US585188A - Screen attachment for suction or exhaust fans - Google Patents

Screen attachment for suction or exhaust fans Download PDF

Info

Publication number
US585188A
US585188A US585188DA US585188A US 585188 A US585188 A US 585188A US 585188D A US585188D A US 585188DA US 585188 A US585188 A US 585188A
Authority
US
United States
Prior art keywords
fan
suction
screen
attachment
exhaust fans
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US585188A publication Critical patent/US585188A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/14Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes

Description

(No Model.)

M. R. DAVIS. SCREEN ATTACHMENT FOR SUCTION 0R EXHAUST FANS.

No. 585,188. Patented June 29,1897.

7 I l I l lgacbir UNITED STATES MICAJAH R. DAVIS,

OF BELLS, TEXAS.

SCREEN ATTACHMENT FOR SUCTION OR EXHAUST FANS.

SPECIFICATION forming part of Letters Patent No. 585,188, dated June 29, 1897.

Application filed June 27, 1894. Serial No. 615,859- (No model.)

To all whom it nuty concern:

Be it known that I, MIOAJAH R. DAVIS, a citizen of the United States, residing at Bells, in the county of Grayson and State of Texas, have invented a new and useful Screen Attachment for Suction or Exhaust Fans, of which the following is a specification.

The invention relates to a screen attachment for suction or exhaust fans.

This object of the present invention is to provide a screen attachment for suction or exhaust fans adapted to be arranged-inside of the fan-casing, directly opposite the inlet or suction opening thereof, for the purpose of protecting the fan or fan-wheel against breakage from rocks, chips of wood or metal, &c., contained in the material that the fan may be used to handle; but the invention is more especially intended for use in connection with exhaust or suction fans that are employed to handle and distribute seed-cotton, and in this use prevents damage to delicate materials, such as seed-cottomwhich is ordinarily greatly damaged in pneumatic cotton-handling apparatus by coming in direct contact with the fan-blades,which crack or hull the seeds to some extent, and being afterward fed to the gin such seed-hulls are carried by the ginsaws through the ribs of the gin-stand, and are thus left in the lint-cotton,which greatly depreciates the value of the cotton.

To this end the invention therefore contemplates an improved attachment of the character noted that adapts a suction or exhaust fan for handling fibrous substances without injury therefrom or thereto, and is therefore particularly intended for use in con nection with such apparatus as set forth in my former patent, No. 506,771. 1

' \Vith these and other objects in view,which will readily appear as the nature of the invention is better understood, the same consists inthe novel construction, combination, and arrangement of parts hereinafter more fully described, illustrated, and claimed.

In the accompanying drawings, Figure 1 is a vertical sectional view of an exhaust or suction fan equipped with the herein -described improvement. Fig. 2 is a detail sectional view on the line 0000 of Fig. 1. Figs. 3, 4, and 5 illustrate different forms of the screen attachment as adapted for different classes of work.

Referring to the accompanying drawings, 1 designates the circular fan-casing of an ordinary exhaust or suction fan of that class employed for handling cotton and the like, and said fan-casing is provided at one side with the central inlet or suction opening 2 and also with the usual tangential outletneck 3. The fan casing 1 accommodates therein the ordinary rotary fan 4, mounted on the transverse fan-shaft 5, that extends through the side of the casing opposite to the opening 2 and is journaled in suitable bearing-supports 6, arranged at one side of the fan-casing. The inner end of the fan-shaft 5 projects to a point near the opening 2 and, as is common in this class of fans, is unsupported at this end, so as not to interfere with the free inlet of the materials or substances drawn into and expelled from the fan-casing by the fan. The said inner end of the fanshaft 5 is adapted to have removably attached thereon the circular screen attachment 7, that allows a free passage of air therethrough to the fan,while at the same time serving to intercept foreign substances or other matter which it is undesirable to have passed to the fan-blades. The said circular screen attachment 7 is provided with a circular screenframe 8, that consists of a central hub 9, a radial series of flat brace-arms 10, extended integrally from said hub, and an integral rim 11, connecting the outer ends of said arms 10. The said hub 9 of the circular screenframe 8 is adapted to receive in the threaded opening therein the fastening set-screw 12, that is adapted to impinge on the shaft 5, so as to hold the attachment fast thereto for rotation therewith.

