US3586067A - Method and apparatus for filling containers - Google Patents

Method and apparatus for filling containers Download PDF

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Publication number
US3586067A
US3586067A US830626A US3586067DA US3586067A US 3586067 A US3586067 A US 3586067A US 830626 A US830626 A US 830626A US 3586067D A US3586067D A US 3586067DA US 3586067 A US3586067 A US 3586067A
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US
United States
Prior art keywords
powder
pressure
container
chamber
densified
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
US830626A
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English (en)
Inventor
Han-Jorgen Bye-Jorgensen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SACK FILLERS Ltd
Original Assignee
SACK FILLERS Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SACK FILLERS Ltd filed Critical SACK FILLERS Ltd
Application granted granted Critical
Publication of US3586067A publication Critical patent/US3586067A/en
Anticipated expiration legal-status Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B1/18—Methods of, or means for, filling the material into the containers or receptacles for filling valve-bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
    • B65B63/02—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles
    • B65B63/028—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles by pneumatic means

Definitions

  • This invention relates to a method and apparatus for densifying or compacting powder in a chamber and then transferring it to a container such as a sack, the method being that the powder is fed to a chamber where it is first subjected to a pressure below ambient pressure and then rapidly increasing the pressure, the increase of pressure may be used to feed the densified powder to the container, the apparatus comprises a chamber having a charging opening, an evacuating and pressurizing connection, and a connection for transferring the treated powder to the container.
  • This invention relates to a method and apparatus for the purpose of densifying or compacting powders, that is to say the removal of at least some of the air or other gas entrapped in the powder, and filling containers with the powder.
  • a gas usually air
  • air becomes entrapped within the powder, which can cause difficulties in the subsequent handling of the powder.
  • the powder is introduced into a flexible bag or sack, if no means are provided for permitting the entrapped air to escape, such as by using a gas-permeable material for the sack, the air will remain within the sack rendering it awkward to handle.
  • One method of densifying or compacting powder consists of allowing the powder to fall through a chamber maintained at less than atmospheric pressure and then discharging the powder into a sack taking care not to allow significant reaeration of the powder.
  • the present invention consists in a method of providing a container with densified or compacted powder, in which the powder is first subjected to an air or other gas pressure of less than its ambient pressure and then the pressure is increased rapidly to densify or compact the powder after which the thus treated powder isthen transfered to the container.
  • the invention further consists in apparatus for densifying or compacting powders, which includes a chamber having means for subjecting a powder within the chamber first to a pressure of less than its ambient pressure and then to a rapidly increased pressure.
  • apparatus for densifying or compacting powders such as milled china clay.
  • the apparatus includes a chamber CH into which a batch of the powder P is introduced from a hopper l-l via a butterfly valve BV, the powder reaching a level A.
  • valve BV closed control valve CV With the valve BV closed control valve CV] is opened to connect the interior of the chamber in a filter F to a source of vacuum, say of the order of 25 inches of mercury.
  • Valve CV1 is then closed and control valve CV2 opened to connect the interior of the chamber to a source of compressed air say up to to p.s.i., causing a rapid increase in pressure over a period of a number of seconds. This causes the level of the powder to fall to level C, i.e. more dense than its original state, and the compressed air will also clear the filter F.
  • Powder is taken via an outlet 0 connected to the chamber by a flexible coupling and having a weighing mechanism W, for weighing the powder passing through the outlet.
  • the increased pressure above the powder assists in expellipjg the powder, almost In the manner of an extrusion process ue to the physical characteristics of the densified or compacted powder and effect of the pressure.
  • a pressure of greater than atmospheric pressure after the reduced pressure, but in some cases it may be found adequate merely to'return the pressure to atmospheric pressure or to a pressure between the reduced pressure and atmosphere, the change being effected rapidly.
  • the pressure is increased from a vacuum of 25 inches of mercury to atmospheric pressure, it has been found that if this is achieved in a period of the order of a few seconds, say, 3 seconds, then this is sufficiently rapid to achieve the desired densifying or compacting.
  • the present invention although directed towards the filling of sacks and the like, considers the feasibility of applying the invention to the filling of larger containers such as road or rail bulk carriers and to filling the holds of ships.
  • a method of filling a container with densified powder which includes the steps of:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
US830626A 1968-06-13 1969-06-05 Method and apparatus for filling containers Expired - Lifetime US3586067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2817268 1968-06-13

Publications (1)

Publication Number Publication Date
US3586067A true US3586067A (en) 1971-06-22

Family

ID=10271428

Family Applications (1)

Application Number Title Priority Date Filing Date
US830626A Expired - Lifetime US3586067A (en) 1968-06-13 1969-06-05 Method and apparatus for filling containers

Country Status (6)

Country Link
US (1) US3586067A (de)
BE (1) BE734421A (de)
CH (1) CH491782A (de)
DE (1) DE1929559A1 (de)
FR (1) FR2010818A1 (de)
NL (1) NL6909025A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255374A (en) * 1977-07-04 1981-03-10 Institut Cerac S.A. Method of compacting powder
US4412829A (en) * 1980-04-08 1983-11-01 Baumgartner Papiers, S.A. Production of cigarette filter units
US4648432A (en) * 1985-07-12 1987-03-10 Emmanuel Mechalas Vacuum apparatus for filling bags with particulate material including dust collector and recycling of collected material
US4810275A (en) * 1986-07-23 1989-03-07 Alcatel Nv Method of making optical waveguides using glass forming pulverulent material
US5241998A (en) * 1991-10-30 1993-09-07 Suprex Corporation Apparatus and method for packing particles
EP0761423A3 (de) * 1995-09-11 1998-07-08 Intermetallics Co., Ltd. Verfahren zum Verdichten von Pulver
US20170077458A1 (en) * 2015-09-14 2017-03-16 Boe Technology Group Co., Ltd. Filling apparatus used in an evaporator system and filling method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3115516B1 (fr) 2020-10-22 2022-09-09 Psa Automobiles Sa Procédé et dispositif de typage du mode de conduite d’un véhicule autonome

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255374A (en) * 1977-07-04 1981-03-10 Institut Cerac S.A. Method of compacting powder
US4412829A (en) * 1980-04-08 1983-11-01 Baumgartner Papiers, S.A. Production of cigarette filter units
US4648432A (en) * 1985-07-12 1987-03-10 Emmanuel Mechalas Vacuum apparatus for filling bags with particulate material including dust collector and recycling of collected material
US4810275A (en) * 1986-07-23 1989-03-07 Alcatel Nv Method of making optical waveguides using glass forming pulverulent material
US5241998A (en) * 1991-10-30 1993-09-07 Suprex Corporation Apparatus and method for packing particles
US5363886A (en) * 1991-10-30 1994-11-15 Suprex Corporation Apparatus and method for packing particles
EP0761423A3 (de) * 1995-09-11 1998-07-08 Intermetallics Co., Ltd. Verfahren zum Verdichten von Pulver
US20170077458A1 (en) * 2015-09-14 2017-03-16 Boe Technology Group Co., Ltd. Filling apparatus used in an evaporator system and filling method
US10276835B2 (en) * 2015-09-14 2019-04-30 Boe Technology Group Co., Ltd. Filling apparatus used in an evaporator system and filling method

Also Published As

Publication number Publication date
CH491782A (de) 1970-06-15
DE1929559A1 (de) 1969-12-18
BE734421A (de) 1969-11-17
NL6909025A (de) 1969-12-16
FR2010818A1 (de) 1970-02-20

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