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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7891311 | Fluid flow indicator A fluid flow indicator for observation of low flow rates in liquids includes a capillary tube (12) slidably mounted at each end in passageways (4) and (5) and biased into a no-flow indicating position by a castellated elastomeric membrane (14... | 02/22/2011 |
| 7017510 | Artificial wind producing flag pole assembly An artificial wind producing flag pole assembly for providing airflow in windless conditions to display a flag in an unfurled position as if a steady wind was present. The artificial wind producing flag pole assembly includes a flagpole having a hollow interior. An ... | 03/28/2006 |
| 6976448 | Restriction indicator The present disclosure relates to a restriction indicator for an air cleaner system of an internal combustion engine. The restriction indicator includes a housing divided into first and second chambers by a diaphragm. A signal member is connected to the diaphragm. T... | 12/20/2005 |
| 6938455 | Grease supply confirming device and method A grease supply confirming device confirming the supply of a grease into a bearing, according to the present invention includes a detecting member an elastic supporting member and a movable body. The movable body such as a metal spherical body is movably provided in... | 09/06/2005 |
| 6881327 | Water treatment device with fill-counting cartridge A filter cartridge end-of-life mechanism and a filter cartridge assembly for a water treatment device. The end-of-life mechanism comprises a float which is moved along an escapement path each time the device is filled. A counting mechanism connected to the float pro... | 04/19/2005 |
| 6649045 | Filter cartridge assembly for water treatment device A filter cartridge end-of-life mechanism and a filter cartridge assembly for a water treatment device. The end-of-life mechanism comprises a float which is moved along an escapement path each time the device is filled. A counting mechanism connected to th... | 11/18/2003 |
| 6604486 | Restriction indicator The present disclosure relates to a restriction indicator for an air cleaner system of an internal combustion engine. The restriction indicator includes a housing divided into first and second chambers by a diaphragm. A signal member is connected to the d... | 08/12/2003 |
| 6386196 | Warning device for oxygen delivery system failure An oxygen delivery system which provides a visual and audible warning signal for system or oxygen flow failure. When pressure fitted tubing detaches, the audible whistle alarm indicates that the oxygen delivery system has become disconnected and the syste... | 05/14/2002 |
| 6331820 | Explosion proof water flow detector A paddle type flow detector for an explosive environment is mountable onto a pipe. The detector includes a structure for mounting to a pipe, a substantially sealed switch housing containing an electrical switch, and a paddle located within the pipe. A lev... | 12/18/2001 |
| 5924446 | Control apparatus for liquid medium A control apparatus for a liquid medium including a body portion provided with flow channels. The body portion includes an inlet for the medium, an outlet for the medium to an apparatus that the medium is conducted to, a return point for the medium return... | 07/20/1999 |
| 5890515 | Flow control valve with a flow meter The height of the valve with a flow meter shall be as small as possible, enabling it to be mounted in restricted spaces. In order to achieve this, all adjusting and display movements are not executed axial but on the contrary polar. The rotating spindle o... | 04/06/1999 |
| 5882507 | Water filter cartridge end-of-life mechanism A filter cartridge end-of-life mechanism and a filter cartridge assembly for a water treatment device. The end-of-life mechanism comprises a float which is moved along an escapement path each time the device is filled. A counting mechanism connected to th... | 03/16/1999 |
| 5845597 | Separation medium efficiency indicator An efficiency indicator for a separation system, such as a water filter, wherein a first volume of fluid is exposed, under a first pressure, to a separation medium and a second volume of fluid is recovered therefrom, under a second, lesser pressure. The i... | 12/08/1998 |
| 5798697 | Exhaust/supply direction indicator An apparatus for detecting the flow direction of a fluid from an apparatus or between two apparatuses such as a biohoods, fume cabinets, or filters. The device includes a conduit horizontal plane and adapted to receive the fluid. A detecting element is di... | 08/25/1998 |
| 5645011 | Fluid flow indicator A fluid flow indicator is presented particularly for use within an existing gasoline pumping apparatus. The fluid flow indicator includes an outer cage member, a first hollow transparent cylindrical member contained within the outer cage member, and a sec... | 07/08/1997 |
| 5577538 | Liquid dispensing nozzles having improved view glass/flow indicators A fuel dispensing nozzle is provided with a view glass/fuel flow indicator that are disposed between the main fuel valve and a downstream check valve. The view glass/flow indicator means comprise a pair of horizontally aligned view glasses. A plurality of... | 11/26/1996 |
| 5536394 | End of life mechanism for water treatment cartridge An apparatus for use with a water treatment unit and in particular, those having a treatment cartridge, that indicates the end of life of the unit. The apparatus comprises a housing with at least one opening for the passage of liquid to a chamber, formed ... | 07/16/1996 |
| 5419360 | Fluid supply system with leak detection device A fluid supply system including a casing having at least one duct extending through it for the passage of fluid and a recess in the casing around the duct or ducts, a cover covering the recess and held against a bearing surface on the casing surrounding t... | 05/30/1995 |
| 5410298 | Fluid flow direction detector An apparatus for detecting the flow direction of a fluid between two enclosed spaces, such as hospital rooms, includes a conduit extending along a horizontal plane and adapted to receive the fluid. A detecting element is disposed within the conduit and mo... | 04/25/1995 |
| 5347847 | Test apparatus employing pneumatic bridge for testing pneumatic flow resistance and related methods In an apparatus for testing pneumatic flow resistance of a test component, such as an air filter useful in a system for admixing parenteral solutions, a pneumatic bridge has two branches connected, via a filter, a flow restrictor, and a flowmeter, to a so... | 09/20/1994 |