A screen disk 13 is soldered or otherwise permanently fastened to one side of the frame 8, so as to be disposed directly opposite and adjacent to the inlet or suction opening 2 of the fan-casing.

When the screen attachment is properly adjusted in position on the fan-shaft, the pe ripheral rim thereof is adapted to rest directly againstthe side edges of the blades of the fan 4, so that the fan itself will form a brace for the attachment, and the screen-disk 13,which may be of wire-netting or any suitable screen material, is arranged on what might be properly termed the outer side of the screen 8, so that any strain placed on the screen by heavy materials coming in contact therewith will be withstood by the Hat brace-arms 10, which serve to hold the screen-disk to its shape and strengthen the entire attachment.

In operation it will of course be understood that the fan creates a suction within the fancasing by driving or expelling the air out through the outlet-neck 3. This produces a partial vacuum at the center of the fan, so that the air will rush through the inlet or suetion opening 2 and will carry into the fancasing the materials handled by the fan. By reason of disposing the screen attachment directly at one side of the center of the fan and opposite the inlet or suction opening the incoming air will necessarily pass through the screen to the fan,while any material carried in suspension will be intercepted by and lodged against the screen, and such material is passed off: the periphery of the screen by centrifugal force and will be carried along the walls of the casing out to the neck 3.

As illustrated in Fig. 3 of the drawings, the screen attachment is shown as perfectly flat for ordinary purposes, while in Figs. 1 and 5 of the drawings the forms X and Y, respectively, are illustrated as being conical in shape to provide for retarding or accelerating the centrifugal action of the screen attachment in directing the materials that lodge thereon against the walls of the fan-casin g as the particular character of the work may de- In an attachment for suction or exhaust fans, the combination of a circular metallic screen-frame adapted to be detachably secured to the fan-shaft at one side of the fan directly opposite the inlet-opening of the fancasing, and consisting of a central attachinghub, a series of radial flat brace-arms extended integrally from one end of the hub, and a circular flat rim integrally connecting the outer ends of the brace-arms and adapted to rest directly against the side edges of the blades of the fan, and a screen-disk secured fiat against one side of the brace-arms and the rim of said screen-frame, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.

illlOA-TAII R. DAVIS. \Vitnesses:

J. \VA'rsoN, S. W. PORTER.

US585188D Screen attachment for suction or exhaust fans Expired - Lifetime US585188A (en)

Publications (1)

Publication Number Publication Date
US585188A true US585188A (en) 1897-06-29

Family

ID=2653858

Family Applications (1)

Application Number Title Priority Date Filing Date
US585188D Expired - Lifetime US585188A (en) Screen attachment for suction or exhaust fans

Country Status (1)

Country Link
US (1) US585188A (en)

