Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6557276 | Earth-moving machine An earth-moving machine is provided with a first actuator cylinder, which can impart to a lifting arm oscillation around a corresponding pivoting shaft, and with a second actuator cylinder, which can maintain a loading unit in a pre-determined angular pos... | 05/06/2003 |
| 6382080 | Apparatus for synchronization of telescopic rams in hydraulic elevators An apparatus for synchronizing a telescopic ram in a hydraulic elevator in which two or more pistons and a cylinder are simultaneously extended from and retracted into a foot portion mounted at the bottom of an elevator shaft includes a connecting cable w... | 05/07/2002 |
| 6379120 | Variable-displacement compressor A swash plate 20 made of an aluminum-based material is allowed to be inclined in the axial direction of a rotary shaft 18 and to rotate integrally with the rotary shaft 18 due to the engagement between guide holes 251 formed in the support arms 25 made of... | 04/30/2002 |
| 6148713 | Elastomeric surface actuation system A system for deforming or actuating an elastomeric structure is described. he system includes a plurality of tubes joined to the elastomeric structure. The tubes extend in the direction of a desired strain to be applied to the elastomeric structure and are... | 11/21/2000 |
| 5809864 | Opposed piston engines An opposed piston engine (10) comprising upper (12) and lower (14) cylinders and opposed pairs of pistons (16, 18) slidable therein and interconnected by rocker pivots (24, 26). A crankshaft (56) coupled to the rocker pivots (24, 26) constrains the moveme... | 09/22/1998 |
| 5435232 | Multi-connecting rod reciprocating machine A reciprocating piston (2) without any skirt is stabilized throughout its reciprocating motion by two or more connecting rods (4) connected between parallel spaced apart small ends (10) and parallel spaced apart crankshafts (5).... | 07/25/1995 |
| 5142965 | Master cylinder piston retainer The master cylinder piston retaining member (90, 190) comprises either a flexible, ribbed bellows type member (190) or a nonflexible member (90) attached at one end of the master cylinder (10) in order to retain the primary piston (30) within the master c... | 09/01/1992 |
| 4970942 | Device designed for the control of a gearbox synchronized by an electronic calculator A device designed to actuate the positive clutches of gearbox sliding gears following synchronization of the respective pairs of gears. A cylinder mechanism is provided on each sliding plate of the gearbox, as well as solenoid valves which are controlled ... | 11/20/1990 |
| 4834761 | Robotic multiple-jointed digit control system This disclosure describes a mechanical hand constructed to simulate the range of motion of a human band. The mechanical hand provides a remote manipulator device capable of reproducing all of the motions of the human wrist, hand, fingers, and thumb in a c... | 05/30/1989 |
| 4796514 | Rotary/linear convertor A rotary/linear convertor which comprises a first member may be in the form of a piston (14, 15, 16, 17, 114, 115, 116, 117) and a guide which is preferably in the form of a cylinder (12, 112) the first member being arranged for linear movement within or ... | 01/10/1989 |
| 4738415 | Hinge line flight actuator A fluid-powered rotary actuator particularly well suited for use in operating an aircraft flight control surface. The body has a stationary body portion and a rotatable body portion with an elongated annular sleeve reciprocally and coaxially mounted withi... | 04/19/1988 |
| 4638723 | Reduced pressure control device for moving a movable member between three positions A housing (10, 12, 14) has first and second flexible membranes (32, 42) dividing it into two sealed chambers plus a third chamber from which the movable member (38) projects. Each membrane co-operates with a respective cup (40, 50) and return springs (54,... | 01/27/1987 |
| 4559866 | Crossed-bellows controller A crossed-bellows controller which includes four bellows arranged in cruciform. The bellows are surrounded by a movable baffle ring which serves as a baffle plate for a nozzle. A frame-shaped cage is provided within the baffle ring, with the cage being co... | 12/24/1985 |
| 4469207 | Gear change actuators A gear lever actuator is provided for remotely or automatically moving the gear lever of a gearbox connected to an engine to be tested. The gear lever actuator comprises a first actuator for moving the gear lever between a neutral plane and gear selecting... | 09/04/1984 |
| 4448389 | Operating device for a cylindrical gate The safety device includes a self-closing cylindrical gate which, in closed position, blocks the hydraulic conduit surrounding the hydraulic turbomachine; the gate is housed, in the open position, in a chamber including two components near the hydraulic c... | 05/15/1984 |
| 4434964 | Self-closing cylindrical gate for hydraulic turbo-machine The device is used to operate a cylindrical gate which is used to protect and/or seal a hydro-electric installation including hydraulic turbo-machines; a set of hydraulic servomotors are distributed above the circumference of the cylindrical gate and conn... | 03/06/1984 |
| 4285493 | Valve operator A fail-safe-open actuator for actuating valves and the like which comprises a pair of opposed cylinders joined to define piston chambers, the axes of which are generally perpendicular to a valve stem. Pistons in the cylinders are connected to the valve st... | 08/25/1981 |
| 4206900 | Valve operator An actuator for actuating valves and the like which comprises a pair of opposed cylinders, the axes of which are generally perpendicular to a valve stem. Pistons in the cylinders are connected to the valve stem by toggle links, the pistons being resilient... | 06/10/1980 |
| 4167199 | Timing device for pneumatic signals This invention relates to timing devices for pneumatic signals, of the kind comprising a pneumatic motor having gearing which is brought into coupled engagement with a timer when an input signal occurs so that a control member associated with the timer, w... | 09/11/1979 |
| 4139336 | Expansible chamber apparatus with pairs of cylindrical rollers An apparatus having an alternately expanding and contracting chamber comprises at least one pair of cylindrical rollers each having an exterior surface in continuous rolling engagement with the surface of the other roller of the pair, the rollers being ro... | 02/13/1979 |
| 4139207 | Double grip air chuck A fluid actuated chuck has two pairs of surfaces adaptable to engage a work piece with each of said pairs of surfaces being independently operable by the fluid. Such a chuck body includes means forming two pairs of surfaces carried and rotatably driven by... | 02/13/1979 |
| 4112826 | Variable displacement reciprocating piston machine Variable displacement reciprocating piston engine arrangements are disclosed wherein pistons drive a variable displacement oscillating rocker member connected with an oscillating lever that in turn drives a rotating shaft through a crank mechanism. The ro... | 09/12/1978 |
| 4102249 | Pneumatically driven devices A pneumatically driven device which in the exemplary form of the invention is an air tool driven by pistons. In the exemplary form there are two pistons having racks which drive the reciprocatable shoe through pinion gears. One piston drives in each direc... | 07/25/1978 |
| 4084485 | Driving mechanisms and housings for such mechanisms A driving mechanism for a vehicle wheel includes a housing and piston-cylinder assemblies pivoted to side plates of the housing. Each assembly communicates with hydraulic fluid under pressure and a reciprocating piston rod of each assembly drives a pinion... | 04/18/1978 |
| 3978784 | Calendar control system A calendar stack is provided with pneumatic actuators of the expansible bag or bellows type wherein a selected roll has the end bearings thereof carried by a pair of pivoted control arms, the position of a respective control arm being selectively controll... | 09/07/1976 |
