Buoyancy compensator

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Topic: Buoyancy compensator

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	Buoyancy - Wikipedia, the free encyclopedia
		In physics, buoyancy is an upward force on an object immersed in a fluid (i.e.
		Buoyancy is important for many vehicles such as boats, ships, balloons, and airships.
		It was the ancient Greek, Archimedes of Syracuse, who first discovered the law of buoyancy, sometimes called Archimedes' principle:
	en.wikipedia.org /wiki/Buoyancy (790 words)

	Buoyancy compensator - Wikipedia, the free encyclopedia
		Some types of buoyancy compensator also built around the diver's SCUBA equipment or are built into its harness.
		The diver's overall buoyancy and centre of buoyancy can routinely be adjusted by altering the volume of the gas in the BC, lungs and diving suit.
		The attitude of a static and stable object in water, such as a diver, is determined by its centre of buoyancy and its centre of mass.
	en.wikipedia.org /wiki/Buoyancy_compensator (1369 words)

	Torso-conforming releasable diver's weight pouch - Patent 6030147
		It is a further object of the present invention to provide an improved buoyancy compensator vest with built-in weights located in a releasable weight pouch having a curvature retaining device which causes the weights to move to conform to the individual diver's torso.
		Included on the buoyancy compensator unit 10 is a spider or vest 12 having a back portion 14 to which are attached shoulder portions 16 and 18 extending forwardly into chestbands or chest portions 20 and 22.
		It is another object of the present invention to provide an improved buoyancy compensator vest with built-in weights which has a releasable, weight-retaining pouch with a deformable, yet retainable curvature which corresponds to that of the individual diver using the device.
	www.freepatentsonline.com /6030147.html (3216 words)

	Buoyancy Compensators: frontier cordura - A surrounding air volume type buoyancy compensator.
		The position of the ballast pockets on the buoyancy compensator ensure a very comfortable dive given the absence of the irritating lead weights around the waist.
		It is the most up-to-date and functional buoyancy compensator.
		Buoyancy Compensators: frontier cordura - A surrounding air volume type buoyancy compensator.
	www.modulom.com /english/prodotti/frontier_cordura.html (220 words)

	Evaluation of Aqua Lung (U.S. Diver) "Seamaster" Buoyancy Compensator w/ Fenzy Bottle - Storming Media
		Buoyancy compensator evaluation was conducted in three phases.
		Phase I included receipt inspection of the buoyancy compensator, technical review of the manufacturer-supplied documentation (instructions / repair manuals), diver orientation, and Test Pool Evaluation (surface floating attitudes if the BCs were used as life jackets).
		Abstract: NEDU was tasked to conduct a survey of commercially available buoyancy compensators (BCs) and perform testing to determine which BCs perform satisfactorily.
	www.stormingmedia.us /18/1819/A181983.html (147 words)

	DAN Divers Alert Network : CPSC, Cressi-Sub Announce Recall of Scuba Buoyancy Compensators
		Buoyancy Compensator devices with a black retaining ring around the yellow inflate button on the inflation mechanism, and an adjoining gray cover assembly (bypass case), which screws onto the inflator, are subject to this recall and must be retro-fitted.
		The recalled buoyancy compensators have model numbers J107, J113, J115, and J119.
		Description: Buoyancy Compensator devices provide buoyancy control for scuba divers by allowing them to inflate or deflate the devices.
	www.diversalertnetwork.org /news/article.asp?newsid=543 (273 words)

	Diver Discount Catalog-Buoyancy Compensator,BCD,diving gear,spear guns & scuba diving equipment
		Buoyancy is controlled with an single air bladder which is either positioned in the rear of the BCD or distributed (jacket-style).
		Cold water diving calls for the use of thick wetsuits, both of which require ample lead to offset their buoyancy, and a BC with enough lift capacity to compensate for the loss of that buoyancy at depth.
		comes in many shapes and sizes for both men and women, but its main purpose is to help you control your buoyancy underwater and to provide a safe resting float at the surface.
	www.diverdiscount.com /bcd.html (429 words)

	Web Project
		Buoyancy compensator is used for changes in buoyancy.
		Purpose: To demonstrate the importance and reveal the interesting aspects of the physics principles of buoyancy and pressure in the sport of scuba diving.
		let air out of the buoyancy controller to neutralize buoyancy.
	www.unc.edu /~tennille/PROJECT.HTM (515 words)

	Our Dive Products
		With the new back floatation buoyancy compensators, the problem of staying upright on the surface is reduced by having the weight located at the bottom of your tank.
		The patented Tank Buoyancy Compensator (T.B.C) is a supplementary, five pound ditchable weight system that is located on the bottom of your scuba tank to offset the positive buoyancy affects incurred by air usage throughout a dive.
		The Tank Buoyancy Compensator is available for all 7 1/4 inch diameter scuba tanks, most commonly the 80 and 63 cu.
	diveinnovations.com /products.htm (618 words)

