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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 |
| 4914947 | Sampling probe flow sensor A mass air flow sensor having a probe body defining a first arcuate passageway connecting a flow entrance opening aligned with an axis and a flow exit opening offset from the axis so that contaminants suspended in fluid flowing through the first passagewa... | 04/10/1990 |
| 4888154 | Combination structure for sampling the contents of a reactor vessel including pH monitoring means A device capable of being mounted in a small opening in a reactor vessel, after having been inserted through a manway, which permits the continuous sampling of the contents of the reactor during a reaction, and continuous monitoring of the pH factor or ot... | 12/19/1989 |
| 4771641 | Sample divider A sample divider for fine-grained loose material samples contains - arranged symmetrically below one another - a sample delivery pipe, a divider and collecting vessels for sub-samples provided below the divider. The divider is constructed as a divider con... | 09/20/1988 |
| 4750941 | Liquid metering, mixing, dispensing, testing and purging method and apparatus An apparatus for metering, mixing, dispensing, testing and purging liquid compositions composed of predetermined ratios of reactive liquid components. Pressurized sources of the component liquids are coupled to valve mechanisms and liquid metering devices... | 06/14/1988 |
| 4727758 | Flow-through sampling device A flow-through sampling device is provided for obtaining clear filtrate samples from a pipeline containing a slurry of phosphoric acid and calcium sulphate. The sampling device comprises a sample chamber having inlet and outlet pipes connected to the high... | 03/01/1988 |
| 4596156 | Sample gas extracting apparatus A sample gas extracting apparatus constituted by a plurality of parallel connected constant flow-rate gas lines each having a critical flow Venturi connected in the downstream portion, relative to the direction of gas flow therethrough, thereof and a chan... | 06/24/1986 |
| 4561288 | Flue gas analyzer with carbon monoxide detector A flue gas analyzer connects a carbon monoxide gas analyzer cell into a flue gas system to analyze accurately the carbon monoxide content of a flue gas sample. A predetermined flow of flue gas through the analyzer cell at a constant rate is provided by a ... | 12/31/1985 |
| 4527435 | Channeled plug proportional flow sampler An improved proportional gas flow sampler having a combined arrangement of channeled plugs in a main flow line and a sample flow line for obtaining proportionally constant flow samples. The channels in the main line plug have relatively equivalent hydraul... | 07/09/1985 |
| 4522218 | Method and apparatus for splitting two-phase flow at pipe tees A method and apparatus for diverting into a branch line a portion of a gas-liquid flow stream from a two-phase flow trunk line. Each of two or more takeoff pipes withdraw a two-phase portion of the trunk line flow stream and transmit it to a single common... | 06/11/1985 |
| 4487571 | Oil combustion system The specification discloses an oil combustion system for burning waste oil in which oil is pumped by an oil transfer pump from an oil reservoir through a bouyant swirling filter. The oil is supplied to a high pressure input of a pressure reducing fitting,... | 12/11/1984 |
| 4446748 | Proportional flow sampler Disclosed is an improved proportional gas flow sampler having a combined arrangement of baffles with orifice plates for obtaining proportional flow sampling. Orifice plates may be used alone for this purpose and baffles also may be used alone, but by comb... | 05/08/1984 |
| 4353260 | Shield for gas sampling probe A shield for a gas sampling probe is disclosed. The shield includes a tubular member which substantially encloses the probe. Openings are provided in the tubular member to permit a gas flow into the shield past the probe.... | 10/12/1982 |
| 4307620 | Liquid sampling system Liquid is removed from a liquid transfer line 1, for example a crude oil pipeline, through a sampling probe 2 and returned to the transfer line 1 via a return loop 3 and pump 5. At the outlet 4 of the return loop to the transfer line the returning liquid ... | 12/29/1981 |
| 4252021 | Fluid sampling device Apparatus for sampling fluids, i.e. liquids or gases, or both, from a supply source. The apparatus comprises an adapter unit inclusive of a pair of tubular sections, or members, detachably engaged one with the other, each contains communicating inlet and ... | 02/24/1981 |
| 4252132 | Midstream urine specimen collecting device A device for collecting a urine specimen, which is particularly adapted for females, is configured and adapted for use while the user is sitting on a toilet in the normal position for voiding. The device selectively collects the clean, contaminant-free mi... | 02/24/1981 |
| 4215565 | Method and apparatus for testing a fluid A method of testing a fluid is disclosed which comprises passing a main flow of a fluid through a conduit; inserting into said conduit a probe having an inlet opening which faces downstream of the conduit, or is disposed in a chamber communicating with th... | 08/05/1980 |
