Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7390181 | Rotating piston machine A rotary piston machine has a driving part which is driven by an electric motor and a driven part which are geared together and engage one another for the delivery of a medium, the driven part being put under load in the direction of the driving part and the driven ... | 06/24/2008 |
| 7275920 | Rotary piston machine A rotary piston machine, with a driving part and a driven part, which are geared together, is proposed, for which these parts 17 and 18 run on a common stationary main axle 8. ... | 10/02/2007 |
| 7188472 | Method and hydromachine for controlling a displacement The invention concerns a method and a hydromachine with a commutation device and with expanding and contracting pressure chambers passed by fluid and formed by displacement arrangements. With the method and the hydromachine, it is endeavoured to control a displaceme... | 03/13/2007 |
| 7144224 | Variable capacity rotary compressor A variable capacity rotary compressor is designed to prevent eccentric bushes from slipping during a compression operation, and thereby prevent noise from being generated and increase durability. The variable capacity rotary compressor includes a housing to define f... | 12/05/2006 |
| 7104764 | Variable capacity rotary compressor A variable capacity rotary compressor is designed to prevent eccentric bushes from slipping during a compression operation, thus preventing noise from being generated and increasing durability. The compressor includes a housing to define two compression chambers hav... | 09/12/2006 |
| 7081063 | Internal planetary gear mechanism An internal planetary gear mechanism reduces a load applied to tooth surfaces of an external gear and an internal gear, a sliding portion such as a bearing and the like. By setting the amount of eccentricity α of an eccentric part to be larger than a theoretical va... | 07/25/2006 |
| 7052258 | Trochoidal pump To reduce noise caused by pulsation generated when fluid is expelled, in a trochoidal pump comprising an inner rotor and outer rotor having trochoidal toothed shapes. [Means of Solution] The inner rotor 5 and outer rotor 6 having trochoidal toot... | 05/30/2006 |
| 7052257 | Internal gear pump The invention relates to an internal gear pump for delivering fuel in an internal combustion engine, with an internally toothed annular gear and an externally toothed pinion that cooperates with the annular gear to produce a pumping action. In order to increase both... | 05/30/2006 |
| 6676394 | Internal-gear pump having a pinion with radial play The invention relates to an internal-gear pump for pumping fuel in an internal combustion engine, having an internal-toothed annular gear and an external-toothed pinion that cooperates with the annular gear to generate a pumping action. To increase the pu... | 01/13/2004 |
| 6568930 | Internal gear pump having a radial adjustment An internal gear pump has a housing, a toothed ring provided with inner teeth, a bearing ring supporting the toothed ring in the housing rotatably about a rotary axis, a toothed gear provided with outer teeth and engaging with the toothed ring, the toothe... | 05/27/2003 |
| 6481991 | Trochoid gear type fuel pump Two inner gears are overlapped with each other through a partition wall and are eccentrically arranged at an inner peripheral side of an outer gear, and eccentric directions of both the inner gears are shifted from each other by 180° to the opposite side... | 11/19/2002 |
| 6142758 | Rotary positive displacement engine A rotary positive displacement engine includes one or more power rotors, which are acted upon by a pressurized charge of gas, such as steam, and an annular barrier rotor geared for synchronous rotation with the power rotors. The rotors rotate within inter... | 11/07/2000 |
| 6139290 | Method to seal a planetary rotor engine Methods of sealing a planetary rotor engine, and the resulting seals, are described which improve the engine's efficiency and solves each of three main problem areas. A first method and resulting dynamic seal for sealing the rotor face surfaces as they tr... | 10/31/2000 |
| 6126423 | Preloaded spring mount for crank pin/rotor bearing assembly Rotary fluid compressor comprises a stator housing and a crankshaft rotatable about an axis of rotation and having a crank pin offset relative to the axis of rotation. A rotor is disposed by a bearing assembly on the crank pin for orbiting motion about th... | 10/03/2000 |
| 6074189 | Filling member-less internal-gear machine A filling member-less internal-gear unit has a casing with a bearing ring which is accommodated movably in a bore in the casing transversely with respect to its axis but non-rotatably. An internally toothed annular gear is rotatably mounted in the bearing... | 06/13/2000 |
| 6027322 | Method and apparatus for adjusting the rotors of a rotary screw compressor A rotor adjusting apparatus for adjusting flank clearance between the lands of meshing first and second rotors in a positive displacement screw machine is disclosed which includes a base configured to mount proximate an end of the meshing first and second... | 02/22/2000 |
| 5611674 | Capacity modulated scroll machine A scroll-type machine is disclosed which is particularly well suited for use as a compressor in refrigeration and air conditioning systems and incorporates a unique arrangement for modulating the capacity thereof. In one group of embodiments the capacity ... | 03/18/1997 |
| 5236318 | Orbiting rotary compressor with adjustable eccentric An adjustable eccentric mechanism for an orbiting rotary compressor comprising an eccentric, disposed within an orbiting roller, pivotally engaging a crankshaft and locking means for locking the eccentric to the crankshaft in a manner permitting adjustmen... | 08/17/1993 |
| 5226798 | Gear ring pump for internal-combustion engines and automatic transmissions The invention proposes in gear ring pumps for reciprocating internal-combustion engines and/or automatic transmissions allowing the hollow gear to run in the hollow gear housing with a play which is large enough for the pronounced fluctuations of the radi... | 07/13/1993 |
| 5152683 | Double rotary piston positive displacement pump with variable offset transmission means A dual piston rotary pump (10) having a housing (12) equipped with two ports (13a, 13b) to accommodate fluid flow through the housing (12) and having two generally cylindrical chambers (14a, 14b) within which cylindrical pistons (16a, 16b) are disposed. T... | 10/06/1992 |
| 4948352 | Rotor unit with peripheral projections and clearances for centrifugal deflection A rotor unit comprises an inner rotor and an outer rotor having different number of teeth, with the inner and the outer rotor being mounted on eccentric shafts to be driven for rotation at different speeds. The volume efficiency is improved by producing a... | 08/14/1990 |
| 4927339 | Rotating scroll apparatus with axially biased scroll members In a co-rotating scroll apparatus wherein one scroll is a drive scroll and the other scroll is an idler scroll, an axial pressure balancing mechanism and means for discharge pressure balancing is disclosed. The drive scroll wrap is provided with an end pl... | 05/22/1990 |
| 4608001 | Scroll type fluid machine with angular adjustment means In a scroll type fluid machine wherein there are engaged stator scroll means and rotary scroll means in intermeshing relationship with each other, each having a spiral or scroll blade portion projecting in the axial direction from the lateral plate surfac... | 08/26/1986 |
| 4552517 | Scroll type fluid displacement apparatus and method of assembly A scroll type fluid displacement apparatus, a method of assembling the apparatus, and an adjustment member for use in the assembly method are disclosed. The apparatus includes an end plate through which a hole extends, and a bore formed in an end plate of... | 11/12/1985 |
| 4082484 | Scroll-type apparatus with fixed throw crank drive mechanism A positive fluid displacement scroll apparatus (compressor or expander) wherein the scroll members run with a small clearance between the wrap side flanks, thus essentially eliminating wearing of the wraps. When efficient radial sealing is attained, very ... | 04/04/1978 |
