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patents about dental air compressor

The Mitch patent (U.S. Pat. No. 4,091,638) discloses the internal cooling of a hermetically sealed rotary refrigeration compressor. The compressor is provided with a means for handling the oil and refrigerant vapor mixture to provide sufficient cooling of the motor without external precoolers and related conduits and apparatus. The oil is collected and directed so that the flow is along the internal surface of the hermetic shell so that the shell itself functions as a heat exchanger.

The Stofen patent (U.S. Pat. No. 4,311,439) discloses an dental air compressor system wherein the motor and compressor are enclosed within a substantially air-tight cabinet for maintaining quiet operation of the unit. This patent describes the use of circulating air which is routed over the compressor to maintain the temperature at a safe level.

The Pownall patent (U.S. Pat. No. 2,606,430) discloses a multiple stage air compressor system wherein the compressor is run in oil to lubricate the bearings of the compressor as well as cool the unit. A separating device is used in this system for separating the entrained oil from the compressed gas so that the outlet gas is relatively oil-free. This patent does not directly relate to the applicant's invention in that it is a large compressor system and there is no direct correlation with the type of system which is disclosed in this application.

The Schibbye patent (U.S. Pat. No. 3,945,216) also discloses a compressor which utilizes an oil separator to separate oil from the compressed refrigeration gases. The oil that is used in this system has a considerably high viscosity which is used to aid the separation function of the system.

The Yanik patent (U.S. Pat. No. 4,060,340) is presented to show the operation of a compressed air system which utilizes an outlet unloading valve. In this system the outlet pressure is removed or unloaded from the outlet of the compressor when it is stopped. A diversion valve is included to provide for blocking any connection of the compressor inlet with the discharge pressure side of the dental air compressor.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a quiet running, oil free air supply for a dental delivery system. In conjunction with this the applicants have designed a completely portable dental operating unit which utilizes modular construction. The individual components of the unit are individually housed in separate box-like containers or modules with the modules designed to interfit and lock with each other to form a work console arrangement. There can be any number of modules forming the console, but it has been found that three modules have proven to be quite satisfactory.

The reason for providing the dental delivery system in modular form is to make it easier to transport and store when patients are serviced in distant or remote locations. The operating unit when the modules are assembled is arranged so that the bottom or lowermost module has a pair of wheels while the upper unit is provided with a handle so that the dental delivery system can be easily moved, similar to the common "dollie". Thus, the dental delivery system can be used in the dentist's office and then moved out of the office to patients' homes, hospitals or business offices. This is a desirable alternative to the present permanent systems and allows the dentist to go to the patient instead of forcing the patient to travel to the dentist.

The present invention provides an oil-free, quiet running pressurized air supply for the dental delivery system. In order to provide the quiet or noise-free characteristic that is so necessary in work of this nature a hermetically sealed refrigeration compressor has been modified and converted in such a way as to provide the unique and unobvious results which are provided by the system.

The high pressure utility air system which is provided by the present invention includes the hermetically enclosed dental air compressor which contains internal collant oil and includes an auxiliary oil cooling and temperature control loop as well as a high pressure air outlet system. Because of the nature of the compressor which is used and the fact that the inlet air passes through the housing of the compressor unit, inlet air as it enters the compressor is entrained with coolant oil vapor which helps to lubricate as well as cool the internal components of the compressor. Because of the use the coolant oil in this way the outlet pressurized air contains a relatively high concentration of oil vapor which is carried with the air as it leaves the compressor unit. This air is passed through an oil coalescer or filter which filters out any contamination or particles as well as condenses the oil to collect the oil in the bottom of the coalescer. Thus, as air leaves the coalescer, it is substantially contamination and oil free. At this point, the air passes through a check-valve and a quick disconnect so that the outlet air from the compressor can be connected to other modules in the delivery system where it is stored in a suitable pressure tank or reservoir. The storage tank, in turn, is connected to a manifold for distribution to the necessary dental tools and accessories.

It is extremely important to maintain the temperature of the motor and compressor within the dental air compressor unit at a safe operating temperature so that the unit can be used for continued or intermittent use. In order to accomplish this, the applicants have provided a unique circulating system whereby the oil is drawn off of the lower portion of the housing of the compressor by a suitable motor-driven pump with the oil forced through an air cooled radiator with the cooled oil directed back into the housing of the motor compressor unit. Since the control of the temperature of the compressor is critical to the satisfactory operation of this unit, the return oil entering the compressor housing is arranged to impinge directly on the top portion of the compressor cylinder head. Since this is the area of highest temperature, it is necessary to control this temperature as well as the other heat generating areas of the unit. With the oil impinging directly on the cylinder head, the oil flows downward across the compressor and motor returning to the reservoir in the lower portion of the housing. In this way, the cooled oil absorbs the generated heat energy from the dental air compressor and motor and maintains the temperature of this unit at a safe operating level.

About the Author

The Stofen patent (U.S. Pat. No. 4,311,439) discloses an dental air compressor system wherein the motor and compressor are enclosed within a substantially air-tight cabinet for maintaining quiet operation of the unit. This patent describes the use of circulating air which is routed over the compressor to maintain the temperature at a safe level.

