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

Icon_funbox Did You Know...

...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.

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 209/309 - Reciprocating and rotating


Subclass of Class 209 - Classifying, separating, and assorting solids
Definition: Flat horizontal or inclined sifters having both a shaking
No. of patents: 42
Last issue date: 04/24/2012


1    
NumberTitleIssue Date
8162148Weight filling device for small objects
A weight filling device for filling small objects comprising a vibrating feed assembly, at least two bins in a side by side orientation, and a chute assembly. The feed assembly includes feed stations having a feed tray with a large feed portion and a small feed port...
04/24/2012
7959008Method and device for screening out particles
The invention relates to a method and a device for screening first particles out of a granulate comprised of first and second particles by conveying the granulate along a first screen surface which extends outward from a vibrating device, wherein the first particles...
06/14/2011
7617938Elastic sieving technique and corresponding large-sized elastic vibration screen
An elastic sieving method and corresponding large-sized elastic vibration screen. The present invention utilizes a screening surface and a separate sieving machine. A screen mat located on the sieve box is connected to multiple small rectangular screens. While the m...
11/17/2009
7510084Material separation device and method
A material separation device for use in an internal area of a material handling system. The separation device includes a separator member with a body with a plurality of material passageways extending therethrough. The separator member includes a material exit porti...
03/31/2009
7380672Flow diverter and exhaust blower for vibrating screen separator assembly
A flow diverter and a vacuum blower for vibrating screen separator assembly. The flow diverter decelerates and increases the exposed surface of materials. The exhaust blower removes vapors from the materials. ...
06/03/2008
7380673Flow diverter and exhaust blower for vibrating screen separator assembly
A flow diverter and a vacuum blower for vibrating screen separator assembly. The flow diverter decelerates and increases the exposed surface of materials. The exhaust blower removes vapors from the materials. ...
06/03/2008
7347391Waste processing apparatus and method
The present invention includes an apparatus and method for processing solid waste products. The apparatus comprises a rotatably mounted cylindrical vessel having a first end, a second end and an interior surface, at least one end terminating in a hatch that may be o...
03/25/2008
7331469Vibratory separator with automatically adjustable beach
A vibratory separator having a basket for supporting screen apparatus for treating material, the basket pivotably mounted on a base, vibratory apparatus connected to the basket for vibrating the basket, the material forming a pool on the screen apparatus, and a beac...
02/19/2008
7278540Adjustable basket vibratory separator
A vibratory separator having a base, a basket movably mounted on the base and for supporting screen apparatus for treating material introduced into the vibratory separator, the basket on a base and pivotable with respect thereto, vibratory apparatus connected to the...
10/09/2007
7240800Vibratory sand reclaiming apparatus having normal and reject modes
An attrition mill for reclaiming foundry sand from deposited material having lumps of used foundry sand and included material includes a housing defining a chamber for receiving the lumps of used foundry sand and included material. A base is disposed within the hous...
07/10/2007
7222717Device for collecting and recycling articles directed to feeding channels
A hopper releases articles onto a selecting sieve which selects and keeps complying articles, separating them from defective and/or fragmented ones and from powders. A linear conveyor, situated downstream of the selecting sieve, receives the complying articles for s...
05/29/2007
7216767Screen basket and shale shakers
A screen mounting basket for a vibratory separator for separating components of material introduced into the basket, the vibratory separator including a collection receptacle beneath the basket, the basket including two opposed spaced-apart side walls having first e...
05/15/2007
7198156Dam basket for vibratory separators
A vibratory separator and a screen mounting basket for a vibratory separator for separating components of material introduced into the basket, the vibratory separator including a collection receptacle beneath the basket, at least one screen assembly mounted in the b...
04/03/2007
7195121Sifting device
A sifting device including a sieve box (1), which is caused to oscillate using a drive (4), as a fundamental oscillation system having essentially horizontal first transverse carriers (1.3) and a supplementary oscillation system (2), atta...
03/27/2007
7150358Shaker screen clamping and sealing assembly
An assembly for sealing a shaker screen assembly in a shaker separator includes a substantially inflexible gasket affixed to each screen support and a flexible gasket affixed to each screen support such that the screen frame rests atop the gaskets on the support aro...
12/19/2006
7093719Transportable, self-contained, recirculation, wash plant
A combination of prospecting equipment and apparatus, for the purpose of collecting precious minerals from mineral bearing sand and gravel, located in regions that are arid in nature, have little water or limited water usage, due to environmental concerns. The Wash ...
08/22/2006
7040488Screens and seals for vibratory separators
A vibratory separator having a basket for supporting screen assembly apparatus, the basket having an interior surface, vibrator apparatus connected to the basket to vibrate it and the screen assembly apparatus releasably secured thereto, seal apparatus connected to ...
05/09/2006
7025210Method and apparatus for attenuating sound from vibratory screening machines
A method of attenuating the sound emanating from a bank of a plurality of vibrating screens of a plurality of vibrating screening machines including the steps of providing a master pulse of known phase and frequency, comparing the phase and frequency of a plurality ...
04/11/2006
6976591Food-stuff physical characteristic sorting apparatus and method
A foodstuff seed sorting endless belt conveyor apparatus for sorting out premium quality seeds from a seed mixture having both premium and inferior grade seeds on the basis of seed physical characteristics develops an orbital motion that is superimposed upon the nor...
12/20/2005
