US3908591A - Apparatus for treating sheet material - Google Patents

Apparatus for treating sheet material Download PDF

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Publication number
US3908591A
US3908591A US465216A US46521674A US3908591A US 3908591 A US3908591 A US 3908591A US 465216 A US465216 A US 465216A US 46521674 A US46521674 A US 46521674A US 3908591 A US3908591 A US 3908591A
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US
United States
Prior art keywords
applicator
sheet material
applicator means
movement
stream
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
US465216A
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English (en)
Inventor
Edward C Hall
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.)
Owens Corning Fiberglas Technology Inc
Original Assignee
Owens Corning Fiberglas Corp
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 Owens Corning Fiberglas Corp filed Critical Owens Corning Fiberglas Corp
Priority to US465216A priority Critical patent/US3908591A/en
Priority to CA213,236A priority patent/CA1031956A/en
Priority to DE19742457246 priority patent/DE2457246A1/de
Priority to GB5320574A priority patent/GB1450619A/en
Priority to BE151978A priority patent/BE823913A/xx
Priority to FR7442997A priority patent/FR2268570A1/fr
Priority to BR0227/75D priority patent/BR7500167A/pt
Priority to SE7502260A priority patent/SE7502260L/xx
Priority to NL7502506A priority patent/NL7502506A/xx
Priority to JP50030009A priority patent/JPS605700B2/ja
Application granted granted Critical
Publication of US3908591A publication Critical patent/US3908591A/en
Assigned to WILMINGTON TRUST COMPANY, WADE, WILLIAM, J. reassignment WILMINGTON TRUST COMPANY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OWENS-CORNING FIBERGLAS CORPORATION
Assigned to OWENS-CORNING FIBERGLAS CORPORATION, A CORP. OF DE. reassignment OWENS-CORNING FIBERGLAS CORPORATION, A CORP. OF DE. TERMINATION OF SECURITY AGREEMENT RECORDED NOV. 13, 1986. REEL 4652 FRAMES 351-420 Assignors: WADE, WILLIAM J. (TRUSTEES), WILMINGTON TRUST COMPANY, A DE. BANKING CORPORATION
Assigned to OWENS-CORNING FIBERGLAS TECHNOLOGY INC. reassignment OWENS-CORNING FIBERGLAS TECHNOLOGY INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: OWENS-CORNING FIBERGLAS CORPORATION, A CORP. OF DE
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/60—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/04—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by pouring or allowing to flow on to the surface of the textile material

