|
Match
|
Document |
Document Title |
|
|
8070139 |
Air treatment device having an audible indicator
The present invention provides a system for dispensing an air treatment and audibly indicating the dispensing and/or a change in the dispensing intensity. An exemplary audible indicator may include...
|
|
|
8016927 |
Computing device filter system
A computing device having a cooling fan, a heat exchanger, and a filter disposed between the heat exchanger and the cooling fan.
|
|
|
7922789 |
Portable gas fractionalization system
A portable gas fractionalization apparatus that provides oxygen rich air to patients is provided. The apparatus is compact, lightweight, and low-noise. The components are assembled in a housing...
|
|
|
7621978 |
Filter timer
A timer that starts a time cycle when a filter is placed into a housing is disclosed. The timer cycle will not reinitiate a new time cycle when the previously used filter is removed from the...
|
|
|
7449038 |
Methods and systems for detecting baghouse filter leaks
A method of detecting leaks in the filter bags of a baghouse filter chamber that includes determining when the filter bags have been cleaned and, during a post-cleaning period after the cleaning of...
|
|
|
7445665 |
Method for detecting the cleanliness of a filter
A method for detecting the cleanliness of a filter. The filter is disposed on an air inlet or an air outlet of a fan. The method includes the following steps. At first, outputting a rotation...
|
|
|
7393380 |
Method of guaranteeing at least one characteristic of a fluid used for producing food products
A method for guaranteeing at least one characteristic of a fluid used for producing food products. This method utilizes a system for piping and delivering the fluid, combined with means for...
|
|
|
7374600 |
System and method for excluding false back pressure faults after installation of a particulate trap filter
A method and system for preventing or minimizing false back pressure faults caused by a new particulate filter in an engine exhaust system. When a new particulate filter is placed in an engine...
|
|
|
7364610 |
Air filter sensor
The present invention is directed towards a sensor including, inter alia, a body having first and second spaced-apart apertures, the first aperture having a shape producing an audible noise upon a...
|
|
|
7306661 |
Service recording device for a filter of an extraction hood
A service recording device for a filter is particularly suited for an extraction hood with an air flow device with a variable volumetric flow. The service recording device has a counter device with...
|
|
|
7303613 |
Filter sensor and indicator for vacuum cleaners
A pressure actuated electrical switch and indicator to indicate to a user that a filter vacuum cleaner requires cleaning or replacing. In a first embodiment, the pressure actuated electrical switch...
|
|
|
7285149 |
Oil separator for vehicle air system
An oil separator for use in a vehicle air system includes a recycling valve for removing coalesced oil. The recycling valve may include a piston movable in a cylinder in response to a control air...
|
|
|
7264642 |
Exhaust gas cleaning apparatus
In an exhaust gas cleaning apparatus (30) in which a before and after differential pressure (ΔP) of a filter (32) used to trap particulates is detected for regeneration of the filter (32), a time ...
|
|
|
7261762 |
Technique for detecting and predicting air filter condition
A method and system for detecting and predicting air filter condition for an air handling system operates by determining a system resistance to air flow. The system resistance is utilized to...
|
|
|
7101420 |
Self cleaning air filtration machine and a method for using the same
Self cleaning air filtration machine and a method for using same comprising; a filter with a motor driven belt or disk or counter rotating disks that are perforated, a spray bar, a recirculation...
|
|
|
6991674 |
Monitoring arrangement for compartment air contamination
An air quality monitoring arrangement is associated with an enclosed cab of an agricultural tractor used for towing or carrying spraying implements for treating crop with substances which might be...
|
|
|
6837922 |
Air filter sensor apparatus kit and method
An air filter sensor kit and method of using the same for permitting a person to modify the filtering portion of a heating or cooling system that uses an air filter to enable the determination of...
|
|
|
6666070 |
Method for testing the integrity of DPFs
A method for inspecting the integrity of diesel exhaust filter by introducing air under pressure through one end of the structure and detecting the presence of air flow at an opposing end surface....
|
|
|
6620222 |
Computer air filtering system
A system for filtering air entering the housing of a computer. A filter is placed in the path of air entering the computer housing. A timing program is installed on the computer to keep track of...
|
|
|
6478849 |
Vapor recovery system for fuel storage tank
A vapor recovery system for a fuel storage tank. The system includes a pair of VOC adsorbent canisters that alternately recover VOC vapors from the fuel tank ullage or are regenerated. Regeneration...
|
|
|
6375725 |
End-of-service indicator including porous waveguide for respirator cartridge
An end-of-service indicator for use with a respirator cartridge, the end-of-service indicator having an optical waveguide having two extremities, one of the extremities being connected to a light...
|
|
|
6273935 |
Apparatus and method for trapping a toxic gas
An apparatus and a method for trapping a toxic gas contained in an exhaust gas from a process chamber are disclosed. In the apparatus, two toxic gas traps are provided which are connected in series...
|
|
|
6228155 |
Automatic detection and warning device of filtering net in air conditioner
An automatic detection and warning device of the filtering net of an air conditioner comprises: an outer frame installed with at least one wind inlet and at least one wind outlet, a wind groove...
|
|
|
6168645 |
Safety system for gas purifier
A gas purification system includes a gas purification unit and one or more safety devices. The gas purification unit includes an enclosure containing a purification material that exhibits an...
|
|
|
6077336 |
Air filter system
An air filter system that includes a mechanism for notifying a user when a proper filter replacement period had elapsed that further includes a scenting mechanism for scenting the air flowing...
