Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7380767 | Valve A valve comprises a housing (1) having an inlet (4) and an outlet (5), and a pressure sensing port (8). A piston (6) slides in a part (3) of the housing (1) in response to a difference between a first fluid pressure a... | 06/03/2008 |
| 7302969 | Valve device for use with fuel cells A first valve body is disposed in a first opening defined in a valve housing, and a second valve body is disposed in a second opening defined in the valve housing. The first valve body is fastened to a first shaft by screws, and the second valve body is fastened to ... | 12/04/2007 |
| 7219577 | Hand wheel, especially for initiating a rotational movement in the holder of a roller file In order to increase the grip of a hand wheel (4) which is especially intended for a roller file, said hand wheel consists of a base body (6), an outer shell (9) and a rubber-elastic insert (12) disposed between the base body (6) a... | 05/22/2007 |
| 7213424 | Rotation restricted locking apparatus and method The present disclosure relates to preventing rotation of a barrel lock when opened by a key. At least one example embodiment includes a rotationally actuated barrel lock for securing electric meter boxes and the like, and a spring loaded clip for mounting inside the... | 05/08/2007 |
| 7207198 | Valve lockout assembly A lockout assembly suitable for use with a valve having a handle rotatable between an open position and a closed position includes a lock arm which supports a clamping mechanism. In one aspect of the invention, the lock arm includes a longitudinal slot having slot e... | 04/24/2007 |
| 7178786 | Stem construction for rotatable valve body A valve stem construction for a manipulable valve member used to control fluid flow through a valve. The valve stem extends externally of the valve housing for engagement by a valve handle used to manipulate the valve member between open and closed positions. The va... | 02/20/2007 |
| 7174958 | Drill string member A drill-string member includes at least one grooved portion on an outer surface thereof. A pair of axially spaced-apart grooved portions are typically provided, with two such pairs axially spaced along the longitudinal length of the member. A plurality of grooves ar... | 02/13/2007 |
| 7136221 | Microscope with a handle and/or hand-grip for a microscope The invention relates to a hand-grip with a grip part which can be detachably fastened on a microscope housing, the mounting and dismounting being possible with a single-handed movement with the gripping hand. The hand-grip is fashioned and positioned such that it p... | 11/14/2006 |
| 7117884 | Valve locking device A valve locking device comprising an intermediate member (18) mountable between a valve body and valve actuator and securable to said valve body and/or actuator; a stem attachment member (20) attachable to and rotatable with a valve stem (14) an... | 10/10/2006 |
| 7100888 | Interlocking control handle An interlocking control valve which can be used to control the flow of fluids such as water and gas. The control valve features a push button on the end of a handle which permits the interlocking valve to engage the valve stem when the push button is pressed. A fixe... | 09/05/2006 |
| 7055794 | Air suction valve for storage bag An air suction valve for storage bag includes a body, a flat valve, a control knob and a lid; the body containing an air duct, a port below the air duct to be closed by the plate valve; the control knob being provided on the plate valve to engage longitudinal displa... | 06/06/2006 |
| 6997431 | Childproof valve for swimming pool Disclosed herein is a childproof valve for a swimming pool. In one embodiment, the valve may include a valve body having an inlet and an outlet and a flow-passage extending therebetween, a plunger movable within the valve body between closed and open positions to ei... | 02/14/2006 |
| 6976490 | Therapeutic single dose gas administration system A system (A) for providing single continuous dose of a gaseous heliox mixture to a patient with breathing difficulty includes a device (1) providing a constant and continuous flow of the heliox mixture, and a gas storage tank (2) for the mixture. A flo... | 12/20/2005 |
| 6962319 | Safety switch for a water dispenser A safety switch for a water dispenser includes a sealing ring movably received in the channel to alternatively block communication between the inlet and the outlet, a guiding rod securely received in the sealing ring and having a first spring compressibly mounted ar... | 11/08/2005 |
| 6938874 | Spanner for a ball valve A ball valve has a body, a stem engaging a ball closing component having a main flow hole and auxiliary flow holes, and a spanner having shaft body and a handle. The shaft body has a base with a seating hole and a latch with an elastic pressure element located slida... | 09/06/2005 |
| 6926034 | Hydraulic spool lock and method of use A hydraulic spool lock with a hydraulic spool housing, first and second hydraulic spools mounted within the hydraulic spool housing for independent selective movement with respect to the hydraulic spool housing, and a lock plunger movable mounted to the hydraulic sp... | 08/09/2005 |
| 6920894 | Valve security device A valve security device for releasably securing a fluid flow valve in an inoperable position including an inner body adapted to be disposed about the valve actuator such that rotation of the inner body effects corresponding rotation of the actuator to open and close... | 07/26/2005 |
| 6918402 | Flow control apparatus The present invention provides a flow control apparatus and method. In accordance with the present invention, the flow control apparatus comprises a thermostat that automatically actuates valve to enable water to flow through the valve when the temperature of the ai... | 07/19/2005 |
| 6918902 | Irrigation and suction valve and method therefor The in-line hand operated valve controls the flow of at least the irrigation fluid or suction to a surgical site. First and second sources provide fluid and suction to the valve. Valve body source ports communicate with the source lines and a delivery port communica... | 07/19/2005 |
| 6899120 | Yard hydrant A yard hydrant has an elongated wet pipe with a plunger that seals against the inside of a well casing. Lifting a pivoting handle at the top of the wet pipe lowers the wet pipe which opens a normally closed supply valve. Pressurized water can then flow up the wet pi... | 05/31/2005 |