Definitions

  • ABSTRACT An apparatus for applying a flowable material to sheet [2i] Appl. No.:465,216
  • the sheet material is advanced beneath an applicator means which directs a stream of flowable material to a treatment zone for application to the sheet material.
  • support means for movably mounting the applicator means so that the applicator References Cited means can be moved to change the disposition of the UNITED STATES PATENTS width dimension of the stream with respect to the path um m n u h l h F .mC g ma m :1 fim m c m D m M 7 .P w l S flb m n h mw m a g m fmw C thn 1 a m m emw mh h OtW 0084 00 002 0 33w33 88 800 Robinson Robert together Wallach et US. Patent Sept. 30,1975 Sheet 1 of2 3,908,591
  • This invention relates to an apparatus for treating sheet material by supplying fluent material to such sheet material. And more particularly to the applying of particulate binder material to fibrous sheet material. such as continuous glass strand mat or chopped glass strand mat.
  • a sheet material such as a glass fiber mat is moved along by a conveyor underneath a binder applicator.
  • the applicator is typically a rectangularly shaped hopper box with a fixed outlet region in its bottom surface.
  • the hopper box and its outlet openings are positioned above and normal to the direction of movement of the conveyor means.
  • the outlet discharge opening is approximately as wide as the widest sheet material that is planned to be produced on the machine.
  • the outlet region can be engineered to the width of the sheet material being produced so substantially all of the binder material from the applicator will be applied to the sheet material being produced.
  • One apparatus to treating a mat width smaller than the outlet region of the binder applicator is to make no modification of the binder applicator at all. As the mat passes beneath the binder applicator, binder is deposited on the mat over its entire width. But binder is also deposited beyond the edges of the mat onto the conveyor mechanism. As can be seen this is a simple method for producing mat with a small width but there are obvious drawbacks to this approach. The binder material which falls upon the conveyor means is generally wasted. This wasted binder material may cause other cleaning and maintenance problems.
  • Another way of producing mat of varying widths involves varying the outlet region of the binder applicator.
  • Baffles are often positioned inside the hopper of the binder applicator to dam up or block off a portion of the outlet region. If the outlet region is successfully blocked off, binder material will be applied only to the mat and none will fall outside the mat width. But to dam up or block the outlet region of the binder applicator is a difficult and time consuming task. In practice, the outlet region which is blocked off will often leak and so there is generally some waste of binder material. Also, the baffles are difficult to install, position and remove from the hopper region of the applicator. It would be difficult and time consuming to remodify the binder applicator for subsequent changes in mat width. Thus, with this type apparatus, there can be some binder waste and also a maintenance problem.
  • the present invention provides an apparatus for treating sheet supplied to the treatment zone with a flowable material.
  • the applicator means above the treatment zone directs a curtain-like stream of flowable material toward the sheet.
  • This stream has a horizontal cross section whose width is greater than its thickness.
  • the applicator means may be positioned above the sheet material so that flowable material from the applicator means is deposited entirely across the width of the sheet. Then when a different width mat, either larger or smaller, is desired the applicator may be moved with respect to the direction of movement of the mat to modify the area of treatment of the sheet. This treatment area can be modified to match the width of the sheet.
  • Another object of this invention is to provide an apparatus which may be easily adapted for treating sheet of varying widths.
  • a further object of this invention is to provide an apparatus for treating sheet material which efficiently and effectively utilizes the treatment material.
  • FIG. 1 is a prospective view of an apparatus for applying flowable material to sheet material according to the present invention.
  • FIG. 2 is a plan view similar to FIG. 1 with applicator means positioned normal to the sheet material.
  • FIG. 3 is a plan view similar to FIG. 2 but with applicator means positioned oblique to the sheet material.
  • FIG. 4 is a plan view showing a preferred embodiment of the apparatus according to the invention.
  • FIG. 5 is an elevation view of the preferred embodiment of FIG. 4.
  • FIG. 6 is an end view of FIG. 5.
  • FIG. 7 is an elevation view showing another preferred embodiment of the apparatus according to the invention.
  • an applicator assembly 11 for applying flowable material 12 is positioned above a sheet material 22.
  • the flowable material 12 is held in a box or hopper 10.
  • the fluent material 12 could be any coating or binder material.
  • the flowable material 12 could be a particulate material such as small particles of thermoplastic material.
  • the flowable material 12 could also be a liquid material or a particulate material mixed with a liquid.
  • the hopper 10 is an elongated steel box having side walls and a bottom.
  • the hopper could of course be made of other materials such as stainless steel or fiberglas reinforced plastic material and be of many different shapes than the box shown. Normally there is a supply means to bring the flowable material from a remote storage area to the hopper 10.
  • the remote storage area and delivery means are not shown.
  • the hopper 10 has an outlet region 14 for emitting the flowable material.
  • This outlet region 14 could be a series of holes in the bottom of the hopper l0. Alternately a series of nozzles or tubes could be used as outlets for emitting the flowable material 12.
  • the metering device is a roll 16 generally filling the outlet region 14.
  • This roll 16 can be a knurled or grooved roll As the roll 16 turns, flowable material enters the grooved or knurled areas on the roll 16 and is carried outside of the hopper 10.
  • This roll 16 will generally be a steel or stainless steel knurled or grooved roll.
  • seals 15 can be made of a rubber or a felt-like material.
  • a brush roll 18 brushes the first roll 16 and thus cleans the flowable material 12 from the grooves or knurled areas on the roll 16.
  • the brush roll 18 may rotate in an opposite direction of the knurled roll 16 and thus enhance the cleaning action on the knurled roll.