6953121Vibrating screen
A vibrating screen assembly supported by springs is provided which is used to size separate rock and other material. The present invention includes increasing the natural frequency of the screen assembly by stiffening the individual screen decks of the screen assemb...
10/11/2005
6892889Screen
A screen system employs a resiliently mounted housing, a vibration generator mounted to the housing, a mounting frame fixed to the resiliently mounted housing and a support surface. This system receives a screen including a screen frame and pre-tensioned screen clot...
05/17/2005
6889846Hybrid screen
A hybrid incline/horizontal screen for separating particulate material into predetermined size fractions, the screen having multiple screen decks mounted on a frame, at least one uppermost screen deck having an inclined receiving end and a horizontal discharge end. ...
05/10/2005
6830155Vibratory screening apparatus
There is provided screen apparatus comprising side walls having a lower edge portion configured to accept tubular screen support members. An upper edge extends from the inlet end of the side walls to an apex from which a declining edge extends to the foot of the sid...
12/14/2004
6825136Filtering screens for vibratory separation equipment
A filtering screen comprises a fine woven wirecloth filtering mesh (4) disposed above a coarse woven wirecloth support mesh (2). An intermediate woven wirecloth mesh (3) is disposed between the fine woven mesh (4) and the coarse woven mes...
11/30/2004
6736269Device for collecting and recycling articles directed to feeding channels
In a device for collecting and re-cycling articles sent toward feeding channels, a selecting member is situated downstream of a station where the articles are accumulated, for receiving, in a predetermined way, the articles from the accumulation station. The selecti...
05/18/2004
6726023Method and arrangement for cleaning the screening device of a screen
The invention relates to a method and an arrangement for cleaning the screening device (2) of a screen (1). The screen (1) comprises at least said screening device (2) which has openings for the separation of particles of different sizes ...
04/27/2004
6715611Vibratory separator
A vibratory separator for separating components of material introduced to the vibratory separator, the vibratory separator in one particular aspect being a shale shaker, the vibratory separator including a basket for holding screening apparatus, the basket having tw...
04/06/2004
6581781Vibrator separator screens
A screen assembly for a vibratory shaker, the screen assembly including at least two screening members, and the at least two screen members connected by sewing material. In one aspect of such a screen assembly the sewing material is thread in a stitch pat...
06/24/2003
6508364Sieving device
A sieving device and the operation of a sieving device are proposed. The sieving device has a supporting frame which can be made to vibrate and a vibration frame which is held so as to be able to vibrate freely in relation to said supporting frame. A simp...
01/21/2003
6439391Vibratory separator with material heater
A vibratory separator apparatus for separating components from a fluid material stream fed to the vibratory separator apparatus, the vibratory separator apparatus, in certain aspects, having separator apparatus for separating components of the fluid mater...
08/27/2002
6412644Vibratory separator
A vibratory separator for separating components of material introduced to the vibratory separator, the vibratory separator including a basket for holding screening apparatus, the basket having two sides spaced-apart by a first end at which the material is...
07/02/2002
6375011Vibrating conveyor and method for conveying silicon fragments
A method for conveying silicon fragments has the silicon fragments being conveyed over a conveyor surface, which is made from hyperpure silicon. There is a vibrating conveyor, and during the conveying, the sharp edges of the silicon fragments are rounded ...
04/23/2002
6286687Method and device for vibration screening
Method and apparatus for the vibration screening of coating powders in particular, wherein a screening cloth is used, which is supported loosely on a screen frame and fixed to a clamping frame, wherein the screening cloth may additionally be supported on ...
09/11/2001
6269954Seal for adjoining screen assemblies in vibrating machinery
A seal for adjoining screen assemblies for vibrating machinery, where each screen assembly has a frame. The frame includes a planar surface. A perforated plate with a plurality of screen cloths thereon is secured to the planar surface of the frame. A firs...
08/07/2001
6267310Process for separating particles of cohesive material according to size
A process for separating particles of a cohesive form of a polydisperse compound or composition comprising nevirapine, nevirapine hemihydrate, mexiletine or mexiletine hydrochloride according to size is disclosed which comprises milling and sizing the par...
07/31/2001
5887724Methods of treating bi-modal fly ash to remove carbon
A method of reducing the carbon content of a dry bi-modal fly ash includes subjecting the bi-modal fly ash to dry vibrating screen separation into a carbon rich component and a carbon depleted fly ash component with the carbon depleted fly ash component b...
03/30/1999
4797204Automatic particle-size analyzer with divided drum
An apparatus for automatic screen analysis of a granular material in which the material is screened from a polygonal drum which is divided crosswise into at least two chambers by a transverse partition. A first chamber has progressively coarser screens on...
01/10/1989
4702826Screen cleaner for particle size analyzer
Disclosed is a device for sequentially cleaning the screens of a particle size analyzer of the indexing drum type, as each screen moves out of the screening position. The cleaning member is preferably removed from the drum during each screening step. The ...
10/27/1987
4601819Sorting apparatus for fiber stock, especially for manufacturing paper
The sorting apparatus contains a screen forming at least part of a circular-cylindrical surface and a rotor having a rotor shaft which is coaxially located at the lengthwise axis defined by the circular-cylindrical surface. The rotor possesses clearing bl...
07/22/1986
4107035Three-plane balance gyro sifter
A sifting and screening mechanism dynamically balanced in all three planes including a base, a screen assembly with an inclined screened frame having a screening surface with an inlet end and an outlet end, a linear bearing, a resilient mount assembly sup...
08/15/1978
1    
 
Sign InRegister
Username  
Password   
forgot password?