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Topic: Pressure chamber

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	Earth Systems Solutions: Pressure Chamber Systems (Site not responding. Last check: 2007-10-12)
		The low-pressure chamber is an inexpensive pressure vessel for use in soil-moisture and water-retention analyses.
		Pressure hose connection: The pressure hose connection is a quick-connect fitting used to connect the pressurized air supply hose to the pressure chamber.
		Pressure can also be released by turning the regulator counter-clockwise, reducing the pressure in the system, and by pulling the ring on the safety relief valve on the low-pressure chamber lid.
	www.earthsystemssolutions.com /assets/2pcs.html (1515 words)

	U.S. Patent: 6024424 - Braking device - February 15, 2000
		The closing pressure chamber is separated from the relief circuit, and the pressure in the closing pressure chamber is independent of the pressure in the relief circuit.
		Because the closing chamber is demarcated from the relief circuit in the fluid-tight manner, the closing chamber is not influenced either by the fluid pressure of the upstream side of the relief circuit.
		According to the present invention, the valve closing pressure receiving portion (the end of the rod portion 22a) receiving the fluid pressure in the direction of closing the valve of the valve element is exposed in the valve closing chamber (the third chamber 27) which is separated in the fluid-tight manner from the relief circuit.
	www.everypatent.com /comp/pat6024424.html (5735 words)

	U.S. Patent: 5664552 - Gas pressure accumulating and supplying device for use in model guns - September 9, 1997
		A gas pressure accumulating and supplying device for use in model guns according to claim 1, wherein said case member is held in a grip provided in a body of a model gun which uses gas pressure for shooting a sham bullet so as to form said model gun together with said body.
		The gas pressure supplied from the pressure accumulating chamber through the gas pressure to the pressure chamber is caused to act on the sham bullet put in the bullet holding chamber so as to shoot the sham bullet in response to the movement of a trigger provided in the body of the model gun.
		The gas controlling structure is operative to lead gas pressure to the bullet holding chamber positioned just at the back of the barrel 2 and the pressure chamber 9 formed in the movable member, respectively, in response to the magnitude of the gas pressure acting on the gas controlling structure.
	www.everypatent.com /comp/pat5664552.html (1679 words)

	Continuous intracellular recording from mammalian neurons exposed to hyperbaric helium, oxygen, or air -- Dean and ...
		Two major obstacles in these earlier studies of the mCNS were the inaccessibility of the microelectrode once the pressure chamber was sealed, which hindered replacement of a broken or plugged microelectrode, and mechanical disturbances of the tissue slice and microelectrode that occurred when sealing the hyperbaric chamber or while compressing or decompressing the chamber (33-35).
		Our pressure chamber most closely resembles two previous horizontal chambers (11, 35); however, it differs primarily in the style of closure, the equipment sled that carries the brain slice chamber and microdrives, and the design of the high-pressure sample cylinders that are used for studies of CNS oxygen toxicity (29).
		The pressure containment vessel, upon completion, was inspected for structural integrity, hydrostatically-pressure tested, and certified by the appropriate authority to insure the safety of the operator and avoid structural damage to the chamber.
	jap.physiology.org /cgi/content/full/89/2/807/DC1 (5478 words)

	The Pressure Chamber, a.k.a. "The Bomb" (Site not responding. Last check: 2007-10-12)
		There are different types of pressure chambers, some using a tank of high pressure gas, some using a hand-pump, but all work on the same basic principle and in most cases the operation and use of the different types of pressure chambers is identical.
		In simplest terms, the pressure chamber can be thought of as measuring the "blood pressure" of a plant, except for plants it is water rather than blood, and the water is not pumped by a heart using pressure, but rather pulled with a suction force as water evaporates from the leaves.
		Simply put, the pressure chamber [63K] is just a device for applying air pressure to a leaf (or small shoot), where most of the leaf is inside the chamber but a small part of the leaf stem (the petiole) is exposed to the outside of the chamber through a seal.
	fruitsandnuts.ucdavis.edu /crops/pressure-chamber.shtml (2215 words)