|
|
|
5961919 |
Deodorizing and sterilizing device having catalyst deterioration sensing function
A deodorizing and disinfecting apparatus having catalyst deterioration detection function of the present invention comprises: an air supply portion for inhaling air inside; an ozone generating...
|
|
|
5917141 |
Air filter monitoring device
An air filter monitoring device that includes an attachment mechanism for attaching the monitoring device to the cover grate of an air return of an air conditioning system and a first and a second...
|
|
|
5772711 |
Filter blockage warning indicator
Apparatus for indicating when the air intake filter of portable turbines useful with spray paint guns is blocked and a method and apparatus for close coupled mounting of a pair of series connected...
|
|
|
5718822 |
Differential pressure apparatus for detecting accumulation of particulates in a filter
An apparatus and a method are provided for detecting accumulation of particulates in a fluid stream. A differential pressure switch is incorporated in the apparatus for detecting changes in...
|
|
|
5666949 |
Exposure indicator with continuous alarm signal indicating multiple conditions
An exposure indicating apparatus and indicating method includes a sensor having a property responsive to a concentration of a target species. A processing device generates a concentration signal as...
|
|
|
5498328 |
Apparatus for selectively sampling filter backwash fluid
This invention relates to monitoring apparatus and, in particular, but not exclusively to such apparatus for use in association with mains water supply facilities. A water works 10 has a water main...
|
|
|
5448677 |
Electric hair dryer with clogged filter indicator
A hair dryer has a housing including an air inlet opening and an air exit opening for passage of an air stream. The housing accommodates a blower structure and a heater, and the air inlet opening...
|
|
|
5378254 |
Filter sensing apparatus and filter therefor
An air treatment system has a removable and replaceable filter, the filter having a plastic frame, and having a multi-layer filtering medium. A filter seat has a switch located along one side in...
|
|
|
5352255 |
Noise maker for air filter
A noise maker having a housing with a hole formed on at least one surface of the housing and a weighted member in resilient relationship over the hole. The weighted member is movable between a...
|
|
|
5324344 |
System for and method to verify proper operation of a particulate emission detector
A system and method are provided to verify proper operation of and to adjust a particulate emission detector in a system including a dust collector bag house. A by-pass apparatus is provided around...
|
|
|
5294407 |
Gas purifier having pressure responsive switch as end of life detector
A gas purifier for impure gas having an end of life detector. The purifier has: A. a housing; and B. an impurity-sorbing material packed within the housing. The impurity-sorbing material has the...
|
|
|
5271750 |
Air filtration system with safety after-filter
An air filtration system with a safety after-filter that prevents contaminated air being exhausted by using a backup filter and with a mechanism to detect tears or leaks in the primary filters. The...
|
|
|
5148669 |
Detection of particulates in a hot gas flow
An apparatus is provided for ensuring that a device--such as a gas turbine--that utilizes gases and will be damaged by particles in the gases greater than the predetermined size, will not be...
|
|
|
5057821 |
Filter sentry apparatus
An apparatus including a housing secured to a filter web, wherein the housing includes a reciprocating rod directed orthogonally through the housing relative to the filter web, whereupon plugging...
|
|
|
4877422 |
Mobile aerial lift with boom structure having insulated boom section containing a clean, moisture free environment and method
A mobile aerial lift having a vehicle and a boom structure mounted on a vehicle. The boom structure has an outer extremity. A workman's basket is mounted on the outer extremity. A control is...
|
|
|
4865634 |
Multiple location negative air pressure monitor
A multiple location negative air pressure monitor is provided which enables the air pressure within a work space to be monitored at various locations throughout the work space so that the site...
|
|
|
4793836 |
Remote control for an air filtration system
A remote control and monitor panel is operatively connected to an air filtration unit located within an enclosed contaminated space. The remote control and monitoring panel is located outside of...
|
|
|
4747364 |
Flow rate threshold sensor
A flow rate sensor for use with an air filter channels air flow to energize an audible sound generator upon development of an air pressure differential within the sensor above a settable threshold,...
|
|
|
4732590 |
Flash economizer
A flash economizer employing an enclosed upright container has upper, intermediate and lower chambers for flashing pressurized blowdown effluent in the nature of moisture-contaminated steam. It is...
|
|
|
4642128 |
Smoke evacuator system with electronic control circuitry
A laser surgery smoke evacuator system is disposed within a small, thermally and acoustically insulated casing. The system includes a filter, a vacuum pump disposed downstream of the filter, an...
|
|
|
4629479 |
Multiple filter unit
A multiple filter unit in the form of a complete interchangeable unit for insertion into a motor vehicle interior ventilation duct, or into the mouth of air conditioners or into suction-producing...
|
|
|
4521230 |
Self-cleaning furnace filter construction
A self-cleaning filter construction for a forced air furnace which includes an endless belt filter which passes around and extends between two roller members. A suction system is mounted in a...
|
|
|
4365627 |
Filter-type respirator canister
An improved canister for a filter-type respirator having an end-of-service life warning device which is located in a position such that all air flowing through the canister flows through the...
|
|
|
4321070 |
Whistle to signal clogged air filter
A simple two-piece reusable plastic whistle which, when installed in an air filter, emits a shrill tone to signal a predetermined clogged condition of the filter at which time the filter should be...
|
|
|
4121199 |
Sentinel system for grease extracting ventilators
Air switches operated by ventilator pressure are used in combination with an electric circuit to cause an indicating light to be energized as long as a selected volume of air is moving through the...
|