US3799404A - Devices for feeding particulate products such as powdered or granular materials from a container - Google Patents
Devices for feeding particulate products such as powdered or granular materials from a container Download PDFInfo
- Publication number
- US3799404A US3799404A US00264692A US26469272A US3799404A US 3799404 A US3799404 A US 3799404A US 00264692 A US00264692 A US 00264692A US 26469272 A US26469272 A US 26469272A US 3799404 A US3799404 A US 3799404A
- Authority
- US
- United States
- Prior art keywords
- container
- vertical container
- pedestal
- channel
- particulate products
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
Definitions
- ABSTRACT This invention relates to devices for feeding particul l Foreign pp y Data late products such as powdered or granular materials June 29, 1971 France 71.23792 fr m a n n n the object of t inv n i n i o prevent or minimize any tendency for the product to [52] US. Cl. 222/168, 222/413 become packed to form bridges that considerably [51] Int. Cl. 867d 5/00 hamper their removal.
- At least one [58] Field of Search 222/ 169, 172,239,413, part of the container is mounted for rotation on a 222/386, 382, 168, 345; 259/30, 33 smooth surface ofa fixed pedestal.
- This pedestal has a discharge vessel for the product extending substan- [56] References Cited tially diametrically to the container. Conveniently this UNITED STATES PATENTS discharge channel is trough-shaped.
- this relatively complicated device requires a rake which is movable relatively to the base of the vessel to assist the lateral discharge of the product.
- the vessel is fixed and its base, which is rotatably mounted, incorporates at least one radial aperture for the discharge of the product.
- this device does not allow the outflow to be acted upon directly from the upper portion of the vessel and furthermore does not prevent the formation of bridges in the product.
- At least one part of the vessel is rotatably mounted on the smooth surface of a fixed pedestal andhaving a product discharge channel extending substantially diametrically across the vessel.
- FIG. 1 is a perspective view of one embodiment of a feeding device for powdered or granular products
- FIG. 2 is a plan view of the device shown in FIG. 1,
- FIG. 3 is an axial section through another embodiment of the device
- FIG. 4 is plan view of the device shown in FIG. 3,
- FIG. 5 is a perspective view of one method of driving the hopper and of a helical discharge member
- FIG. 6 is an elevation, partly in section, of another embodiment in which the upper portion of the hopper is fixed.
- FIGS. 1 and 2 a feeding device is shown comprising a hopper l intended to take powdered or granular product and rotatably mounted, in the direction of Arrow A, on the smooth surface 2 of a fixed pedestal 3, the product actually resting on said pedestal.
- the pedestal 3 has a channel 4 extending diametrically across the hopper l and through which the powdered or granular product can flow out when the said hopper is rotatably driven.
- the channel 4 which can take the form of a trough of appropriate circular section in the pedestal 3, is set an extraction means which is formed, in the case of FIGS. 1 and 2, by a helical spring 5 rotatably driven in the direction of the Arrow B to move the product which falls into the channel 4, in the direction of the arrow C.
- the product is then gathered up at one of the ends of the channel or trough 4.
- the edges 6, 6a of the circular channel should be as sharp as possible and the helical spring should be flush with the surface 2 of the pedestal.
- a helical member has been shown as the extraction means, it is clear that any other means, such as an endless chain or a belt, may be used.
- the hopper l Near its base, the hopper l is fitted with a flange 7 via which it rests on running and drive means, which will be described subsequently, in connection with FIG. 3, but is not shown in FIGS. 1 and 2.
- the feeding device operates in the following manner: the hopper 1 being filled with powdered or granular product, the helical spring 5 is set in motion in the direction of arrow B such that the product which has fallen into the channel 4 at the time of filling, is fed-out in the direction of arrow C.
- the channel being very narrow, a bridge would soon be formed, resulting in running empty, if the hopper l were not driven round in the direction of the arrow A, thus causing the product to tumble down and the channel 4 to be supplied.
- the product resting on the surface 2 of the pedestal 3 is to some degree planed off by channel 4 and steady extraction is thus ensured.
- the product to be extracted may be considered as a solid body rotating about an axis and whose base is being shaved, as is done with a lathe to machine the base of a cylinder.
- FIGS. 3 and 4 an embodiment of the feeder is shown in which the flange 7 similar to those of FIGS. 1 and 2, is guided by lower rollers 8 and upper rollers 9, which are rotatably mounted on brackets 10.
- the lower rollers 8 support the hopper 1 which has, in the case of FIGS. 3 and 4, a frusto-conical shape, as opposed to the cylindrical shape of that of FIGS. 1 and 2.
- the rotary drive of the hopper l and the helical member 5 is effected by a reduction-drive or a variable drive 11 including a first output shaft 12 to which is fixed a roller 13 which is in contact with the upper face of the flange 7 and produces the rotary drive of the hopper, the roller 40 being mounted free to rotate on a second output shaft 15 which is connected to the helical spring.
- This arrangement allows the hopper and the helical spring to be driven round differentially. In fact, this amounts to driving the hopper round by a few degrees per turn or number of turns of the helical spring.
