Quotables
"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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 |
| 7681486 | Arrangement in connection with an oscillator cylinder An arrangement in combination with an oscillating cylinder (1), whereby the arrangement includes a working valve (10) of cylinder (1) to transmit pressure medium into cylinder (1), impulse valves (5) by means of which, by working v... | 03/23/2010 |
| 7005757 | Pneumatic human power conversion system based on children's play When large numbers of children play in a playground, part of the power of their play could be usefully harnessed resulting in large energy storage. This stored energy can then be converted for basic, low-power, applications in the school such as lighting, communicat... | 02/28/2006 |
| 6662704 | Apparatus and method for generating power from a flowing liquid This invention provides an apparatus and a method for generating power from a flowing liquid. The apparatus has three main components. The first component is a control unit for selectively directing the flowing liquid to the second component, the power un... | 12/16/2003 |
| 6272968 | Control system for an oscillation cylinder A control system of a pneumatic oscillation cylinder (1) to produce the oscillating motion of a scraper (3) used in paper machines in particular. There is in the oscillation cylinder motion rod (18) motion stoppers (4), which in both wanted reversing poin... | 08/14/2001 |
| 5860794 | Double diaphragm pump with air valve block moving in a rectangular pattern An air operated double diaphragm pump is provided with an air valve assembly which allows the valve cup to move in a rectangular pattern.... | 01/19/1999 |
| 5551847 | Lost motion pilot valve for diaphragm pump A mechanical shift pilot valve is provided with lost motion response to accommodate slight piston reversals at travel limits to prevent a false shift signal related thereto.... | 09/03/1996 |
| 5476193 | Positive displacement, volumetric ratio beverage dispersing apparatus A beverage dispensing apparatus for dispensing through a nozzle a preestablished volume of a syrup and a preestablished volume of a soda to be intermixed within a nozzle prior to being dispensed into a collecting container such as a glass. The syrup side ... | 12/19/1995 |
| 5105720 | Oscillating piston controlled by piloted valve, piston position controls pilot valve A cylinder including a housing disposed between a head and a board, a body disposed in the housing and closely contacted with the head, a piston slidably disposed in the housing, a piston rod coupled to the piston, a valve including five rings being dispo... | 04/21/1992 |
| 4680930 | Hydraulic control circuit and valve assembly A hydraulic power and control system for operating a reciprocating hydraulic mechanism including pump means connected to the hydraulic mechanism, a continuous torque hydraulic motor, a direction control driven by the motor to sequentially direct hydraulic... | 07/21/1987 |
| 4534168 | Pump jack A pump jack having a walking beam oscillated in a vertical arc by a hydraulic actuating cylinder that receives pressurized hydraulic fluid from a variable displacement pump. The hydraulic actuating cylinder is controlled by a hydraulic valve having an ope... | 08/13/1985 |
| 4478560 | Fluid-operated reciprocating pump A fluid-operated reciprocating pump having a central housing, a pair of chamber housings attached to opposite sides of the central housing, and a pumping diaphragm in each chamber housing that separates an inner pressure chamber from an outer pressure cha... | 10/23/1984 |
| 4299545 | Hydraulic oil well pumping apparatus An oil well pump which uses a pair of vertical hydraulic pistons to raise a cross beam. The polish rod is secured to the cross beam. At the top of the stroke automatic limit switches reverse the hydraulic fluid flow to allow the polish rod to descend and ... | 11/10/1981 |
| 4240328 | Valve mechanism for a hydraulic expansible chamber motor A hydraulic valve mechanism for a hydraulic motor having a cylinder and a piston reciprocating therein, comprising a valve block having a valve face, a main and an auxiliary central exhaust ports, two main feed ports on opposite sides of the main exhaust ... | 12/23/1980 |