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437138A (en) * 1945-12-10 1948-03-02 Frank H Theis Pneumatic grain loader
US2601907A (en) * 1949-09-22 1952-07-01 Pioneer Gen E Motor Corp Rotary screen for motor assemblies
US2821984A (en) * 1954-07-15 1958-02-04 Edward L Lee Husking machine
US3126263A (en) * 1964-03-24 Gas deflecting and filtering
US3212857A (en) * 1960-05-23 1965-10-19 Buckau Wolf Maschf R Counter-current extraction apparatus
US3213857A (en) * 1963-03-15 1965-10-26 Massey Ferguson Ltd Adjustable drive and air intake for a combine fanning mill
US3260039A (en) * 1962-11-23 1966-07-12 Gen Dynamics Corp Centrifugal filter
US3439477A (en) * 1966-02-25 1969-04-22 Nat Res Dev Apparatus for gas filtration
US3538657A (en) * 1968-12-26 1970-11-10 Lawrence Macrow Gas-liquid contact apparatus
US5286163A (en) * 1990-01-19 1994-02-15 The Carborundum Company Molten metal pump with filter
US5944496A (en) * 1996-12-03 1999-08-31 Cooper; Paul V. Molten metal pump with a flexible coupling and cement-free metal-transfer conduit connection
US5951243A (en) * 1997-07-03 1999-09-14 Cooper; Paul V. Rotor bearing system for molten metal pumps
US6027685A (en) * 1997-10-15 2000-02-22 Cooper; Paul V. Flow-directing device for molten metal pump
US6303074B1 (en) 1999-05-14 2001-10-16 Paul V. Cooper Mixed flow rotor for molten metal pumping device
US6398525B1 (en) 1998-08-11 2002-06-04 Paul V. Cooper Monolithic rotor and rigid coupling
US6689310B1 (en) 2000-05-12 2004-02-10 Paul V. Cooper Molten metal degassing device and impellers therefor
US6723276B1 (en) 2000-08-28 2004-04-20 Paul V. Cooper Scrap melter and impeller
US7402276B2 (en) 2003-07-14 2008-07-22 Cooper Paul V Pump with rotating inlet
US20080213111A1 (en) * 2002-07-12 2008-09-04 Cooper Paul V System for releasing gas into molten metal
US7470392B2 (en) 2003-07-14 2008-12-30 Cooper Paul V Molten metal pump components
US7507367B2 (en) 2002-07-12 2009-03-24 Cooper Paul V Protective coatings for molten metal devices
US7731891B2 (en) 2002-07-12 2010-06-08 Cooper Paul V Couplings for molten metal devices
US7906068B2 (en) 2003-07-14 2011-03-15 Cooper Paul V Support post system for molten metal pump
US20110135457A1 (en) * 2009-09-30 2011-06-09 Cooper Paul V Molten metal pump rotor
US8337746B2 (en) 2007-06-21 2012-12-25 Cooper Paul V Transferring molten metal from one structure to another
US8361379B2 (en) 2002-07-12 2013-01-29 Cooper Paul V Gas transfer foot
US8366993B2 (en) 2007-06-21 2013-02-05 Cooper Paul V System and method for degassing molten metal
US8444911B2 (en) 2009-08-07 2013-05-21 Paul V. Cooper Shaft and post tensioning device
US8449814B2 (en) 2009-08-07 2013-05-28 Paul V. Cooper Systems and methods for melting scrap metal
US8524146B2 (en) 2009-08-07 2013-09-03 Paul V. Cooper Rotary degassers and components therefor
US8535603B2 (en) 2009-08-07 2013-09-17 Paul V. Cooper Rotary degasser and rotor therefor
US8613884B2 (en) 2007-06-21 2013-12-24 Paul V. Cooper Launder transfer insert and system
WO2014031637A2 (en) 2012-08-23 2014-02-27 Honda Motor Co., Ltd. A cooling device for use with engines
US8714914B2 (en) 2009-09-08 2014-05-06 Paul V. Cooper Molten metal pump filter
US9011761B2 (en) 2013-03-14 2015-04-21 Paul V. Cooper Ladle with transfer conduit
US9108244B2 (en) 2009-09-09 2015-08-18 Paul V. Cooper Immersion heater for molten metal
US9156087B2 (en) 2007-06-21 2015-10-13 Molten Metal Equipment Innovations, Llc Molten metal transfer system and rotor
US9205490B2 (en) 2007-06-21 2015-12-08 Molten Metal Equipment Innovations, Llc Transfer well system and method for making same
US9410744B2 (en) 2010-05-12 2016-08-09 Molten Metal Equipment Innovations, Llc Vessel transfer insert and system
US9409232B2 (en) 2007-06-21 2016-08-09 Molten Metal Equipment Innovations, Llc Molten metal transfer vessel and method of construction
US9643247B2 (en) 2007-06-21 2017-05-09 Molten Metal Equipment Innovations, Llc Molten metal transfer and degassing system
US9903383B2 (en) 2013-03-13 2018-02-27 Molten Metal Equipment Innovations, Llc Molten metal rotor with hardened top
US10052688B2 (en) 2013-03-15 2018-08-21 Molten Metal Equipment Innovations, Llc Transfer pump launder system
US10267314B2 (en) 2016-01-13 2019-04-23 Molten Metal Equipment Innovations, Llc Tensioned support shaft and other molten metal devices
US10428821B2 (en) 2009-08-07 2019-10-01 Molten Metal Equipment Innovations, Llc Quick submergence molten metal pump
US10465688B2 (en) 2014-07-02 2019-11-05 Molten Metal Equipment Innovations, Llc Coupling and rotor shaft for molten metal devices