	In-hole rock drilling machine with a hydraulic impact motor - Patent 5715897 (Site not responding. Last check: 2007-10-12)
		A control valve is arranged to pressurize a drive chamber with the hydraulic fluid to drive the piston hammer forwardly to strike the drill bit, and to then depressurize the drive chamber to allow the return stroke of the piston hammer.
		The return stroke of the piston hammer 24 is caused by depressurization of the rear drive chamber 26, allowing a second pressure chamber or front drive chamber 34, that is preferably continuously pressurized, to generate the return stroke of the piston hammer 24.
		This pressure cannot be so high that it jeopardizes the spool valve 40 staying stably in its forward position since the row of large holes 50 in the valve 40 is close to the annular chamber 46.
	www.freepatentsonline.com /5715897.html (8108 words)

	Richard Nakka's Experimental Rocketry Site (Site not responding. Last check: 2007-10-12)
		The Chamber Pressure that a rocket motor develops is of crucial importance with regard to the successful operation of a rocket motor.
		Intuitively, the pressure buildup is a result of the combustion of the propellant grain, whereby the gases produced hasten to escape through the nozzle throat.
		The variation of chamber pressure during the steady-state burning phase is due mainly to variation of grain geometry (burning surface area) with associated burn rate variation.
	members.aol.com /ricnakk/th_pres.html (1164 words)

	Fuel pump having a pressure chamber vented via a ball valve to the fuel tank - Patent 4940397 (Site not responding. Last check: 2007-10-12)
		The connecting pipe is connected to a mixture-former and the pressure chamber has in its upper region a ball valve with a return line which leads to a fuel tank.
		These deficiencies no longer occur in the pump of the invention, since its pressure chamber is used as a gas separator from which the fuel vapor which forms is returned directly to the fuel tank via a ball valve and a return line.
		A working chamber 8 is formed between a wall 7 of the cover 2 and the diaphragm 3 and chamber 8 is in communication with a pressure chamber 10 via a pressure valve 9 and with a fuel tank (not shown) via a suction valve 11, a suction connection 12 and a line 13.
	www.freepatentsonline.com /4940397.html (1469 words)

	Pump-Up Pressure Chamber Instrument
		The Pump-Up Pressure Chamber is different from the conventional gas chamber in that it does not require a source of compressed gas such as nitrogen.
		Simply put, the pressure chamber is just a device for applying air pressure to a leaf (or small shoot), where most of the leaf is inside the chamber but a small part of the leaf stem (the petiole) is exposed to the outside of the chamber through a seal.
		The amount of pressure that it takes to cause water to appear at the cut surface of the petiole tells you how much tension the leaf is experiencing on its water: a high value of pressure means a high value of tension and a high degree of water stress.
	www.pmsinstrument.com /pump-up.htm (1340 words)

	Pressure Chambers (Extractors) for soil water retention analysis (Site not responding. Last check: 2007-10-12)
		The lid and pressure chamber are designed to fit together tightly and form an air-tight seal without the use of an O-ring or gasket.
		Triangular alignment marks, found on the top surface of the lid flange and on the side of the pressure chamber, are used to properly orient the lid.
		A quick-connect fitting is used to connect the pressurized air-supply hose to the pressure chamber.
	www.earthsystemssolutions.com /assets/extractors.html (1020 words)

	Pressure Chamber dispenses cyanoacrylates., I J Fisnar Inc.
		The PP300-A Clear-View Pressure Chamber system is a sure method of dispensing, cyanoacrylate directly from a jar or bottle without having to transfer the material from the supplier's container.
		Pressure Chamber, place the bottle inside the chamber, insert the polyethylene tube into the bottle and secure the chamber.
		Air pressure is fed via an air regulator (included) and the chamber is pressurized.
	news.thomasnet.com /fullstory/451185 (732 words)

	Positive air pressure chamber started with patients quickly after surgery
		Cutuk described the pressure chamber and a study determining its safety Sunday, April 3, at Experimental Biology 2005 in San Diego.
		Air pressure is changed by adding air in (positive air pressure) or releasing it out (negative air pressure), using the exhaust port of a common vacuum cleaner.
		It's possible to adjust the positive air pressure to provide so much buoyancy that weight-bearing on the treadmill is only 5 or 10 percent of the patient's actual weight or, in the case of the lightest patients, the sensation that they are actually floating over the treadmill.
	www.eurekalert.org /pub_releases/2005-04/foas-pap032005.php (801 words)