  • the sheet material 22 can be a fibrous mineral material.
  • the sheet material 22 may for example be comprised of glass fibers.
  • the sheet material 22 could be a continuous strand or chopped strand glass fiber mat.
  • the sheet material 22 is moved below the applicator means by a conveyor means 24.
  • This conveyor means 24 may be a foraminous conveyor.
  • a porous conveyor such as a chain type conveyor could be used.
  • the treatment zone 20 is the space above the conveyor means 24 where sheet material 22 passing through this space may be treated with the fluent material 12 from above.
  • this treatment zone 20 is the region where the flowable material 12 and the sheet material 22 come together for treatment of the sheet material 22.
  • FIG. 2 and FIG. 3 show an applicator assembly 11 applying flowable material to sheet material of different widths.
  • Flowable material 12 is directed from the hopper 10 through the outlet regions 14 toward the treatment zone.
  • Sheet material 26 similar to that described in FIG. 1 is advanced below the applicator assembly 11 by a conveyor means 24.
  • the treatment zone is the space above the conveyor means 24 where flowable material directed from the applicator means is applied to the sheet material 26.
  • a metering roll 16 such as a knurled or grooved roll is at and generally filling the outlet region 14.
  • a brush roll 18 is used with the metering roll as described earlier.
  • the sheet material 26 such as a glass fiber mat is moved through the treatment zone by the conveyor means 24.
  • flowable material 12 is applied to the sheet material as it passes beneath the applicator assembly 11.
  • the outlet region 14 is of the same length as the sheet material 26.
  • all of the flowable material 12 is deposited onto the sheet material 26 as it passes through the treatment zone.
  • the outlet region 14 were left the same and a mat having a smaller width was passed through the treatment zone a portion of the flowable material would notbeapplied to the sheet material. That portion of the flowable material would pass through the treatment zone and onto and into the conveyor. This flowable material passing through the treatment zone would be wasted material.
  • FIG. 3 shows how a narrow mat may be produced according to the present invention without wasting the flowable material.
  • the hopper 10 and its outlet region 14 are shown oblique to the sheet material 28. As can readily be seen the outlet region l4 islonger than the mat sheet material 28 is wide.
  • the sheet material 28 is passed through the treatment zone above the conveyor means 24.
  • the sheet material 28 is similar to that described in FIG. 1 and could for example be a continuous strand glass fiber mat.
  • the treatment zone being directly above the conveyor means.
  • the width dimension of the elongated curtain-like stream of flowable material leaving the outlet region 14 is movable with respect to the direction of movement of the sheet material 28.
  • the sheet material 28 in FIG. 3 is moving from left to right.
  • This movement of the applicator means effects a change in the width of the treatment by the flowable material 12 without changing the width of the elongated curtain-like stream of flowable material 12 leaving the outlet region 14.
  • a metering roll 16 and brush roll 18 are shown as described in FIG. 1.
  • an applicator means with a fixed outlet or discharge region may be movably mounted according to the present invention so that the effective treatment area can be modified as desired.
  • the effective treatment area is the area of treatment by the fluent material.
  • the applicator means When a sheet material, as wide as the outlet region is long. is being treated it would be desirable to position the applicator means as shown in FIG. 2. Thus the effective treatment area would be the entire area of the sheet. If it were desired to only treat a portion of the sheet material with the flowable material, the applicator means could be moved to change the effective treatment area by narrowing the width of treatment of the sheet.
  • the applicator means could be moved according to the present invention so the effective area of treatment would match the area of the sheet. This is shown in FIG. 3.
  • the applicator means is supported such that the effective area of treatment by the flowable material on the sheet material may be varied.
  • the effective area of treatment may have a width as large as the width of the curtain-like stream of flowable material and it may have a width as small as the thickness of the curtain-like stream.
  • FIGS. 4, 5 and 6 show a preferred embodiment of the invention.
  • the applicator assembly is similar to that described earlier.
  • a hopper 10 is positioned above a sheet material 22.
  • the sheet material 22 can be a fibrous mineral material.
  • the sheet material could be a continuous strand glass fiber mat or a chopped strand glass fiber mat.
  • the hopper 10 contains flowable material 12.
  • An agitator 30 is shown inside the hopper .10 for agitation of the flowable material 12.
  • the agitator 30 stirs 'the fluent material 12 to aid in keeping the material in a flowable condition.
  • the agitator 30 can also be used to mix the flowable material 12.
  • the flowable material 12 is discharged from the hopper through an outlet region in the bottom of the hopper.
  • a metering device such as the roll 16 is positioned at the opening in the bottom of the hopper.
  • This metering roll 16 may be a knurled or grooved roll.
  • a brush roll 18 is shown in combination with the grooved or knurled roll 16. The brush roll 18 is used to remove the fluent material 12 from the knurled or grooved roll 16.
  • FIG. 6 shows the drive mechanism for moving the agitator roll 30, the brush roll 18, the metering roll 16 and an idler roll 32.
  • a motor 34 and a speed reducer 36 are used to drive the rolls.
  • the motor 34 may be a variable speed AC or DC type motor.
  • the speed reducer 36 may be a variable speed reducer or a variable gear reducer.
  • the rolls are shown to be connected to the motor 34 and speed reducer 36 by a chain 38 and sprocket 40 type drive.
  • a chain 38 and sprocket 40 drive would be a positive non-strip type drive.
  • a timing belt or double V belt could also be used in place of the chain 38. 7
  • FIG. 5 shows the fluent material 12 being discharged from the hopper 10.
  • the fluentrnaterial 12 is being applied to the sheet material 22.
  • a conveyor means 24 supported by rollers convey the material 22 beneath the applicator means.
  • the conveyor means may be a foraminous type conveyor such as a chain conveyor.
  • FIG. 4 shows support means for movably mounting the applicator assembly above the sheet material 22.
