U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6637829

Decorative Jeweled Wheel Cover

An improved wheel is provided wherein decorative items such as gem stones are embedded in either the wheel surface, a special mounting section attached to the wheel surface, or to a spoke strap that wraps around each spoke and positions embedded gem stones on the outside surface of the spoke.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 73/28.06 - Fractionalizing


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the particles are distributed on
No. of patents: 16
Last issue date: 02/26/2008


NumberTitleIssue Date
7334453Modular particulate sampler
A gas sampler includes an impact disc for removing larger particles from a gas flow drawn by a pump and a filter for capturing smaller particles, also positioned in the flow path. The sampler is conveniently dissembled and reassembled to remove and replace the impac...
02/26/2008
7325465Particle matter sampling method and sampler with a virtual impactor particle concentrator
An apparatus for sampling ambient air to obtain coarse and fine fractions of particulate matter includes a single acceleration tube and a collection tube coaxially arranged along a central axis with a gap between facing distal ends thereof within a range of d/D1
02/05/2008
7082811Cascade impactor with individually driven impactor plates
A cascade impactor apparatus has a series of vertically stacked impactor housing sections. Each of the impactor housing sections has an upper portion that supports a motor for driving an impactor plate that is positioned below a nozzle through which flow passes. Eac...
08/01/2006
7073402Air sampler with parallel impactors
An air sampler is designed for a predetermined flow rate. The air flow is admitted to at least two impactors operating in parallel. Preferably the inlet nozzles and the outlet orifices of each impactor are sized to achieve predetermined cut-off sizes of particles; p...
07/11/2006
6903818Low noise intracavity laser particle counter
An optical particle counter has a gain-apertured laser cavity producing laser light, an inlet jet providing fluid flow into a particle detecting region within the laser cavity, the inlet jet having an inlet jet orifice; a detection optics assembly located to collect...
06/07/2005
6594001Pollen grain-counting method and pollen grain counter
Provided is a method and apparatus which enable only pollen existing in the atmosphere to be automatically quantified. According to the method and apparatus, particles other than those substantially smaller than pollen grains, contained in a given amount ...
07/15/2003
5983704Method of measuring and analyzing contamination particles generated during the manufacture of semiconductor devices
An apparatus and a method of measuring contamination particles generated during manufacturing of semiconductor devices and an analysis method therefor are described. The apparatus for measuring contamination particles has a regulator for controlling the f...
11/16/1999
5425263Method for inspecting an article for concealed substances
There is provided an assembly for preferentially separating and collecting particles that are gathered from the surface of an article such as an item of baggage. The assembly features an impactor and a suction anvil that is displaceable from a collection ...
06/20/1995
4764186Particle impactor assembly for size selective high volume air sampler
Air containing entrained particulate matter is directed through a plurality of parallel, narrow, vertically oriented impactor slots of an inlet element toward an adjacently located, relatively large, dust impaction surface preferably covered with an adhes...
08/16/1988
4660408Proportional exhaust sampler system and control means
A testing apparatus for measuring the particulate and/or gaseous content of an exhaust source for use in evaluating the exhaust emissions of internal combustion engine provides both fixed flow and proportional flow control of the diluted particulate conta...
04/28/1987
4590792Microanalysis particle sampler
Apparatus of the invention enables gas entrained particulate collection and transfer of collected particulate into position for scanning by a scanning electron microscope; and it comprises: (a) structure forming a cavity and including a nozzle having an orific...
05/27/1986
4321822Impactor apparatus
An impactor apparatus operable to collect particles for subsequent gravimetric or chemical analysis. The apparatus has a first assembly for supporting particle impaction means and a second nozzle assembly releasably mounted on the first assembly having no...
03/30/1982
4189937Bounceless high pressure drop cascade impactor and a method for determining particle size distribution of an aerosol
This invention is directed to a high pressure drop cascade impactor wherein the particles do not bounce from the collection plate; to a method for designing said impactor; a method for calculating and determining the particle size distribution of an aeros...
02/26/1980
4133202Multiple nozzle single stage impactor
A single stage impactor having a plurality of different sized nozzles that predicate a particle collection efficiency curve that approximates a predetermined curve. The impactor has a particle collection plate mounted on a casing having a passage connecte...
01/09/1979
3983743Apparatus and method for the analysis of a particle-laden gas
An apparatus for the collection of particles from a gas containing particles which comprises a first means for directing the flow of said gas toward a second means for collection of at least a portion of said particles by the process of impaction, the fir...
10/05/1976
3938366Aerosol analyzer
An apparatus for separating particles from a fluid comprising a housing, means for flowing a fluid through said housing, a plurality of parallel perforated plates supported in said housing spaced from one another in the direction of fluid flow, the plates...
02/17/1976
 
Sign InRegister
Username  
Password   
forgot password?