1/4 Inch Pressure Gauge Air Filter Regulator Compressor#OT852 $6.07 Air Filter Regulator Compressor 1/4 Inch Pressure Gauge

Air Suspension Compressor Viair Air Suspension Compressor 35030 $192.8 VIAIR 350C AIR COMPRESSOR, SILVER, SOLD INDIVIDUALLY -- 17 amps maximum amp draw; 150 maximum psi; 1.17 cfm; 12 volts DC power; 100 percent duty cycle at 100 psi; Includes stainless steel braided leader hose with check valve and insulated wiring, vibration isolators, remote mount air filter assembly, replacement air filter elements, mounting hardware, and installation instructions; Permanent magnetic motor; Features oil-free design with stainless steel valves, gear-less direct drive motor, and automatic restart thermal overload protector; Resists dust and moisture for an added strength and durability.. Auto Parts Warehouse has extensive Viair Air Suspension Compressor catalogs.We are now offering FREE shipping on all Viair Air Suspension Compressor orders over $50.00. Our secure viair air suspension compressor catalog is available every hour of everyday. Shop with confidence for all your viair air suspension compressor needs. Viair Air Suspension Compressor are In Stock and available today. Save up to 60% off dealer price on your next Viair Air Suspension Compressor purchase. Our online catalog contains a wide selection of the OEM and aftermarket parts you need at unbeatable prices

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Air Compressor Kit $299.99 Air Compressor Kit;

Air Compressor $50.99 Air Compressor. Standard Duty. Max Air Pressure 130 PSI. 18 Amps.

Compact On-Board Air Compressor Kit by ARB for Jeep $161.99 Ideal for competition vehicles;Light weight and quick installing design;Fully sealed components;Kit includes 12 volt compressor, complete wiring loom with air locker solenoid plug-in contacts, switches, air filter, mounting hardware, and comprehensive photo-illustrated installation guide. Compact On-Board Air Compressor Kit by ARB for Jeep

Compact On-Board Air Compressor Kit by ARB $161.99 Ideal for competition vehicles;Light weight and quick installing design;Fully sealed components;Kit includes 12 volt compressor, complete wiring loom with air locker solenoid plug-in contacts, switches, air filter, mounting hardware, and comprehensive photo-illustrated installation guide.

Sprint Jet Compressor sprint jet compressor $218.99 The Sprint Jet is the ideal compressor for the occasional and professional artist doing general airbrush applications. It?s powerful, compact, reliable, and quiet. A zero-maintenance, oil-less piston air compressor, the Sprint Jet uses a powerful 1/6 hp. motor that provides working pressure from 1 to 35 psi. Other features include:Moisture filter to prevent pulsationMounted air-pressure gaugeBleed valve airflow adjustment to lower air pressureHigh-strength polyurethane hose that fits Iwata airbrushesThe Sprint Jet measures 10 in. x 7 in. x 6 in.

WEN 6-gallon 2HP Horizontal Tank Air Compressor $259.84 This 6 gallon horizontal tank air compressor is the workhorse in the compressor line. The two wheels allow for easy movement to required locations and the 2HP motor provides the air need for most applications.Brand: WENName: WEN 6 Gallon 2 HP Horizontal Tank Air CompressorMaterials: Metal, plasticModel: 2276Power options: 110-120V ACWeight: 53.8 poundsColor: BlueHorse Power: 2 HP Oil lubricated pump for long lifeAir pressure setting at 85 to 125 PSI (maximum pressureMetal air filterThermal overload protectionTank pressure and air regulator gauges4.2 CFM air delivery at 40 PSI, 3.2 CRM air delivery at 90 PSIDimensions: 23 inches high x 22.75 inches long x 11.5 inches wide

Resun ACO-012 Electromagnetic Air Compressor $168.42 Resun ACO-012 Electromagnetic Air Compressor

Volcano Air Compressor Inflator / Deflator $228.57 Ideal for air brushing, cleaning and inflating tires, rubber boats, air mattresses, sports balls and more. Maintenance free oil-less design. 100% duty cycle. Durable, extremely quiet induction motor. Balanced for smooth, low vibration operation. Stainless steel flapper valve. Intake air filter. Built-in carry handle. Four nozzles, extra fitting and extra coil hose included. AC100-120V-60Hz. 1.0 Amperage. 50 PSI max pressure. 3.5 kilograms.

VIAIR 92619 Air Filter Element Set of 5 $20.24 VIAIR replacement air filter elements are manufactured to provide years of service to your compressor. A filter element allows air to be pumped cleanly and efficiently which keeps your compressor and air tools running smoothly. These VIAIR replacement air filter elements are also simple to replace and economical

VIAIR 35030 350C Air Compressor Kit $233.93 350C is the smallest continuous duty cycle compressor in lineup but are capable of putting out 1.48 CFM at zero PSI head pressure. They operate using low amp draw so they re versatile for many mobile pneumatic applications. Features include a standard 1/4 stainless steel braided leader hose with check valve and insulated wiring for simple installation. Nonadjustable pressure switch when used with an air tank. 12volt. Duty Cycle: 100 100 PSI. Max Working Pressure: 150 PSI. Max Amp Draw: 19 Amps. 1/4 NPT (Nickel Plated) Intake Port. Vibration Isolators. Mounting Hardware. Remote mount air filter assembly. Two replacement air filter elements. Stainless steel braided leader hose. Check Valve.