Cited By (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126263A (en) * 1964-03-24 Gas deflecting and filtering
US2437138A (en) * 1945-12-10 1948-03-02 Frank H Theis Pneumatic grain loader
US2601907A (en) * 1949-09-22 1952-07-01 Pioneer Gen E Motor Corp Rotary screen for motor assemblies
US2821984A (en) * 1954-07-15 1958-02-04 Edward L Lee Husking machine
US3212857A (en) * 1960-05-23 1965-10-19 Buckau Wolf Maschf R Counter-current extraction apparatus
US3260039A (en) * 1962-11-23 1966-07-12 Gen Dynamics Corp Centrifugal filter
US3213857A (en) * 1963-03-15 1965-10-26 Massey Ferguson Ltd Adjustable drive and air intake for a combine fanning mill
US3439477A (en) * 1966-02-25 1969-04-22 Nat Res Dev Apparatus for gas filtration
US3538657A (en) * 1968-12-26 1970-11-10 Lawrence Macrow Gas-liquid contact apparatus
US5286163A (en) * 1990-01-19 1994-02-15 The Carborundum Company Molten metal pump with filter
US6345964B1 (en) 1996-12-03 2002-02-12 Paul V. Cooper Molten metal pump with metal-transfer conduit molten metal pump
US5944496A (en) * 1996-12-03 1999-08-31 Cooper; Paul V. Molten metal pump with a flexible coupling and cement-free metal-transfer conduit connection
US5951243A (en) * 1997-07-03 1999-09-14 Cooper; Paul V. Rotor bearing system for molten metal pumps
US6027685A (en) * 1997-10-15 2000-02-22 Cooper; Paul V. Flow-directing device for molten metal pump
US6398525B1 (en) 1998-08-11 2002-06-04 Paul V. Cooper Monolithic rotor and rigid coupling
US6303074B1 (en) 1999-05-14 2001-10-16 Paul V. Cooper Mixed flow rotor for molten metal pumping device
US6689310B1 (en) 2000-05-12 2004-02-10 Paul V. Cooper Molten metal degassing device and impellers therefor
US6723276B1 (en) 2000-08-28 2004-04-20 Paul V. Cooper Scrap melter and impeller
US8409495B2 (en) 2002-07-12 2013-04-02 Paul V. Cooper Rotor with inlet perimeters
US20080213111A1 (en) * 2002-07-12 2008-09-04 Cooper Paul V System for releasing gas into molten metal
US8440135B2 (en) 2002-07-12 2013-05-14 Paul V. Cooper System for releasing gas into molten metal
US7507367B2 (en) 2002-07-12 2009-03-24 Cooper Paul V Protective coatings for molten metal devices
US7731891B2 (en) 2002-07-12 2010-06-08 Cooper Paul V Couplings for molten metal devices
US8529828B2 (en) 2002-07-12 2013-09-10 Paul V. Cooper Molten metal pump components
US9435343B2 (en) 2002-07-12 2016-09-06 Molten Meal Equipment Innovations, LLC Gas-transfer foot
US8361379B2 (en) 2002-07-12 2013-01-29 Cooper Paul V Gas transfer foot
US8110141B2 (en) 2002-07-12 2012-02-07 Cooper Paul V Pump with rotating inlet
US8178037B2 (en) 2002-07-12 2012-05-15 Cooper Paul V System for releasing gas into molten metal
US9034244B2 (en) 2002-07-12 2015-05-19 Paul V. Cooper Gas-transfer foot
US8075837B2 (en) 2003-07-14 2011-12-13 Cooper Paul V Pump with rotating inlet
US7906068B2 (en) 2003-07-14 2011-03-15 Cooper Paul V Support post system for molten metal pump
US7470392B2 (en) 2003-07-14 2008-12-30 Cooper Paul V Molten metal pump components
US7402276B2 (en) 2003-07-14 2008-07-22 Cooper Paul V Pump with rotating inlet
US8501084B2 (en) 2003-07-14 2013-08-06 Paul V. Cooper Support posts for molten metal pumps
US8475708B2 (en) 2003-07-14 2013-07-02 Paul V. Cooper Support post clamps for molten metal pumps
US9409232B2 (en) 2007-06-21 2016-08-09 Molten Metal Equipment Innovations, Llc Molten metal transfer vessel and method of construction
US9643247B2 (en) 2007-06-21 2017-05-09 Molten Metal Equipment Innovations, Llc Molten metal transfer and degassing system
US9925587B2 (en) 2007-06-21 2018-03-27 Molten Metal Equipment Innovations, Llc Method of transferring molten metal from a vessel
US8366993B2 (en) 2007-06-21 2013-02-05 Cooper Paul V System and method for degassing molten metal
US9581388B2 (en) 2007-06-21 2017-02-28 Molten Metal Equipment Innovations, Llc Vessel transfer insert and system
US8613884B2 (en) 2007-06-21 2013-12-24 Paul V. Cooper Launder transfer insert and system
US10458708B2 (en) 2007-06-21 2019-10-29 Molten Metal Equipment Innovations, Llc Transferring molten metal from one structure to another
US9156087B2 (en) 2007-06-21 2015-10-13 Molten Metal Equipment Innovations, Llc Molten metal transfer system and rotor
US8753563B2 (en) 2007-06-21 2014-06-17 Paul V. Cooper System and method for degassing molten metal
US9566645B2 (en) 2007-06-21 2017-02-14 Molten Metal Equipment Innovations, Llc Molten metal transfer system and rotor
US9017597B2 (en) 2007-06-21 2015-04-28 Paul V. Cooper Transferring molten metal using non-gravity assist launder
US8337746B2 (en) 2007-06-21 2012-12-25 Cooper Paul V Transferring molten metal from one structure to another
US9982945B2 (en) 2007-06-21 2018-05-29 Molten Metal Equipment Innovations, Llc Molten metal transfer vessel and method of construction
US10352620B2 (en) 2007-06-21 2019-07-16 Molten Metal Equipment Innovations, Llc Transferring molten metal from one structure to another