	Space Cabin Simulator & Low Pressure Chamber (Site not responding. Last check: 2007-10-12)
		The first low-pressure chamber used in the Medical Research Laboratory (at Hazelhurst Field, Mineola, New York) was at the time of its installation the largest one of its kind in the world.
		The chamber was designed to accommodate several persons and was large enought to permit the use of such testing equipment as time reaction apparatus, the Barany chair, and others.
		The chamber was moved to Wright Field in 1926 and was renovated.
	www.brooks.af.mil /ABG/MU/cabin.html (241 words)

	The SSME (Henry Spencer; Bruce Dunn)
		Not only are the turbopumps running at a massively higher stresses, the chamber is at about 7 times the pressure, increasing the amount of heat per unit wall area which needs to be dealt with.
		It is chamber pressure, not thrust or size which makes an engine difficult to build.
		In turn, it is the SSTO requirement for the last bit of Isp and the requirement for operation in both the atmosphere and in space which drive the use of high chamber pressure engines.
	yarchive.net /space/rocket/ssme.html (587 words)

	Pressure Chamber
		In this series of experiments, you will control the action of a piston in a pressure chamber which is filled with an ideal gas.
		If the pressure exceed this amount, the chamber will crack and the gas will leak out and your experiment will be over.
		Being careful not to crack the cylinder with excess pressure, plot out the relation between pressure and volume as the temperature is held constant.
	www.hazelwood.k12.mo.us /~grichert/sciweb/pressch.htm (470 words)

	Pressure Chamber - News
		Trey Goodwin pretends to choke Amber Guyton during Chamber of Oppression Tuesday night in the Russell House.
		Co-event chairperson Amanda Bowling, a second-year HRTM student, found the Chamber of Oppression to be a success and looks to improve it in the future.
		The chamber was a series of stations which students were lead through, with each depicting a different form of discrimination.
	dailygamecock.com /news/2006/02/22/News/Pressure.Chamber-1622915.shtml (596 words)

	New Designz Low Pressure Chamber Review / Reviews - pbreview.com (Site not responding. Last check: 2007-10-12)
		This chamber replaces the allen bolt that holds on the air block (pneumatics).
		Additionally, the LPC is large and the chamber inside is equally as volumous.
		Well i got one of these because it is supposed to drop pressure and it dropped mine by 50 psi.
	www.pbreview.com /products/reviews/1434 (682 words)

	Neighborhoodtimes: Pressure chamber is goal of fundraiser
		In another case, Fowler said his 87-year-old stepfather experienced a stroke that paralyzed him on his right side, but after receiving chamber treatment was able to walk without using a cane.
		The chamber compresses air to greater-than-normal pressure, forcing it into a patient's body.
		The pressure enriches the oxygen's blood supply to the brain, activating dormant blood cells.
	sptimes.com /2005/12/14/Neighborhoodtimes/Pressure_chamber_is_g.shtml (402 words)

	Arthritis Issues (Site not responding. Last check: 2007-10-12)
		The special lower-body air pressure chamber was developed by researchers at the University of California, San Diego (UCSD).
		As the patient's surgical wounds heal and they begin to regain strength and flexibility, the pressure in the chamber and the amount of body weight carried is gradually increased to match his or her progress.
		Details about the pressure chamber were presented this weekend at the Experimental Biology conference, in San Diego.
	www.arthritisissues.com /ms/news/524690/main.html (434 words)

	Sunday Times - South Africa's best selling newspaper (Site not responding. Last check: 2007-10-12)
		Death chamber: Police examine the remains of a homemade hyperbaric chamber that exploded - killing a retired surgeon and his brother in Polokwane on Friday.
		A retired surgeon and his brother died in a freak accident when a homemade oxygen chamber exploded in the backyard of a Polokwane house - blasting the remains of one of them more than 10m away.
		According to a family member, the chamber was constructed and operated by Gerhard Eloff.
	www.sundaytimes.co.za /2004/02/01/news/gauteng/njhb01.asp (448 words)