  • a circular track 42 is horizontally disposed around the hopper 10. This track 42 or guide may be similar to a railroad type track or rail. The track 42 is attached to the applicator assembly.
  • FIGS. 4 and 5 show roller means 44 attached to a support member 46. These rollers 44 and support member 46 are used to movably support the applicator assembly.
  • the applicator assembly is movably mounted above the sheet material 22 by the track 42 being movably supported by the rollers 44.
  • the rollers 44 are shown to be flat wheel type rollers. However, the rolls 44 could be a flanged type roller such as a wheel on a railroad car.
  • FIGS. 4, 5 and 6 show an applicator apparatus similar to that discussed earlier and details on how the applicator means may be movably mounted so that the applicator means can be moved to change the disposition of the width dimension of the stream of fluent material 12 with respect to the path of the sheet material 22 to effect changes in the area treated by the flowable material 12 in the treatment zone without changing the width of the stream.
  • the applicator means may be moved by moving the track 42 across the rollers 44.
  • the applicator means would thus be moving about a vertical axis. As shown in FIG. 4 the vertical axis would pass through the midregion of the applicator means. With a track other than the circular track shown or if the applicator means were positioned within the track in a different manner the vertical axis of movement may not pass through the midregion of the applicator means.
  • FIG. 7 shows another embodiment of the present invention.
  • the applicator assembly is like that just discussed.
  • a hopper 10 with an agitator 30 is positioned above sheet material 22.
  • a metering device 48 as discussed earlier.
  • the metering device shown is a knurled or grooved roll used in combination with a brush roll. The rolls are driven in a similar manner as discussed in FIG. 6.
  • a motor 34 with speed reducer 36 drives the rolls with a sprocket 40 and chain 38 system. This drive system has been discussed.
  • the flowable material 12 is discharged from the applicator assembly and is applied to the sheet material 22 which is shown in FIG. 7 to be on a conveyor means 24 which is supported by a conveyor support 25.
  • a bearing means 50 connects the applicator means with a support means 52.
  • the bearing means 50 and the support member 52 movably support the applicator assembly such that the applicator means is moved about a vertical axis. This vertical axis may, as shown in FIG. 7, pass through the mid-region of the applicator means.
  • the applicator may be moved about a vertical axis so that the orientation between the discharged opening of the hopper l0 and the direction of movement of the sheet material 22 can be changed to vary the effective area of treatment by the fluent material 12 discharged from the applicator means.
  • the bearing means 50 may be a ballbearing type or some other type of bearing means.
  • Apparatus for applying flowable material to sheet material comprising:
  • support means movably mounting the applicator means so that the applicator means can be moved about an axis to change the disposition of the width dimension of the stream with respect to the path of the sheet material to effect changes in the area treated by the flowable material in the treatment zone without changing the width of the stream.
  • the support means includes a support member and a bearing means connecting the support member and the applicator means so the applicator means is pivotally mounted about a vertical axis above the treatment zone.
  • the support means further includes means holding the track for movement about a vertical axis wherein the track is fixed to the applicator means.
  • An apparatus for treating elongated fibrous sheet material by applying a stream of fluent material upon the fibrous sheet material during its movement below such apparatus comprising:
  • an applicator means having an elongated opening for discharging the fluent material
  • b. means holding the applicator for movement about a vertical axis so that the orientation between the elongated discharge opening and direction of movement of the sheet material can be changed to vary the effective area of treatment by the fluent material discharged from the applicator.
  • the applicator means includes a metering means at the elongated opening for metering the amount of fluent material being discharged.
  • the metering means includes a rotatable roll extending along the elongated opening.
  • th metering means further includes means for brushing the discharged fluent material from the surface of the rotatable roll during its movement wherein the rotatable roll has a knurled surface.
  • an applicator means for holding the binder material having an elongated opening for discharging the material
  • the means holding the applicator means includes a support member and a bearing means connecting the support member and the applicator means.
  • the means holding the applicator means further includes means holding the track for movement about a vertical axis wherein the track is fixed to the applicator means.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coating Apparatus (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Laminated Bodies (AREA)
US465216A 1974-04-29 1974-04-29 Apparatus for treating sheet material Expired - Lifetime US3908591A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US465216A US3908591A (en) 1974-04-29 1974-04-29 Apparatus for treating sheet material
CA213,236A CA1031956A (en) 1974-04-29 1974-11-07 Apparatus for treating sheet material
DE19742457246 DE2457246A1 (de) 1974-04-29 1974-12-04 Vorrichtung zur aufbringung von fliessfaehigem material auf flaechenfoermiges material
GB5320574A GB1450619A (en) 1974-04-29 1974-12-09 Apparatus for applying flowable material to sheet material
FR7442997A FR2268570A1 (xx) 1974-04-29 1974-12-27
BE151978A BE823913A (fr) 1974-04-29 1974-12-27 Appareil pour appliquer une matiere fluide a une feuille
BR0227/75D BR7500167A (pt) 1974-04-29 1975-01-10 Aparelho para aplicar material escoavel, aparelho para tratamento de um material em folha fibrosa e aparelho para tratar umo trama de fibras de vidro
SE7502260A SE7502260L (sv) 1974-04-29 1975-02-27 Anordning for paforing av ett strommande material pa ett banformigt material.
NL7502506A NL7502506A (nl) 1974-04-29 1975-03-04 Inrichting voor het aanbrengen van vloeibaar materiaal op velmateriaal.
JP50030009A JPS605700B2 (ja) 1974-04-29 1975-03-12 ガラス繊維マツトに流動性物を塗布する装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US465216A US3908591A (en) 1974-04-29 1974-04-29 Apparatus for treating sheet material