US10345045B2 (en) 2007-06-21 2019-07-09 Molten Metal Equipment Innovations, Llc Vessel transfer insert and system
US9205490B2 (en) 2007-06-21 2015-12-08 Molten Metal Equipment Innovations, Llc Transfer well system and method for making same
US10072891B2 (en) 2007-06-21 2018-09-11 Molten Metal Equipment Innovations, Llc Transferring molten metal using non-gravity assist launder
US9862026B2 (en) 2007-06-21 2018-01-09 Molten Metal Equipment Innovations, Llc Method of forming transfer well
US10195664B2 (en) 2007-06-21 2019-02-05 Molten Metal Equipment Innovations, Llc Multi-stage impeller for molten metal
US10274256B2 (en) 2007-06-21 2019-04-30 Molten Metal Equipment Innovations, Llc Vessel transfer systems and devices
US9383140B2 (en) 2007-06-21 2016-07-05 Molten Metal Equipment Innovations, Llc Transferring molten metal from one structure to another
US9855600B2 (en) 2007-06-21 2018-01-02 Molten Metal Equipment Innovations, Llc Molten metal transfer system and rotor
US9909808B2 (en) 2007-06-21 2018-03-06 Molten Metal Equipment Innovations, Llc System and method for degassing molten metal
US9422942B2 (en) 2009-08-07 2016-08-23 Molten Metal Equipment Innovations, Llc Tension device with internal passage
US9382599B2 (en) 2009-08-07 2016-07-05 Molten Metal Equipment Innovations, Llc Rotary degasser and rotor therefor
US9464636B2 (en) 2009-08-07 2016-10-11 Molten Metal Equipment Innovations, Llc Tension device graphite component used in molten metal
US9470239B2 (en) 2009-08-07 2016-10-18 Molten Metal Equipment Innovations, Llc Threaded tensioning device
US9377028B2 (en) 2009-08-07 2016-06-28 Molten Metal Equipment Innovations, Llc Tensioning device extending beyond component
US9506129B2 (en) 2009-08-07 2016-11-29 Molten Metal Equipment Innovations, Llc Rotary degasser and rotor therefor
US9080577B2 (en) 2009-08-07 2015-07-14 Paul V. Cooper Shaft and post tensioning device
US10428821B2 (en) 2009-08-07 2019-10-01 Molten Metal Equipment Innovations, Llc Quick submergence molten metal pump
US8535603B2 (en) 2009-08-07 2013-09-17 Paul V. Cooper Rotary degasser and rotor therefor
US8524146B2 (en) 2009-08-07 2013-09-03 Paul V. Cooper Rotary degassers and components therefor
US8444911B2 (en) 2009-08-07 2013-05-21 Paul V. Cooper Shaft and post tensioning device
US9328615B2 (en) 2009-08-07 2016-05-03 Molten Metal Equipment Innovations, Llc Rotary degassers and components therefor
US8449814B2 (en) 2009-08-07 2013-05-28 Paul V. Cooper Systems and methods for melting scrap metal
US9657578B2 (en) 2009-08-07 2017-05-23 Molten Metal Equipment Innovations, Llc Rotary degassers and components therefor
US8714914B2 (en) 2009-09-08 2014-05-06 Paul V. Cooper Molten metal pump filter
US9108244B2 (en) 2009-09-09 2015-08-18 Paul V. Cooper Immersion heater for molten metal
US10309725B2 (en) 2009-09-09 2019-06-04 Molten Metal Equipment Innovations, Llc Immersion heater for molten metal
US20110135457A1 (en) * 2009-09-30 2011-06-09 Cooper Paul V Molten metal pump rotor
US9482469B2 (en) 2010-05-12 2016-11-01 Molten Metal Equipment Innovations, Llc Vessel transfer insert and system
US9410744B2 (en) 2010-05-12 2016-08-09 Molten Metal Equipment Innovations, Llc Vessel transfer insert and system
EP2888485A4 (en) * 2012-08-23 2016-02-10 Honda Motor Co Ltd A cooling device for use with engines
WO2014031637A2 (en) 2012-08-23 2014-02-27 Honda Motor Co., Ltd. A cooling device for use with engines
US9512774B2 (en) 2012-08-23 2016-12-06 Honda Motor Co., Ltd. Cooling device for use with engines
US9903383B2 (en) 2013-03-13 2018-02-27 Molten Metal Equipment Innovations, Llc Molten metal rotor with hardened top
US10126059B2 (en) 2013-03-14 2018-11-13 Molten Metal Equipment Innovations, Llc Controlled molten metal flow from transfer vessel
US9011761B2 (en) 2013-03-14 2015-04-21 Paul V. Cooper Ladle with transfer conduit
US10302361B2 (en) 2013-03-14 2019-05-28 Molten Metal Equipment Innovations, Llc Transfer vessel for molten metal pumping device
US9587883B2 (en) 2013-03-14 2017-03-07 Molten Metal Equipment Innovations, Llc Ladle with transfer conduit
US10126058B2 (en) 2013-03-14 2018-11-13 Molten Metal Equipment Innovations, Llc Molten metal transferring vessel
US10322451B2 (en) 2013-03-15 2019-06-18 Molten Metal Equipment Innovations, Llc Transfer pump launder system
US10052688B2 (en) 2013-03-15 2018-08-21 Molten Metal Equipment Innovations, Llc Transfer pump launder system
US10307821B2 (en) 2013-03-15 2019-06-04 Molten Metal Equipment Innovations, Llc Transfer pump launder system
US10465688B2 (en) 2014-07-02 2019-11-05 Molten Metal Equipment Innovations, Llc Coupling and rotor shaft for molten metal devices
US10267314B2 (en) 2016-01-13 2019-04-23 Molten Metal Equipment Innovations, Llc Tensioned support shaft and other molten metal devices