	References for articles concerning Plant Moisture Stress by topic using the Pressure Chamber (Site not responding. Last check: 2007-10-12)
		Duniway, J.M. Comparison of Pressure Chamber and Thermocouple Psychrometer Determinations of Leaf Water Status in Tomato.
		Pressure Chamber Procedures for Leaf Water Potential Measurements of Cotton.
		Pressure increase rate affects the accuracy of stem water potential measurements in deciduous trees using the pressure chamber technique.
	web.nmsu.edu /~ebsoul/references.htm (1483 words)

	how to raise blood pressure
		That the constricted arteries raise blood pressure is in defiance of David...
		Atmospheric pressure is defined as the force per unit area exerted against a surface by the...
		Plenty of drugs are on the market that actually raise blood pressure on their own or because they block the action of a drug that lowers blood pressure.
	www.transferfactorworldwide.com /how-to-raise-blood-pressure (9627 words)

	Submarine Pressure Chamber
		The Submarine Pressure Chamber is primarily intended for use in the static pressure testing of submarine models, which are attached to the chamber by means of cone-end adaptors, and may be either air or water-backed, depending on the desired operating conditions.
		This vessel, which uses fresh water as the pressurising medium, is mounted horizontally and so may accommodate easily asymmetric components by means of a ‘rail and trolley’ system.
		The chamber is approximately 2m in diameter and has a parallel length of 7m.
	www.marine.gov.uk /submarine_pressure_chamber.htm (251 words)

	☞ vacuum - high vacuum chamber - high vacuum chamber online guide (Site not responding. Last check: 2007-10-12)
		Aluminum Ultra High Vacuum Chamber Advantages: Aluminum has excellent ultra high vacuum (UHV) properties and for many applications aluminum is a superior UHV vacuum chamber...
		A chamber for tensile testing vanadium alloys at pressure of 10/sup /minus/5/ Pa (10/sup /minus/7/ torr...
		Generation of extremely high vacuum by ordinary procedures with a SUS304 vacuum chamber and total and partial pressure measurements by hot cathode ionization gauges and a quadrupole mass spectrometer Generation of extremely high vacuum by...
	www.all-vacuum.info /highvacuum/high-vacuum-chamber.html (730 words)

	High Pressure Chamber
		Reproductive sterilization (triploidy) and sex selection in some species can be induced by subjecting fertilized eggs to high pressures.
		Triploid fish typically have increased growth rates since energy is not expended on gonad development and breeding behavior (i.e., teenagers).
		This precision-made HPC is made from a solid piece of stainless steel with a double O-ring brass piston.
	aquaticeco.com /index.cfm/fuseaction/product.detail/iid/3431/cid/1012 (109 words)

	Virtual Laboratory: Ideal Gas Law (Site not responding. Last check: 2007-10-12)
		Now go to the control panel under the piston where there is a button with a single arrow on it.
		These gasses have different molecular weights and hence have a different temperature and pressure response when the volume is changed.
		If you were designing a pressure cylinder for the blue gas, approximately what pressure would it have to withstand when the temperature of that gas reaches 2000 K. What about for the yellow gas?
	jersey.uoregon.edu /vlab/Piston/index.html (508 words)

	Underwater lab dives into thin client, wireless net technologies - Network World
		And like relying on the broadband wireless link that to Davis and her fellow scientists was almost as important as the umbilical cord carrying power and air to the underwater pressure chamber called Aquarius.
		Its cigar-shaped pressure chamber, like a stationary submarine, is mounted on four legs attached to the sea floor.
		There are three parts to the Aquarius network: the underwater chamber, the surface weather buoy and the onshore LAN at Key Largo (see a network diagram).
	www.networkworld.com /news/2006/030606widernet-aquarius.html (1100 words)

	Shocktech Low Pressure Chamber Review / Reviews - pbreview.com (Site not responding. Last check: 2007-10-12)
		The Shocktech Low Pressure Chamber is newer, so it should be commonly available, both new and used.
		If you have troubles with your gun pressure keeping up to your ROF, this is a very good purchase to fix that.
		Every now and then the stock RAM Air Chamber would leak after cleaning the gun, even after re-oiling the chamber.
	www.pbreview.com /products/reviews/1919 (558 words)

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