Publications (1)

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US3908591A true US3908591A (en) 1975-09-30

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US465216A Expired - Lifetime US3908591A (en) 1974-04-29 1974-04-29 Apparatus for treating sheet material

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US (1) US3908591A (xx)
JP (1) JPS605700B2 (xx)
BE (1) BE823913A (xx)
BR (1) BR7500167A (xx)
CA (1) CA1031956A (xx)
DE (1) DE2457246A1 (xx)
FR (1) FR2268570A1 (xx)
GB (1) GB1450619A (xx)
NL (1) NL7502506A (xx)
SE (1) SE7502260L (xx)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550680A (en) * 1984-11-19 1985-11-05 Rca Corporation Apparatus for applying a layer of powder to a surface
EP0256869A2 (en) * 1986-08-15 1988-02-24 McNEIL-PPC, INC. Method for providing powder into fibrous web structures
US4793280A (en) * 1986-08-15 1988-12-27 Personal Products Company Method and apparatus for providing powder into fibrous web structures
US4805551A (en) * 1985-02-21 1989-02-21 Ceramica Filippo Marazzi S.P.A. Process and apparatus for producing glazed ceramic tiles, and tiles so obtained
US5997644A (en) * 1995-12-14 1999-12-07 Environmental Reprocessing, Inc. Media depositing system and method
US6183559B1 (en) * 1999-01-26 2001-02-06 Building Materials Corporation Of America Rotatable coating hopper
US20060182889A1 (en) * 2003-03-06 2006-08-17 Heikki Vatanen Method for feeding a treating agent to an application apparatus
US20150197396A1 (en) * 2012-07-19 2015-07-16 Adamis Pharmaceuticals Corporation Powder feeding apparatus