| 5343826 | Fluid indicator assemblies for sight flow apparatus A sight flow apparatus includes a body designed to be connected in-line to fluid pipes within a manufacturing plant or other facility. One or more window assemblies are removably mounted on the sides or ends of the body to allow visual inspection of fluid... | 09/06/1994 |
| 5291182 | Fluid flow direction detector An apparatus for detecting the flow direction of a fluid between two enclosed spaces, such as hospital rooms, includes a conduit extending along a horizontal plane and adapted to receive the fluid. A detecting element is disposed within the conduit and mo... | 03/01/1994 |
| 5273087 | Vapor recovery nozzle with flow indicators A user friendly vapor recovery nozzle with special signaling devices to signal and assure the customer of proper delivery of fuel and return flow of hydrocarbon vapors. In the preferred embodiment, the signaling devices include both a fuel flow indicator ... | 12/28/1993 |
| 5244017 | Fuel and vapor flow signaling process A vapor recovery process signals to customers the presence of flow of gasoline or other liquid fuel and the return flow of vapors. In the preferred process, a customer's tank is fueled with a vapor recovery nozzle. Vapors emitted during fueling are collec... | 09/14/1993 |
| 5207467 | Monitor for detecting the absence of an electronic component on a vacuum pickup A system is provided for determining the presence, or absence of a component on the end of a vacuum pickup device. A monitor having a transparent body portion and plural air flow passageways is provided. An indicator is provided for each vacuum pickup dev... | 05/04/1993 |
| 5189979 | Fluid pressure indicator A simple and compact fluid pressure indicator comprising a housing having a passage communicating with the pressure to be monitored leading to an interior chamber, a flexible diaphragm sealing and dividing the chamber into two parts, a colored indicator a... | 03/02/1993 |
| 5186118 | Windage-gauging method and apparatus for hunters A wind gauge includes silica particles dispensed from their container as a floating cloud which is carried along by ambient wind and thus illustrates wind speed and direction. The particulate media may also include a mixture of silica particles and thermo... | 02/16/1993 |
| 5176173 | Backflow valve A backflow valve for use in a post-mix carbonator system for preventing the backflow of carbonated fluid, thereby preventing the contamination of the fresh water supply, and indicating when such a backflow condition has occurred. In a first embodiment the... | 01/05/1993 |
| 5174964 | Gas testing apparatus A gas testing apparatus of the type that directs a stream of gas to be tested through a tube containing reagent chemicals. The apparatus has a connector fitting to enable it to be connected to a closed system containing the gas to be tested, a base member... | 12/29/1992 |
| 5012840 | Fluid flow indicator system A fractional flow indicator system by which flow in a fluid dispensing conduit is visually indicated using an improved fractional flow diverting element which utilizes a venturi effect rather than a check valve to create a fractional flow pressure differe... | 05/07/1991 |
| 4993460 | Sight glass incorporated into fuel dispensing nozzle A fuel dispensing nozzle incorporating sight glass in the vicinity of its poppet valve, which a sight glass is sealingly engaged within the body cap, comprising a lens of either the magnifying or nonmagnifying type, to provide a ready viewing of any activ... | 02/19/1991 |
| 4963857 | Translatable dual magnets A fluid flow detection device includes a fluid conduit, at least one magnet translatable by action of the flow of fluid (gas or liquid) in said conduit and a switch which is caused to change state between "on" and "off" relative to the position of the mag... | 10/16/1990 |
| 4931776 | Fluid flow sensor with flexible vane A flow sensor for regulating the air flow rate to a cooling system can be formed as a housing for channeling the flow through a retangular cavity and a one piece vane of bent metal strip which deflects and closes an electrical contact at a predetermined a... | 06/05/1990 |
| 4915975 | Method of fluid flow visualization A method of flow visualization comprises the steps of coating the surface of a component in a pigmented oil-based paint of non-gelling characteristics, applying dry dye particles, which are soluble in the oil based paint to the surface of the coating and ... | 04/10/1990 |
| 4819577 | Fluid flow indicator An inexpensive fluid flow indicator capable of use in low flow conditions in a variety of environments, including but not limited to laboratory, industry, and medical applications. Flows are visually indicated by the rotation of balls loosely retained in ... | 04/11/1989 |
| 4758827 | Duct smoke detector Apparatus for sensing smoke in a duct includes a housing with inlet and outlet ports and a flow chamber which directs gas flow on a path between the ports and to and from a smoke detector. A vaned rotor on the path is visible through a window in the housi... | 07/19/1988 |
| 4745877 | Rotary sight flow indicator A rotary sight flow indicator which provides a visual indication of fluid flow and of the flow direction by the rotation of a shrouded cross-flow rotor. The sight flow indicator consists of a housing with a cavity containing the rotor and its shroud, and ... | 05/24/1988 |
| 4603707 | Purge block for gas systems IA purge block is disclosed in which inlet, process, purge and vent ports are series connected in a ring or bridge. The channel or passageway connecting the inlet and purge ports comprises a flow sensor. The impedance to gas flow of each channel is differ... | 08/05/1986 |
| 4599047 | Chemical feed pump flow indicator A flow indicator and a method for monitoring the operation of a chemical feed pump are provided. This indicator includes a housing defining a flow chamber and having an inlet through one end and an outlet through the other end. The inlet and the outlet of... | 07/08/1986 |
| 4558862 | Golf pin sock An improved golf pin flag device for providing accurate wind velocity information is disclosed, including a golf pin and a flexible open-ended frusto-conical shaped flag member which, when encountering incident wind, enlarges and becomes extended in propo... | 12/17/1985 |