	New England Aquarium Dive Club Latest News
		Buoyancy Compensator devices provide buoyancy control for scuba divers by allowing them to inflate or deflate their devices, thus changing the diver's buoyancy.
		A buoyancy compensator is a bag that inflates and deflates depending upon your buoyancy requirements.
		In this way, the buoyancy compensator allows you to maintain neutral buoyancy, which is an important part of scuba diving.
	www.neadc.org /recall.html (1551 words)

	Bitz Scuba Diving Equipment Guide - Buoyancy Compensators
		Sometimes the pull dump is attached to the corrugated hose, frequently pulling it may strain the connections and cause it to break free, causing the buoyancy compensator to become useless.
		Second-hand buoyancy compensators can be easily leak tested by inflating them and waiting to see if they deflate; the valves can also normally be serviced quite cheaply as well.
		There are any number of styles of buoyancy compensator with more features available than you can frequently shake a stick at.
	www.bitz.fsnet.co.uk /bitzbcd.htm (1442 words)

	scuba diving
		Another hose from the regulator attaches to an adjustable air bladder called a buoyancy compensator (or control) device (BCD or BC), which the diver wears as a vest.
		Most divers carry from 5 to 20 lb (2.3 to 4 kg) of weight, depending on their body weight, the suit they are wearing, and where they are diving (buoyancy is greater in saltwater than in fresh water).
		A quick-release buckle enables the diver to shed the belt and rise to the surface in an emergency.
	www.scuba-diving-resources.com (784 words)

	scuba buoyancy compensators
		The buoyancy compensator (BC) is the platform of the SCUBA diving system that provides this flexibility and its importance should not be overlooked.
		Buoyancy Compensators Mares BCs are made for the most demanding divers.
		Just as DUI drysuits are in a class all of their own we invite you to test them and you will find that DUI Buoyancy Control Systems are also in a class all of their own.
	www.aquaexplorers.com /buoyancy_compensators.htm (1021 words)

	Big Dive Gear Buyer's Guide - BCs
		Whatever BC you choose, make sure it offers enough total buoyancy at the surface, and do not be misled by a manufacturer's maximum lift figures (these do not take into account parts of the jacket that remain out of the water at the surface).
		WHEN the adjustable buoyancy life-jacket (ABLJ) was invented, it revolutionised diving because it meant that a diver could be as neutrally buoyant as a fish.
		You also need to consider a jacket's buoyancy underwater, plus features like pockets and D-rings, and make sure the jacket will not encumber you with too much bulk while swimming.
	www.divernet.com /gear/guide/bcs.htm (348 words)

	Vertical Buoyancy Compensator (VBC)
		To compensate for these buoyancy changes, the Vertical Buoyancy Compensator has been included in the BCS.
		The effect of these changes on the buoyancy of the vehicle are shown in Table 2-10.
		As the VBC increases its buoyancy through its full range, its own center of buoyancy shifts forward along the x-axis of the vehicle.
	www.ssl.umd.edu /projects/RangerNBV/thesis/2-3-2-2.htm (259 words)

	BCD's - Buoyancy Control Device for diving
		BCD, BC, Buoyancy Control Device, Buoyancy Compensator, Compensator, Stab-jacket, Buoy-comp"The blow-up thing that helps you control your buoyancy!"
		It's simply a bag that can be inflated or deflated depending on buoyancy requirements during descent, your neoprene exposure suit, and any air contained within it, will be compressed, causing you to lose buoyancy.
		By adding air to your BCD, you can increase your buoyancy in a controlled manner and maintain neutral buoyancy, which is the goal while diving.
	www.ifyoudive.com /Gear/BCD?Target=_top (287 words)

	Buoyancy Control
		Pioneer Buoyancy Compensators are specifically designed for single tank use, facilitating streamlining and diving ease with the our standards-setting narrow wing design.
		The new Explorer wing is slightly narrower and longer, with a reduced buoyancy tube behind the neck to minimize heads-up trim.
		Explorer wings provide a minimalist approach to buoyancy where double aluminum 80s and a wetsuit are the rig of choice.
	www.scubasciences.com /buoyancy_control.htm (2427 words)

	Scuba Diving Safety, Buoyancy control, buoyancy compensators, breathing control, breath control, and body control - Scuba Diving Certifications, Learn how to scuba dive - Philadelphia Pa dive shops, Philadelphia Scuba Stores
		The buoyancy compensator is used for gross changes in buoyancy.
		First of all, there is your buoyancy compensator, which is what most people think about when we talk buoyancy.
		Three Buoyancy Compensators (BC's) to better buoyancy control.
	ygraine.membrane.com /enterhtml/live/scuba/safety.html (3346 words)