- a single output shaft 16 of a reduction drive or a variable drive is used, which is connected to the helical spring 5 and to which is keyed a roller 17 bearing a projection 18 extending over a certain angle and intended to make contact with the lower face of the flange 7 to move the hopper by a fraction of a revolution when the helical spring is moved by one revolution.
- the helical spring 5 of FIGS. 3, 4 and 6 is housed in a funnel l9 and includes at its end a deaggregating member 20 and a torsion-setting device for the helix.
- a member in the form of a wire 21 (FIG. 3) or a rod of small section is placed diametrically near the surface 2 of the base pedestal 3. This wire-form member 21 moves the product round when the pressure on the wall of the hopper is lower than that on the pedestal.
- the upper portion 24 of the hopper is fixed and rests by means of support brackets 25 on a support plate 26a also bearing the pedestal 3.
- the hopper In its lower portion, the hopper has a skirt 26 which alone is driven round, in the same manner as described above, via the flange 7. In this case, a joint 27, which may be pneumatic, must be provided between the upper portion 24 of the hopper and the skirt 26.
- a device for feeding particulate products at controlled rates from a vertical container comprising a stationary pedestal having a smooth upper plane surface and a lower surface positionable on any planar supporting surface, a bottomless vertical container having a vertical axis with said vertical container being mounted for rotation of its lower end about the said vertical axis on said smooth upper plane surface of said pedestal, drive means for rotating said bottomless vertical container about said vertical axis, a troughshaped channel in said smooth upper plane surface extending transversely beneath and outwardly beyond the periphery of the lower end of said vertical container for receiving particulate products from said vertical container and means for moving particulate products in said trough-shaped channel along the length of said trough-shaped channel to be discharged from one end of said trough-shaped channel outwardly beyond the periphery of said vertical container.
- said means for moving particulate products along the length of said trough-shaped channel includes a helical spring located in said channel and having a diameter less than the depth of said channel and driving means for rotating said spring about its axis.
- the invention of claim 1 additionally including a wire-like member fixedly disposed across the bottom end of said container and extending diametrically near the upper surface of said pedestal for engaging particulate products to cause movement of the particulate products into the trough-shaped channel to insure substantially total evacuation of the particulate products from said vertical container.
- the invention of claim 1 additionally including a seal joint positioned between said pedestal and the lower end of said vertical container, said seal joint including a circular channel surrounding the lower end of said vertical container and vane means extending from the external periphery of the lower end of said vertical container into said channel to remove any particulate products from said circular channel.
- said drive means includes means for driving said container and said helical spring differentially.
- said drive means includes two drive shafts, said helical member being connected to one of said drive shafts and a roller connected to the other of said drive shafts and wherein said roller frictionally engages flange means forming a part of the vertical container for rotating said container.
- said drive means includes a single drive shaft connected to said helical spring and wheel means having a radial drive segment capable of making contact for a fraction of a revolution with flange means forming a portion of the lower end of said vertical container.
- said vertical container includes an upper portion fixedly supported and a lower portion comprising a skirt concentric with said upper portion, said skirt being rotatably mounted with respect to the upper surface of said pedestal which extends outwardly beyond said skirt.
- the invention of claim 9 additionally including a circular joint positioned between said fixed portion of said container and said rotatably mounted skirt.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Basic Packing Technique (AREA)
- Screw Conveyors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7123792A FR2143573B1 (de) | 1971-06-29 | 1971-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3799404A true US3799404A (en) | 1974-03-26 |
Family
ID=9079551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00264692A Expired - Lifetime US3799404A (en) | 1971-06-29 | 1972-06-20 | Devices for feeding particulate products such as powdered or granular materials from a container |
Country Status (7)
Country | Link |
---|---|
US (1) | US3799404A (de) |
CH (1) | CH553104A (de) |
DE (1) | DE2231497C3 (de) |
ES (1) | ES404314A1 (de) |
FR (1) | FR2143573B1 (de) |
GB (1) | GB1392879A (de) |
