising a case including perforations; differential pinion shafts, each differential pinion shaft having an end accommodated by a perforation; and a cap; wherein the differential pinion shafts are locked in tran... | 01/02/2007 |
| 7155824 | Method of manufacturing an automotive differential having an input pinion A method for fabricating an input pinion for an automotive differential that includes: providing a shaft; forging a pinion with a plurality of teeth such that each tooth is formed to at least a near-net size, forming a hole in the pinion, pressing an end of the shaf... | 01/02/2007 |
| 7143513 | Method of forming a housing for gear elements A drive for adjusting devices includes gear elements mounted in a gear housing which includes at least two plates that can be secured to each other by plug connectors. The connectors are also configured as supporting joints that absorb the forces of the gear element... | 12/05/2006 |
| 7134202 | Structure for transmitting power of a motorcycle engine, and a method of assembly of said structure A structure for transmitting the power of a motorcycle engine includes an intermediate shaft arranged between a crankshaft and an input shaft of a transmission, and a method for making the structure. The structure and the method have the objective of shortening the ... | 11/14/2006 |
| 7131201 | Coupling device and improved method of assembly thereof A coupling device (11) and method of assembly, the device being of the type including a plenum member (17) disposed at one axial end of the coupling housing (13,15), the method comprising configuring the plenum member (17) such that each ... | 11/07/2006 |
| 7101299 | Starter with planetary reduction gear device In a planetary reduction gear device of a starter, a planet carrier forms gear shafts and planetary gears are rotatably supported by the gear shafts through bearings. The planet carrier further forms waste shafts projecting in a direction same as that of the gear sh... | 09/05/2006 |
| 7021171 | Annulus gear and drive shell A method of producing a torque transmission between a driving member and a driven member including the steps of capturing an annular gear within the interior of a hollow cylindrical shell formed of a formable material which is caused to be flow formed around a porti... | 04/04/2006 |
| 6945898 | Differential mechanism for a vehicle A differential mechanism includes a housing portion having a generally annular wall with a generally annular inner surface. The annular wall defines an open end of the housing portion. The lid is affixed to the open end forming an enclosure with the housing portion.... | 09/20/2005 |
| 6941832 | Injection molded resin gear, injection molded resin rotating body, and injection molded article An injection molded resin gear 1 includes a rim 4, a hub 3 and a web 5 which connects the rim 4 to the hub 3. A plurality of ribs 7 for guiding a molten resin, which is injected from pin point gates 8, to the h... | 09/13/2005 |
| 6929578 | Planetary gear carrier assembly A planetary gear carrier assembly having an upgraded thrust bearing with an increased surface contact area and corresponding dynamic load rating capable of withstanding the axial thrust forces generated by engagement of the planetary gears in a General Motors 4L60, ... | 08/16/2005 |
| 6883235 | Cast integral ring gear and differential case An apparatus and method of forming a differential assembly is provided that includes the steps of providing a ring gear, which is preferably produced by a precision forging process. The differential case is cast about a portion of the ring gear to secure the ring ge... | 04/26/2005 |
| 6874231 | Method of manufacturing a rigid internal gear of a wave gear device A rigid internal gear 2 of the wave gear device is composed by integrating a tooth-forming ring 12 formed with internal teeth, and a main gear ring 11 into a single body. The tooth-forming ring 12 is manufactured from a ferrous or copper ... | 04/05/2005 |
| 6872161 | Modular gear system for pump A modular gear system for transmitting power from a motor to a device such as a pump which requires power to operate. The system includes a gearbox and first and second planetary gearset assemblies connectable between an output shaft of the motor and a drive shaft o... | 03/29/2005 |
| 6865809 | Method of preloading tapered roller bearings A method is provided for achieving a desired preload on tapered roller bearings which rotatably support a gear between first and second transmission housing members in the assembly of a transmission. The bottom of each pocket which supports a tapered roller bearing ... | 03/15/2005 |
| 6846261 | Planetary gearset with multi-layer coated sun gear A planetary gearset includes a sun gear member having a sun gear body made of a steel material and an outer periphery with a plurality of teeth formed thereon. Each of the sun gear teeth has at least one mating surface for engaging mating surfaces on complementary t... | 01/25/2005 |
| 6745471 | Bevel gear bearing support arrangement manufacturing method A method of manufacturing involves providing a sub-unit including a shaft and a bevel gear associated with the shaft, and also providing a first support member and a second support member. A first bearing is positioned between the sub-unit and first support member. ... | 06/08/2004 |
| 6726293 | Tracked mobile machine with star carrier roller and method of assembly Star carrier roller assemblies have been used in certain tracked mobile machines, such as those used in the timber industry, that must operate in cold weather and/or over rough terrain. Due to interaction of the star carrier roller assembly with a track chain assemb... | 04/27/2004 |
| 6629369 | Method for mounting a transmission unit A process for the assembling of a gear component having a gear housing which has a substantially cylindrical interior space for the reception of individual gear elements; at least two bar-form guide elements which, as viewed in an axial direction, extend ... | 10/07/2003 |
| 6551009 | Spline connection for limited access space and method of assembly and disassembly A spline connection is provided between a first part and a second part wherein a first set of internal splines is formed on an inner cylindrical surface of the first part and a second set of internal splines is formed on an inner cylindrical surface of th... | 04/22/2003 |
| 6532660 | Backlash adjuster with bevel gear face for adjustment with mating geared tool A bearing backlash adjuster for an axle assemby. A cylindrical body threadingly engages an inner surface of a housing wherein rotation of the cylindrical body causes longitudinal displacement relative to the housing. An opening is formed through the housi... | 03/18/2003 |
| 6530313 | Slide locking mechanism A threaded member projecting from a press slide includes a projection on its upper end. A motor raises and lowers the threaded member in tandem with a slide adjustment mechanism. A plate disposed on a lower surface of a press crown is moved to slidably en... | 03/11/2003 |
| 6508140 | Gear-motor closing-part drive for a motor vehicle and associated method for manufacturing the drive In a very simple production and assembly process, reliable stop absorption between a drive-side gear wheel (1) and a driven-side carrier (2) is obtained when there is a mutual relative movement between the gear wheel (1) and the carrier (2) that is caused... | 01/21/2003 |