Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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 |
| 7739978 | Rotatable shaft position indicator In some embodiments, a rotary shaft position indicating and display apparatus for use with a device having a rotatable shaft may include one or more of the following features: (a) a housing having a base with a cover secured to said base and defining a hollow sealed... | 06/22/2010 |
| 7314021 | Operation indicator An operation indicator is provided to indicate the open/closed status of device, e.g. a circuit interrupter operable between open and closed operating positions. The operation indicator includes two indicator members having cooperating interleaved or interlaced cons... | 01/01/2008 |
| 7185672 | Valve travel indicator A valve travel indicator is described. An indicator portion indicates a location on a valve indicator scale. A retaining portion is fixedly coupled to the indicator portion and movably coupled to a valve stem. The retaining portion fixedly couples the indicator port... | 03/06/2007 |
| 7182855 | Fuel filter with valve indicator A fuel filter includes a first filter chamber, a second filter chamber and a valve assembly disposed between the first and second filter chambers. The valve assembly includes a valve casing with a valve head connected to a flag indicator slidably disposed within the... | 02/27/2007 |
| 7156217 | Motion transmitting apparatus A motion transmitting apparatus wherein an electric motor, an engine or another prime mover rotates an axially fixed first part relative to a coaxial axially movable non-rotatable second part. The structure which serves to move the second part axially in response to... | 01/02/2007 |
| 7069948 | Valve travel indicator A valve travel indicator is described. An indicator portion indicates a location on a valve indicator scale. A retaining portion is fixedly coupled to the indicator portion and movably coupled to a valve stem. The retaining portion fixedly couples the indicator port... | 07/04/2006 |
| 7032549 | Valve lift sensor A valve lift sensor detects the position of an engine valve. The valve lift sensor includes a movable target carried on an engine valve and a stationary coil carried within an engine valve assembly. A signal generator energizes the coil with an oscillating voltage t... | 04/25/2006 |
| 6957693 | Heat exchanger thermal indicator Thermal indictors of this invention are constructed for use with a heat exchanger generally comprising hot and cold side passages for accommodating a desired heat transfer therebetween. The thermal indicator is disposed at least partially within the heat exchanger a... | 10/25/2005 |
| 6920896 | Visual position indicator for valves with linear moving valve stem The present invention relates to a visual valve indicator comprised of a handle assembly with peripheral sidewalls attached to a linear moving valve stem for opening and closing of the valve and a grommet stratified into one or more color bands attached to and surro... | 07/26/2005 |
| 6655316 | Visual position indicator for valves with linear moving valve stem The present invention relates to a visual valve indicator comprised of a handle assembly with peripheral sidewalls attached to a linear moving valve stem for opening and closing of the valve and a grommet stratified into one or more color bands attached t... | 12/02/2003 |
| 6470609 | Method and apparatus for promoting the sale of a product A method and apparatus for promoting the sale of a showerhead enables a prospective customer to evaluate the showerhead in a relaxed setting and separate from competing showerheads, while at the same time providing in a fixed, permanent, readily viewed lo... | 10/29/2002 |
| 6422420 | Compressed gas safety inflator for life vests, life rafts and the like A gas cartridge introduced into the housing of the invention is punctured by a pin moved by an arm designed to show through a series of windows whether the cartridge is full or empty. A pulling on a tab rotates the arm to action, in puncturing the cartrid... | 07/23/2002 |
| 6386230 | Position sensing system for butterfly valves A butterfly valve comprises a valve housing, a valve member mounted within the valve housing, and a valve stem supporting the valve member within the valve housing for rotation between open and closed positions. At least one magnet is mounted on the valve... | 05/14/2002 |
| 6343619 | Two piece shower faucet gauge A two part faucet gauge (20), having a gauge strip (22) with strip indicia (24) and a gauge cover (26) with cover indicia (28) is utilized to reduce the time and water wasted in adjusting water to a desired pressure and temperature. The gauge strip (22) i... | 02/05/2002 |
| 6276393 | Position sensing system for butterfly valves A butterfly valve comprises a valve housing, a valve member mounted within the valve housing, and a valve stem supporting the valve member within the valve housing for rotation between open and closed positions. At least one magnet is mounted on the valve... | 08/21/2001 |
| 6257276 | Freely programmable position indicating apparatus A freely programmable position indicating apparatus, in particular for valves, includes a movable or rotatable adjusting member, a position detection unit operatively connected to the adjusting member for continuously generating an analog output signal co... | 07/10/2001 |
| 6182690 | Position sensing system for butterfly valves A butterfly valve comprises a valve housing, a valve member mounted within the valve housing, and a valve stem supporting the valve member within the valve housing for rotation between open and closed positions. At least one magnet is mounted on the valve... | 02/06/2001 |
| 6145537 | Valve position indicator A valve position indicator for visually indicating the open or closed position of a valve from a distance and from various angles includes a support; a hollow, elongated member rotatably mounted on the support; and an indicator member having indicia there... | 11/14/2000 |
| 6112619 | Hand wheel cover with indicator A hand wheel cover for a valve on a gas bottle or cylinder provides a better grip for the hand wheel and also has a larger area for indicating opening and closing rotational directions. In another embodiment an indicator hand wheel cover has an indicator ... | 09/05/2000 |
| 6052929 | Mnemonic marking system for fluid valves and the like A mnemonic temperature marking system for fluid valves, especially of the type used in bathing vessels such as bathtubs and showers. Any user can easily, quickly, and accurately set the valve so that water of the desired temperature will flow when the val... | 04/25/2000 |