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2738894C2 (de) * 1977-08-29 1983-09-08 Sollich Gmbh & Co Kg, 4902 Bad Salzuflen Vorrichtung zum Auftragen einer Überzugsmasse auf Gegenstände
JPS5611229A (en) * 1979-07-11 1981-02-04 Nippon Petrochem Co Ltd Manufacture of glass fiber reinforced thermoplastic synthetic resin sheet
FR2670220A1 (fr) * 1990-12-06 1992-06-12 Saint Gobain Isover Matelas fibreux destine au pressage.
JP2510872Y2 (ja) * 1991-09-25 1996-09-18 タツタ電線株式会社 押出成形機

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US351483A (en) * 1886-10-26 John w
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US1643144A (en) * 1923-03-06 1927-09-20 Wilcox Katharine Rawling Dusting machine
US2037822A (en) * 1933-08-26 1936-04-21 Barrett Co Process and apparatus for producing variegated roofing
US2057548A (en) * 1934-05-10 1936-10-13 Sylvania Ind Corp Method of preventing the adherence of stacked sheets
US2321082A (en) * 1939-04-29 1943-06-08 Carbide & Carbon Chem Corp Feeding and distributing mechanism
US3620423A (en) * 1968-07-23 1971-11-16 Golden Wonder Ltd Apparatus for distributing powder

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US351483A (en) * 1886-10-26 John w
US533305A (en) * 1895-01-29 Machine foe
US1643144A (en) * 1923-03-06 1927-09-20 Wilcox Katharine Rawling Dusting machine
US2037822A (en) * 1933-08-26 1936-04-21 Barrett Co Process and apparatus for producing variegated roofing
US2057548A (en) * 1934-05-10 1936-10-13 Sylvania Ind Corp Method of preventing the adherence of stacked sheets
US2321082A (en) * 1939-04-29 1943-06-08 Carbide & Carbon Chem Corp Feeding and distributing mechanism
US3620423A (en) * 1968-07-23 1971-11-16 Golden Wonder Ltd Apparatus for distributing powder

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550680A (en) * 1984-11-19 1985-11-05 Rca Corporation Apparatus for applying a layer of powder to a surface
US4805551A (en) * 1985-02-21 1989-02-21 Ceramica Filippo Marazzi S.P.A. Process and apparatus for producing glazed ceramic tiles, and tiles so obtained
EP0256869A2 (en) * 1986-08-15 1988-02-24 McNEIL-PPC, INC. Method for providing powder into fibrous web structures
US4793280A (en) * 1986-08-15 1988-12-27 Personal Products Company Method and apparatus for providing powder into fibrous web structures
EP0256869A3 (en) * 1986-08-15 1989-11-15 Personal Products Company Method and apparatus for providing powder into fibrous web structures
AU592663B2 (en) * 1986-08-15 1990-01-18 Personal Products Company Method and apparatus for providing powder into fibrous web structures
US5997644A (en) * 1995-12-14 1999-12-07 Environmental Reprocessing, Inc. Media depositing system and method
US6183559B1 (en) * 1999-01-26 2001-02-06 Building Materials Corporation Of America Rotatable coating hopper
US6358561B1 (en) * 1999-01-26 2002-03-19 Building Materials Corporation Of America Rotatable coating hopper
US20060182889A1 (en) * 2003-03-06 2006-08-17 Heikki Vatanen Method for feeding a treating agent to an application apparatus
US20150197396A1 (en) * 2012-07-19 2015-07-16 Adamis Pharmaceuticals Corporation Powder feeding apparatus
US10370183B2 (en) * 2012-07-19 2019-08-06 Adamis Pharmaceuticals Corporation Powder feeding apparatus

Also Published As

Publication number Publication date
NL7502506A (nl) 1975-10-31
FR2268570A1 (xx) 1975-11-21
DE2457246A1 (de) 1975-11-13
BE823913A (fr) 1975-04-16
GB1450619A (en) 1976-09-22
SE7502260L (sv) 1975-10-30
JPS605700B2 (ja) 1985-02-13
CA1031956A (en) 1978-05-30
BR7500167A (pt) 1976-03-03
JPS50138180A (xx) 1975-11-04

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