| 4197857 | System for measurement of oxygen uptake and respiratory quotient A system for measuring the oxygen uptake and respiratory quotient of a patient which employs a high resistance gas flow path in parallel with a pneumotachograph. The high resistance path is connected to each side of the pneumotachograph and a small chambe... | 04/15/1980 |
| 4178919 | Flowmeter for providing synchronized flow data and respiratory gas samples to a medical mass spectrometer Respiratory gas flow data is synchronously provided along with continuous samples of the gases for analysis by a medical mass spectrometer. The gas flow data is determined by use of the differential pressure across a resistive core in a sampling flowmeter... | 12/18/1979 |
| 4167117 | Apparatus and method for sampling flowing fluids and slurries A method and apparatus for sampling the composition of fluid flowing through a conduit which includes a sampling conduit having an inlet disposed within said conduit and transverse to the axis of fluid flow in said conduit and an outlet connected to said ... | 09/11/1979 |
| 4131011 | Method and device for determining the end point for drying A method and device for determining the end point for drying in a stream of flowing fluid which method utilizes a reduction in pressure to effect a bypass of fluid flow through a humidity sensor with return of the sample to the main fluid stream. The meth... | 12/26/1978 |
| 4118987 | Device for taking liquid samples A device for taking liquid samples from a liquid circuit has a needle head ousing formed of an outer component and an inner component readily detachable from the outer component for easy replacement. The outer component includes inlet and outlet ports to b... | 10/10/1978 |
| 4115229 | Apparatus for sampling a gaseous stream A gas analyzer is provided with a common inlet-outlet chamber through which all gases must travel to enter or exit the flow circuit.... | 09/19/1978 |
| 4080831 | Secondary sampling device A secondary sampling device for particulate matter is disclosed which includes a plurality of sample splitters arranged in series wherein each sample splitter is perpendicular to those adjacent thereto.... | 03/28/1978 |
| 4037474 | Representative sampling device A hopper into which loosened pieces of the paper collection are fed. A conveyor for transporting the loosened pieces of paper to a higher elevation. A fan for generating a stream of air to blow through the pieces of paper as they leave the conveyor at the... | 07/26/1977 |
| 4027537 | Apparatus for sampling a stream of fibers and the like Apparatus for sampling fibers which is simplified over previous apparatus for like purpose. A part of the fiber collecting chamber is movable to form a valve for admitting or excluding cotton; a part of the collecting chamber acts as dogs to hold the cott... | 06/07/1977 |
| 4018089 | Fluid sampling apparatus Improved apparatus for bringing a fluid in a process stream in contact with a sensor is disclosed. The present invention uses the kinetic energy of the process fluid to convey some of the fluid to and from the sensor, as opposed to the prior art practice ... | 04/19/1977 |
| 4014216 | Apparatus for sampling gas mixtures A light weight apparatus for sampling a gas mixture, especially a gas under pressure, in order to ascertain the extent of contamination in said mixture, including gaseous, liquid and solid contaminants. The apparatus includes in combination a filter means... | 03/29/1977 |
| 3999425 | Method and apparatus for preforming exhaust gas emission tests with vehicle engines For determining the emission contents of the exhaust gases of a vehicle internal combustion engine the idling engine is disengaged from the vehicle's driving transmission and is, during a fixed period of time, subjected to a series of load variations by m... | 12/28/1976 |
| 3974697 | Method and apparatus for sampling a liquid stream A method for rapid intermittent sampling of a fluid stream is disclosed. It comprises forming a jet of a part of the stream, diverting the flow of the jet along a first path positioned at an angle to the axis of the jet by forming a pressure differential ... | 08/17/1976 |
| 3965749 | Sampling and dilution method A conduit arrangement for measuring unburned combustibles in the exhaust eam issuing from an engine. A restriction is provided in the exhaust duct to form a superatmospheric pressure zone upstream from the restriction and a subatmospheric pressure zone d... | 06/29/1976 |
| 3960500 | Gas sampling analyzing system A gas sampling analyzing system is provided whereby flue or process gasses are aspirated from a process duct to an analyzer and are therefrom returned back to the process duct to prevent condensation at the system exhaust. The sampling analyzing system is... | 06/01/1976 |
| 3953844 | Incipient fire detector The incipient fire detector employs a particulate monitor for detecting particulates in the atmosphere. During an incipient fire condition, prior to ignition, a large mass of particulates less than 5 microns in size is generated by the combustible materia... | 04/27/1976 |