| 6044791 | Apparatus for determining the position of a rotary valve A position indicator for a rotary valve actuator has a stator of one color mountable on a housing for the actuator and a rotor of a contrasting color which is connected to the actuator output shaft for rotation with it. The rotor has inner and outer coaxi... | 04/04/2000 |
| 6015096 | Speed controller with scales A speed controller with scales according to the invention is used to adjust the amount of an air flow thereby to control the amount of a chemical liquid sprayed. The speed controller includes a housing, a controller body and a transparent tube. The contro... | 01/18/2000 |
| 5983826 | Fluid control valve having mechanical pressure indicator A mechanical pressure gauge indicator for showing a position of a multi-turn non-rising water valve stem is disclosed. The mechanical pressure gauge indicator uses 180 degrees of turning motion to indicate various approximations of pressure downstream of ... | 11/16/1999 |
| 5975131 | Tank valve and opening sensor A device for providing remote indication of the opening of a weighted pallet type tank vent in which a permanent magnet is attached to the end of the pallet guide shaft distal to the pallet. A magnetic induction sensor is secured to the outside of the sha... | 11/02/1999 |
| 5890450 | Linear stroke valve position indicator The present invention is directed to a valve position indicator for indicating an open or closed position of a valve having a valve stem, the valve position indicator comprising a body adapted to be mounted to a subsea xmas tree structure, a traveling blo... | 04/06/1999 |
| 5856743 | Position-determining apparatus An apparatus is provided for determining the position of a shaft that is rotatably displaceable about a longitudinal axis. The apparatus includes a magnet, first and second magnet-detecting devices that are arranged adjacent the shaft, and a third magnet-... | 01/05/1999 |
| 5769118 | Position indicating valve wheel A position indicating valve wheel (1) having a digit ring (28) in rotating communication with an intermediate wheel (35), both of which are rotatably mounted in a wheel house (1). A driver (51) secured to a flange (48) of a decimal ring (40) which is also... | 06/23/1998 |
| 5738140 | Adjustable height extension stem and valve box assembly An adjustable-height extension stem and valve box assembly is provided for use with buried valves that is lightweight, readily adjustable to a large range of heights, and is capable of absorbing loads and impacts such that the loads and impacts are substa... | 04/14/1998 |
| 5680878 | Control valve response measurement device A method and apparatus employs a measurement device placed on an automatic control valve to test the speed of response of the control valve and any lost motion created by or within any mechanical linkage or connection used to automatically actuate the val... | 10/28/1997 |
| 5664601 | Relief valve with abnormal pressure indicator means A relief valve with abnormal pressure indicator means, including a valve rod with a valve flap moved in a casing to close/open the passage, a cap mounted on the valve rod outside the casing, and an indicator coupled to the valve rod and having a display f... | 09/09/1997 |
| 5642793 | Indicator device for signalling that the wear limit has been reached for servo-operated clutches An indicator device for signalling that the wear limit has been reached for servo-operated clutches, particularly for motor vehicles. A servo housing comprises a servo piston, which can be moved forward and backward therein for disengaging and engaging th... | 07/01/1997 |
| 5643030 | Gas cartridge safety inflator apparatus A gas cartridge introduced into the housing of the invention is punctured by a pin moved by an arm designed to show through a window whether the cartridge is full or empty. A pulling on a tab rotates the arm to action, in puncturing the cartridge and a sp... | 07/01/1997 |
| 5605176 | Position indicator for on/off valves A valve position indicator for on/off valves includes a card having red and green sectors journalled in a housing, and gravity biased to remain stationary during rotation of the housing about a non-vertical axis. A cover of the housing overlies the card a... | 02/25/1997 |
| 5564470 | Valve assembly A valve assembly comprising a valve body, an obturator rotatably mounted in the body and a transducer connected to or located adjacent the obturator in order to determine the position thereof. The transducer may comprise e.g. a potentiometer or a Hall effect d... | 10/15/1996 |
| 5535698 | Angular position indicator for remotely displaying the positions of value elements, actuators and the like The present invention relates to an angular position indicator for remotely displaying the positions of elements suitable to assume different angular positions, and, more specifically, valve elements, actuators and the like; the indicator comprises a body... | 07/16/1996 |
| 5524824 | Sprinkler shut-off valve and indicator A shut-off valve, for use with a sprinkler head affixed to a riser pipe, including a valve seat affixed within the riser pipe upstream from the sprinkler head, the valve seat having an opening and impeding flow through said riser except through the openin... | 06/11/1996 |
| 5523682 | Method for determining position of an internal, movable conductive element A system to determine the position of an electrically conductive element movably positioned in a housing, like a metal disc in a check valve, with greater accuracy and resolution than single magnet systems includes first and second A.C. electromagnets pos... | 06/04/1996 |
| 5497725 | Sight indicator A device for providing visual indication and record of the actuation of a tank vent opening the comprising a rod contacting a tank vent pallet at one end and a magnet affixed to another end of said rod, which moves in a chamber adjacent to a set of vertic... | 03/12/1996 |
| 5469805 | High visibility valve position indicator A high visibility indicator 12 for fitting to the rotatable drive shaft 11 of a rotary actuator 10 is capable of being rotated from a first position to a second position to indicate corresponding first and second positions of the actuator 10. The indicato... | 11/28/1995 |
| 5427140 | Valve assembly A valve assembly is disclosed which comprises a screw spindle threadingly mounted to a valve housing and having a tap handle secured to a first end and a valve disc located at a second end, and wherein rotation of the spindle causes the valve assembly to ... | 06/27/1995 |