Similar Documents

Publication Publication Date Title
US2542634A (en) Dust separator
US3130679A (en) Nonclogging centrifugal pump
US2726807A (en) Vacuum apparatus for water and dirt removal
US3191364A (en) Centrifugal dust separator
US2865521A (en) Bulk material truck
JP3711028B2 (en) Gas turbine engine with foreign matter removing structure
US3263909A (en) High-efficiency fan assembly for vacuum cleaner
US2160666A (en) Fan
US6264712B1 (en) Low intake restriction air precleaner
US2289474A (en) Apparatus for dust collection
GB2029567A (en) Fume exhauster device
US4382804A (en) Fluid/particle separator unit and method for separating particles from a flowing fluid
US3796511A (en) Blower
GB944376A (en) Improvements in or relating to apparatus and a process for moving material
US4201557A (en) Precleaner
CN1121189C (en) Device for separating solid or liquid particles from a stream of gas and sucking device therefor
US20050207883A1 (en) Vortex blower having helmholtz resonators and a baffle assembly
US3371782A (en) Centrifugal air classifiers
GB1501473A (en) Fans
US4441262A (en) Drier, particularly for plastic material
GB1465888A (en) Hydrocyclone
US3977811A (en) Air pump for use in dusty environment
US4820115A (en) Open impeller for centrifugal compressors
US2452274A (en) Fan having auxiliary cutoff
US2803098A (en) Grinding wheels