| 6837264 | Toilet fill valve with valve lock Various toilet valves and methods are described that provide for locking of the toilet filled in a closed state. In one embodiment, a toilet fill valve is provided having an actuating arm. The toilet fill valve is closed when the actuating arm is disposed in a first... | 01/04/2005 |
| 6832623 | Gas meter valve and method Disclosed is a gas meter valve for connection to an outlet of a gas meter and a method for its use. The gas meter valve comprises a valve inlet coupleable to the meter outlet, a valve outlet coupleable to piping for supplying gas to a customer and a valve body coupl... | 12/21/2004 |
| 6651952 | Two position rotary actuator incorporating DC solenoid A method and apparatus for controlling a ventilation damper unit utilizing a direct coupled two-position rotary damper actuator with a DC solenoid is disclosed. The actuator acts to rotate the output coupling, and in turn, the damper shaft to open the dam... | 11/25/2003 |
| 6648009 | Tamper-proof ball valve A tamper-resistant by-pass valve prevents an unauthorized user from tampering with the valve when it is in the closed position to block gas flow to a meter being replaced or repaired.... | 11/18/2003 |
| 6644512 | Faucet for a drinking-water dispenser A faucet for a water dispenser has a seat secured on a front housing. The seat has at least one nozzle formed therein. At least one button is provided above the seat to control the nozzle's on/off modes when a user presses the button inwards. The button h... | 11/11/2003 |
| 6598850 | Butterfly valve locking apparatus A locking device for a butterfly type valve is provided with an actuating shaft extending through a bore provided in a conduit in which the valve is located; the inner end of the shaft carries a locking arm that is movable upon rotation of the shaft betwe... | 07/29/2003 |
| 6276662 | Valve or tap with blocking device for the stopper The invention concerns a valve or tap for fluids, with a stopper that rotates controlled by a control rod equipped with a throttle or grip lever fixed to said rod by means of a fastening screw. The throttle or grip lever has at least one blocking notch (1... | 08/21/2001 |
| 6260819 | Locking valve The invention is a valve that releasably locks the valve in both the open position and the closed position. The valve has a valve body, a valve element, a handle, and a lock-out member that cooperates with the handle and the valve body to lock the handle ... | 07/17/2001 |
| 6206339 | Rotary fuel filler valve actuator A rotary valve actuator for actuating a valve pivotally disposed in a housing and movable between first and second positions. The actuator includes an actuator member coupled to the valve, a resilient arm coupled to one of the housing or the actuator memb... | 03/27/2001 |
| 6086045 | Tap with safety mechanism A tap attached to one end of a water pipe or a connecting pipe of a water dispenser, and controlling the flow of water or liquid by opening and closing an outlet by the operation of a handle actuated by the leverage, the tap including a body having a shaf... | 07/11/2000 |
| 6029686 | Thermally responsive valve A freeze protection plug has latching balls engageable bayonet-fashion with grooves in a fitting. The balls are normally held in engagement with the grooves by a cam, but move inward to release the plug from the fitting when the cam is moved by a thermal ... | 02/29/2000 |
| 5950982 | Faucet safety stop A new FAUCET SAFETY STOP for preventing a user, especially a child, from turning a water faucet beyond a predetermined point. The inventive device includes a clip member having a pair of spaced apart arms, and a mid-portion connecting the arms together. T... | 09/14/1999 |
| 5887850 | Spring loaded valve handle A unitary handle structure to be secured to the shaft of the valve and cooperate with the stops on the body to delimit and lock the valve element in its open and closed positions. The handle structure includes a socket portion fixed to the stem of the val... | 03/30/1999 |
| 5839304 | Locking device for a parking brake A locking device for a parking brake on a bus having air brakes prevents accidental release of the parking brake when a sensing switch indicates that the bus should not move (e.g., when the driver is absent from the driver's seat, or a passenger-access do... | 11/24/1998 |
| 5772177 | Valve latching device for single handed operation An improved latch mechanism for a fluid flow control valve. The latch mechanism having a latch body, a spring, a plunger and a thumb release lever for disengagement of the plunger. The latch mechanism is attached to a valve handle which controls the fluid... | 06/30/1998 |
| 5762098 | Fluid mixing device, particularly for industrial inks or paints An automatic fluid mixing device wherein a cylindrical supporting structure supports a first number of valves angularly spaced along a first circumference, and a second number of valves angularly spaced along a second circumference concentric with and ins... | 06/09/1998 |
| 5762317 | Child resistant valve assembly A child resistant valve assembly includes a valve with a movable valve stem to regulate the flow of hot water from a bottled water cooler system. An actuator cap is mounted to the movable valve stem, and a hood assembly covers the actuator cap. The hood a... | 06/09/1998 |
| 5741003 | Child-resistant handle A child-resistant handle to be mounted to a valve stem to which is affixed a cogwheel adapter by a shoulder screw. The shoulder screw rotatably mounts the freely rotatable handle to the valve stem. The handle has an inverted cup shape that extends over an... | 04/21/1998 |
| 5678606 | Water collection and distribution box and method related thereto A water collection and distribution unit is provided for collecting a water stream and dividing the stream into a discharge stream and an outlet stream. The outlet stream has a predetermined desired flow rate. The unit has a box for receiving water, and t... | 10/21/1997 |
| 5653420 | Locking control valve handle A valve handle is provided with a hand rotated valve skirt containing a notch which in one position permits valve operation when the notch is aligned with the valve and in a second spring biased position the skirt interferes with the valve body to prevent... | 08/05/1997 |
