| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 209274000 | Concave and convex sifters | 12 |
| 209275000 | Reciprocating | 12 |
| 20090321328 | Method and apparatus for screening - A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape. | 12-31-2009 |
| 20100258481 | SIFTING SCREEN - A screen for sifting particles of a material being processed. The screen includes a portion having an apertured matrix. The matrix is defined by intersecting, generally elastic material segments. A frame extends around at least a portion of a periphery of the matrix. The frame can mount hooks for attaching the sifting screen to a shaker bed which vibrates the matrix. The elasticity of the matrix renders the matrix flexible and stretchable so that the screen portion of the sifting screen can be attached to a shaker bed. | 10-14-2010 |
| 20130098810 | METHOD AND APPARATUSES FOR SCREENING - A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape. | 04-25-2013 |
| 20130175205 | METHOD AND APPARATUSES FOR SCREENING - A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape. | 07-11-2013 |
| 20130313168 | INJECTION MOLDED SCREENING APPARATUSES AND METHODS - Screening members, screening assemblies, methods for fabricating screening members and assemblies and methods for screening materials are provided for vibratory screening machines that incorporate the use of injection molded materials. Use of injection molded screen elements provide, inter alia, for: varying screening surface configurations; fast and relatively simple screen assembly fabrication; and a combination of outstanding screen assembly mechanical and electrical properties, including toughness, wear and chemical resistance. Embodiments of the present invention use a thermoplastic injection molded material. | 11-28-2013 |
| 20140083913 | METHOD OF MAKING A SHAKER SCREEN - A shaker screen for attachment to a bed of a shaker includes a screen frame having at least one mesh screen attached to the top side of the screen frame, wherein the screen frame is preferentially bowed prior to attaching the mesh screen to the screen frame. | 03-27-2014 |
| 20140102952 | METHOD AND APPARATUSES FOR SCREENING - A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape. | 04-17-2014 |
| 20150041371 | METHOD AND APPARATUSES FOR SCREENING - A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape. | 02-12-2015 |
| 20150122707 | METHOD AND APPARATUSES FOR SCREENING - A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape. | 05-07-2015 |
| 20150367383 | METHOD AND APPARATUSES FOR SCREENING - A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape. | 12-24-2015 |
| 20160250662 | METHOD AND APPARATUSES FOR SCREENING | 09-01-2016 |
| 209276000 | With agitators | 1 |
| 20160030980 | METHOD AND APPARATUSES FOR SCREENING - A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape. | 02-04-2016 |