IT (1) | IT959281B (de) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4943830A (en) * | 1989-03-07 | 1990-07-24 | Xerox Corporation | Developer dispensing apparatus with a spring element hold down shoe mechanism |
US5058776A (en) * | 1990-03-09 | 1991-10-22 | General Motors Of Canada Limited | Apparatus for dispensing particulate material for foundry furnace relining |
US5287801A (en) * | 1991-07-31 | 1994-02-22 | Clark Gordon A | Flavoring food products |
US5385086A (en) * | 1994-06-21 | 1995-01-31 | Par-Way Group | Electrostatic assisted dry ingredient deposition apparatus |
US5613624A (en) * | 1995-06-08 | 1997-03-25 | Bohdan Automation, Inc. | Powder dispenser |
WO1998019944A1 (en) * | 1996-11-04 | 1998-05-14 | Johanson Jerry R | Hoppers with applied motion to promote flow |
US6267495B1 (en) * | 1994-10-25 | 2001-07-31 | Process Control Corporation | Blender apparatus with precision low-rate metering unit |
US10160604B2 (en) | 2013-08-30 | 2018-12-25 | Schenck Process Europe Gmbh | Metering device with storage container and discharge device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3332703A1 (de) * | 1983-09-10 | 1985-03-28 | Schwäbische Hüttenwerke GmbH, 7080 Aalen | Bunkerabzugsvorrichtung |
FR2749836B1 (fr) * | 1996-06-12 | 1998-09-18 | Imef | Perfectionnement aux silos cylindriques en forme de tours et a leur systeme d'extraction des produits stockes a l'interieur |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1298766A (en) * | 1917-05-08 | 1919-04-01 | Ralph L Morgan | Body for trucks. |
US1639370A (en) * | 1926-05-06 | 1927-08-16 | Arnold Electric Company | Dispenser |
US2409619A (en) * | 1942-10-19 | 1946-10-22 | Aro Equipment Corp | Lever gun |
US3203599A (en) * | 1963-06-17 | 1965-08-31 | Carrier Mfg Co | Metered vibratory conveyor |
US3402918A (en) * | 1966-12-20 | 1968-09-24 | Columbian Carbon | Discharge valve for rotating drum material treater |
US3648896A (en) * | 1969-07-03 | 1972-03-14 | George William Baltz | Apparatus for storing and removing silage |
US3669076A (en) * | 1970-06-24 | 1972-06-13 | Jacob B Ellis | Rotatable hopper livestock feed dispenser |
-
1971
- 1971-06-29 FR FR7123792A patent/FR2143573B1/fr not_active Expired
-
1972
- 1972-06-20 US US00264692A patent/US3799404A/en not_active Expired - Lifetime
- 1972-06-26 GB GB2988672A patent/GB1392879A/en not_active Expired
- 1972-06-27 CH CH960072A patent/CH553104A/fr not_active IP Right Cessation
- 1972-06-27 DE DE2231497A patent/DE2231497C3/de not_active Expired
- 1972-06-27 ES ES404314A patent/ES404314A1/es not_active Expired
- 1972-06-28 IT IT69098/72A patent/IT959281B/it active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1298766A (en) * | 1917-05-08 | 1919-04-01 | Ralph L Morgan | Body for trucks. |
US1639370A (en) * | 1926-05-06 | 1927-08-16 | Arnold Electric Company | Dispenser |
US2409619A (en) * | 1942-10-19 | 1946-10-22 | Aro Equipment Corp | Lever gun |
US3203599A (en) * | 1963-06-17 | 1965-08-31 | Carrier Mfg Co | Metered vibratory conveyor |
US3402918A (en) * | 1966-12-20 | 1968-09-24 | Columbian Carbon | Discharge valve for rotating drum material treater |
US3648896A (en) * | 1969-07-03 | 1972-03-14 | George William Baltz | Apparatus for storing and removing silage |
US3669076A (en) * | 1970-06-24 | 1972-06-13 | Jacob B Ellis | Rotatable hopper livestock feed dispenser |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4943830A (en) * | 1989-03-07 | 1990-07-24 | Xerox Corporation | Developer dispensing apparatus with a spring element hold down shoe mechanism |
US5058776A (en) * | 1990-03-09 | 1991-10-22 | General Motors Of Canada Limited | Apparatus for dispensing particulate material for foundry furnace relining |
US5287801A (en) * | 1991-07-31 | 1994-02-22 | Clark Gordon A | Flavoring food products |
US5385086A (en) * | 1994-06-21 | 1995-01-31 | Par-Way Group | Electrostatic assisted dry ingredient deposition apparatus |
US6267495B1 (en) * | 1994-10-25 | 2001-07-31 | Process Control Corporation | Blender apparatus with precision low-rate metering unit |
US5613624A (en) * | 1995-06-08 | 1997-03-25 | Bohdan Automation, Inc. | Powder dispenser |
WO1998019944A1 (en) * | 1996-11-04 | 1998-05-14 | Johanson Jerry R | Hoppers with applied motion to promote flow |
EP0937002A1 (de) * | 1996-11-04 | 1999-08-25 | Jerry R. Johanson | Aufgabebehälter mit passender bewegung zur beschleunigung des durchflusses |
EP0937002A4 (de) * | 1996-11-04 | 2000-01-26 | Jerry R Johanson | Aufgabebehälter mit passender bewegung zur beschleunigung des durchflusses |
AU728327B2 (en) * | 1996-11-04 | 2001-01-04 | Jerry R. Johanson | Hoppers with applied motion to promote flow |
US10160604B2 (en) | 2013-08-30 | 2018-12-25 | Schenck Process Europe Gmbh | Metering device with storage container and discharge device |
Also Published As
Publication number | Publication date |
---|---|
IT959281B (it) | 1973-11-10 |
FR2143573B1 (de) | 1977-06-03 |
CH553104A (fr) | 1974-08-30 |
FR2143573A1 (de) | 1973-02-09 |
DE2231497C3 (de) | 1975-08-21 |
DE2231497A1 (de) | 1973-01-18 |
GB1392879A (en) | 1975-05-07 |
DE2231497B2 (de) | 1975-01-02 |
ES404314A1 (es) | 1975-06-01 |
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