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 |
| 6536224 | Frozen beverage machine A frozen beverage machine includes a process control block having a plurality of inlets for receiving ingredients and a plurality of outlets. A mixing block has a plurality of inlets connected to the process control block outlets such that ingredients flo... | 03/25/2003 |
| 6253579 | Valve hamper assembly A valve hamper assembly for a glassware machine having a camming surface and a movable follower surface engaging the camming surface. A movable valve is operatively connected to the follower surface. A movement device is operatively connected to the follo... | 07/03/2001 |
| 5881568 | Refrigerator A refrigerator having a freezing compartment, a fresh food compartment, and a damper for opening/closing a freezing compartment passage and a fresh food compartment passage through which a cooling air via an evaporator flows, including a freezing compartm... | 03/16/1999 |
| 5868320 | Centrally installed cleaning/washing system for buildings Apparatus including a building; and a system which includes a water line comprising a water supply line substantially permanently installed and plumbed inside the building for supplying water at a pressure in a first pressure range; a pump substantially p... | 02/09/1999 |
| 5771924 | Valve A safety valve having a valve body movable toward and from a valve seat with a spring bearing against a spring seat and pressing the valve body against the valve seat has a rotary knob on the housing having a portion engaging a boss on the valve body to s... | 06/30/1998 |
| 5749526 | Centrally installed cleaning/washing system for buildings A cleaning system which is centrally and permanently installed in homes or commercial buildings and is connected to the water line therein. The system includes a pump operably attached to the water line and one or more freeze-proof valves are connected to... | 05/12/1998 |
| 5725014 | Gas control valve A gas control valve includes a bore and a room formed in the upper portion and lower portion and includes a valve seat formed between the hole and the room, and includes an inlet and an outlet pathway. A plate is slidably engaged in the room and has two p... | 03/10/1998 |
| 5603432 | Dispenser valve A beverage dispenser as provided for use with a container having an adapter with a resealable valve, which is a ball valve, has a valve which includes an engaging mechanism, such as a pin, for mechanically opening the valve in the adapter. The dispenser v... | 02/18/1997 |
| 5348192 | Dispenser valve A beverage dispenser as provided for use with a container which has an adapter with a resealable valve, which is a ball valve. The dispenser has a valve which includes an engaging mechanism, such as a pin for mechanically opening the valve in the adapter.... | 09/20/1994 |
| 5197112 | Fixed volume PTC air heater with heat output adjusted by a damper controlling air flow over the PTC element An electric forced air heating device using PTC elements for heating and having a fixed volume of airflow established by a blower driven at a constant rate. A pair of parallel air paths are established in the device, with one air path having the PTC eleme... | 03/23/1993 |
| 5191774 | Refrigerating compartment temperature control device A refrigerator includes a refrigerating chamber, a damper for opening and closing a cooling air supply channel, and an actuator for displacing the damper. A spring biases the damper closed. The actuator includes a rotary knob which rotates a cam disk. Rot... | 03/09/1993 |
| 5029806 | Foot-controlled water faucet A foot-controlled water faucet for regulating the outflow of water from a water faucet by means of air pressure comprises a compressing bladder connected with an air bladder in the water faucet by a passageway, a valve block, a ring body and a knob associ... | 07/09/1991 |
| 4946135 | Structure of water tap A water tap for water flow control, which utilizes a handle to control the movement of a valve element via a pressure rod, wherein the obliquely leftward or rightward moving range of the handle determines the spirally upward or downward moving range of th... | 08/07/1990 |
| 4877560 | Carburetor and valve mechanism A carburetor comprising a main body portion defining a carburetor mixing passage having an air intake side and an engine outlet side, a fuel pump, a throttle shutter mounted within the carburetor mixing passage between the air intake side and the engine o... | 10/31/1989 |
| 4844127 | Actuating mechanism for a transmission control system An actuating mechanism for a hydraulic control system including a valve body having one or more valves slidably arranged therein. Each valve is movable along a linear path in a manner regulating fluid flow through the valve body as a function of the linea... | 07/04/1989 |
| 4804117 | Disposable syrup package having integral disposable valve assembly A disposable syrup package includes an integral disposable valve assembly. The valve assembly includes a conduit through the discharge wall of a container which is opened or closed by a cam associated with a rotatable plate. The conduit may be formed in a... | 02/14/1989 |
| 4741325 | Operating valve for a pressure cooker The operating valve for a domestic pressure cooker has a movable body provided with a cone-point valve pintle which rests on the nozzle for the discharge of steam from the pressure cooker. The movable valve body has a lateral steam discharge opening of di... | 05/03/1988 |
| 4696330 | Spill collector assembly for liquid storage vessels A receptacle for accumulating spilled liquids about the inlet pipe of a storage tank is slidably fitted within a stationary housing. The receptacle includes an outlet spout connected to the inlet pipe. A center pipe fits within the spout for connection to... | 09/29/1987 |
| 4684037 | Perfected mechanical control device for ball valve type valve systems An improved mechanical control device for ball valve type valve systems operable by one hand, in which actuation of the valve ball is caused by squeezing a pair of levers, one fixed lever rigidly attached to the valve housing, the other movable lever pivo... | 08/04/1987 |
| 4679711 | Multi-orifice zero cavity nozzle dispenser A valved device for dispensing multiple closely spaced streams of liquid from a plurality of dispensing orifices. The device includes selectively actuatable valve needles associated with each of the dispensing orifices for controlling liquid flow from the... | 07/14/1987 |
| 4648534 | Device for dispensing liquids The valve for dispensing liquids which contain or are free from gas, more especially drinks containing carbon dioxide, from containers, comprises a housing with a socket which can be fitted on to the container opening, a riser duct which opens into the so... | 03/10/1987 |
| 4565211 | Hydraulic manifold with automatic flow control An access fitting for a hydraulic system including a valve element shiftable to a sealing or blocking position within the hydraulic circuit upon a conduit being attached to the access fitting wherein the valve element automatically seals a portion of the ... | 01/21/1986 |
| 4544132 | Combination gladhand and shutoff valve A combination gladhand and shutoff valve for use in tractor and/or trailer applications has a gladhand body with an air inlet and an air outlet. A seal member is positioned at the air outlet and there is a chamber within the body which connects the inlet ... | 10/01/1985 |
| 4504038 | Valve actuator A valve operator having a piston or diaphragm and connected polygonal piston rod which supplies reciprocable motion to a key or follower which acts within a spiraled slot formed in a coupling member attached to a valve gate to rotate the valve gate to a d... | 03/12/1985 |
| 4279273 | Clutch retention feature of a hand control valve The present invention is an improved clutch retention feature of a hand control valve. The hand control valve has a rotatable control member and a stationary member. There is a rotatable plate or disc which interlocks with the rotatable hand control membe... | 07/21/1981 |
| 4177949 | Fog generating apparatus Disclosed is a fog generating apparatus having adjustable metering valve in which the liquid atomized at the nozzle of the apparatus is drawn past a valve opening of adjustable size and flows through the cooperating valve stem to a conduit leading to the ... | 12/11/1979 |
| 3937104 | Power train including a torque-pressure transducer An automatic transmission power train including an improved torque-pressure transducer incorporating dual concentric outer turbine and inner transducer shafts, secured together at their input ends, and having a regulating valve mounted in the center of th... | 02/10/1976 |