Silentaire Scorpion I Compressor $418.11 This Silentaire scorpion I compressor features an automatic shutoff feature that reduces noise, and minimizes motor wear. This compressor includes a trap and filter that eliminates moisture buildup in the air hose.Piston: Single pistonPressure: Up to 30 pounds per square inchAir flow: 0.55 cubic feet per minute at maximum pounds per square inchMeasurements: 8 inches x 8.75 inches x 6 inchesIncludes: Coiled plastic air hose

MABIS MiniComp Compressor Nebulizer Kit $51.99 0% 1 Each 3 lb Maximum 40126000 5 Year Attractive, compact design Easy, one-button operation makes it great for children and adults Non-slip pads ensure that the compressor will rest securely on any flat surface Latex Free Product MiniComp Compressor Nebulizer Zippered Canvas Tote Bag Compressor 5 x Air Filter Mouthpiece Tubing Guidebook in English and Spanish MiniComp Compressor Nebulizer Kit is effective and efficient. The compressor's piston pump is built for years of reliable treatments. Lightweight pump weighs just over 3 lb. Design features a built-in handle for easy carrying. Kit includes zippered canvas tote bag, detailed guidebook in English and Spanish, compressor, nebulizer, mouthpiece, tubing and five air filters. MABIS MABIS Healthcare MiniComp MiniComp Compressor Nebulizer Kit Nebulizer Kit No White www.mabis.net

Air Compressor Mounting Bracket $72.99 Air Compressor Mounting Bracket. For Use with BellyUp Skid Plate. Includes Hardware.

SIMAIR Gold Pro IN2000 Air Compressor each $295.36 Quiet, durable and reliable, this high-quality 1/6 HP oil-free twin cylinder compressor has built-in cooling ducts, safety valves, and an auto shut-off feature that prevents overheating. It has a maximum pressure of 80 psi with a 28 LPM airflow. A moisture filter/air pressure gauge and regulator is included, as well as a 10 ft. Cobra coiled airline, a 10 ft. braided airline, an airbrush stand, and 4 outlet thread adaptors. Multi-outlet kits are available allowing attachment of more than one airbrush (suitable for simultaneous operation of two airbrushes). Please note: one 10 ft. airline is required for each additional airbrush.

Reliamed Compressor Nebulizer $30.02 Features of the Reliamed Compressor Nebulizer: For the successful treatment of asthma, allergies and other respiratory disorders Creates a stream of air that travels through the clear tube to the nebulizer, which converts medication into an aerosol mist for easy inhalation 5-mL medication capacity. Operable up to a 45 degree angle. Compact and lightweight. Easy-to-use, one-button operation. Only uses ReliaMed(r) Air Filter. Single-patient use. Ideal for all ages. Includes piston-style compressor, nebulizer, 7' tubing, angled mouthpiece, five filters, and detailed guidebook in English and Spanish. Three-year warranty.

VIAIR 92C Compressor Kit with External Check Valve & Intake Filter $64.99 92C comes with a pre-installed check valve installed at the compressor head, a direct mount replaceable air filter element, and regular four-corner mounting pattern for simple mounting. Can be used for many different applications where an ultra compact co

Silentaire Scorpion II Compressor $498.91 This Silentaire Scorpion II compressor features an automatic shutoff feature which reduces noise, and minimizes motor wear. This compressor also features a trap and filter, which eliminates moisture buildup in the hose.Measures: 9.5 inches x 9.5 inches x 4.5 inchesIncludes: Coiled plastic air hose, and airbrush holder with table clampPistons: Double pistonCapability: Up to 55 pounds per square inch

Air Compressor with Light $25.99 300 PSI, 12 V Compressor with Light

Ingersoll Rand IRT46821567 Start Up Kit for Air Compressor $162.16 The purchase of an IR start up kit increases the warranty on the air compressor pump to two years. Each start up kit includes enough oil and air filter elements for the first year of operation. Purchase of Start Up kit increases pump warranty to 2 years. Includes oil and air filter elements. Dimension: 10 W x 20 L x 7 H.

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497C Chrome Compressor Kit by VIAIR $439.99 Viair 497C CE Spec Compressor Kit;12-volt; Duty Cycle: 100% @ 150 PSI; Max Working Pressure: 150 PSI; Max Amp Draw: 35 Amps;1/2 in. NPT Intake Port;Includes; Vibration Isolators; Mounting Hardware; Remote mount air filter assembly; Two replacement air fil

82L/min Hailea ACO-328 Electromagnetic Air Compressor $84.74 Hailea 82L/min Electromagnetic air compressor