	Diver's Buoyancy Compensator Life Jacket
		As the buoyancy of the empty aluminum cylinder increases during submersion it terminates Self Rescue.
		The critical difference is that the steel tank remains negative and contributes to the jackets buoyancy, together the ballast and buoyant forces roll the distressed diver from the side high position into a face up position.
		80 CF Aluminum Cylinder with Tank Integrated Buoyancy
	www.watersafetyandsurvival.com /BC.htm (2307 words)

	buoyancy compensators: shuttle 840. traditional air surround buoyancy compensator.
		This buoyancy compensator has been given an updated look with buckles in special resin, all of which are now 50 mm.
		A traditional air surround buoyancy compensator of which we have already manufactured thousands in various styles.
		The single bag structure in 840 dn Nylon is certainly among the most resistant available.
	www.modulom.com /english/prodotti/shuttle_800.html (131 words)

	Untitled
		We feel that most buoyancy compensator vests on the market today are overloaded with useless material, sewing, gadgets and gizmos to the point of being absurd.
		Air Cell, BCD, BC, Buoyancy Compensator, Vest, Harness,
		Air Cell, BCD, BC, Buoyancy Compensator Vest, Harness,
	www.jetharness.com /page_templates/index.cfm?page_id=9 (1648 words)

	Cressi-sub S111 Buoyancy Compensator
		A self-expanding gussetted bladder offers increased buoyancy around the tank, allowing for proper buoyancy location whi;le swimming.
		This unique system eliminates uncomfortable buoyancy shifting and chest compression during use.
		Comfort while on the surface is insured as a result of the wraparound bladder that directs air to the lower torso area.
	divemar.com /Cressi/docs/s111.html (121 words)

	Buoyancy Compensators
		The Buoyancy Compensator provides you with the stability you need to obtain a level of weightlessness underwater so we can relax and maneuver.
		One piece of equipment that has undergone major changes over the last few years is the buoyancy compensator, or BC.
		They also provide you with a flotation device when on the surface.
	www.allamericandivers.com /buoyancy_compensators.htm (115 words)

	Cressi-Sub C-Trim System Buoyancy Compensator, Black/Blue from LeisurePro.com
		LeisurePro > Essential Equipment > Buoyancy Compensators >
		Cressi-Sub C-Trim System Buoyancy Compensator, Black/Blue from LeisurePro.com
		Its large weight carrying capacity allows proper weight distribution in the front of the BCD, plus the addition of trim weights in the rear allow for convenient fine-tuning of buoyancy.
	www.leisurepro.com /prod/CSBS114.html (248 words)

	Conte Cult say, "Beuchat BCD For Sale"
		In recent years, the buoyancy compensator market has discovered diversification and specialization.
		The jacket is constructed from rugged 840-denier nylon, with an air cell that allows 360-degree circulation around the tank and divides buoyancy between back and waist areas.
		A traditional hard backplate is made more comfortable by an adjustable lumbar support bar, and the contoured tank plate and stainless-steel cam provide complete tank security and stability.
	contecult.com /activities/diving/activities_diving_for_sale.htm (472 words)

	Buoyancy Compensators
		The J-201 Saturn buoyancy compensator has a one-year warranty effective from the date of purchase.
		The J-201 Saturn buoyancy compensator is one fine BC!
		It is ideal to use while snorkeling to give the diver added buoyancy for resting on the surface after exploring the underwater world!
	www.deep-six.com /page5.htm (250 words)

	TUSA Platina Evolution BCJ3850 Buoyancy Compensator - TUSA Platina Evolution BC - TUSA BCJ3850
		The detachable chest strap allows for further stability and elimination of that "falling of the shoulders" feel found with many buoyancy compensators.
		TUSA Platina Evolution BCJ3850 Buoyancy Compensator - TUSA Platina Evolution BC- TUSA BCJ3850
		Tusa Platina Evolution BC Tusa Platina Evolution Buoyancy Compensator
	www.divesports.com /mall/tusa_bc_bcj3850.asp (351 words)

	News
		The converter is a plastic cylinder that permits an Air 2 Alternate Inflation Regulator to be attached to a non-SCUBAPRO buoyancy compensator.
		You may bring your inflator to your dealer, trade it for a new unit, and have it fitted to your buoyancy compensator.
		Wagenseller said women began to flood the sport once manufacturers figured out that they were ignoring a key market and began making things like wetsuits and buoyancy controllers to fit the female shape.
	www.scubasciences.com /news.htm (2050 words)

	Sport Diver Magazine - DUI Buoyancy Compensator System
		The Buoyancy Compensator System (BCS) is the most comfortable BC I've ever worn.
		Sport Diver Magazine - DUI Buoyancy Compensator System
		With the BCS, DUI has incorporated the idea behind the weight harness into a high-tech, functional, modular buoyancy system.
	www.sportdiver.com /article.jsp?ID=10526 (1018 words)

	Rotational Buoyancy Compensator (VBC)
		Figure 2-14 Rotational Buoyancy Compensator locations within the Propulsion Module
		Figure 2-13 Rotational Buoyancy Compensator cross section view showing motor, lead screw, and lead weight
		Since the tubes are sealed, there is no change in the vehicle's center of buoyancy.
	www.ssl.umd.edu /Projects/RangerNBV/thesis/2-3-2-3.htm (79 words)

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