US3281057A - Recloseable carton having narrow cover front face panel - Google Patents

Recloseable carton having narrow cover front face panel Download PDF

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Publication number
US3281057A
US3281057A US485989A US48598965A US3281057A US 3281057 A US3281057 A US 3281057A US 485989 A US485989 A US 485989A US 48598965 A US48598965 A US 48598965A US 3281057 A US3281057 A US 3281057A
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United States
Prior art keywords
cover
front wall
carton
edge
panel
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
US485989A
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English (en)
Inventor
Kenneth T Buttery
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.)
Fort James Corp
Original Assignee
Brown Co
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Filing date
Publication date
Application filed by Brown Co filed Critical Brown Co
Priority to US485989A priority Critical patent/US3281057A/en
Priority to GB33610/66A priority patent/GB1084407A/en
Priority to NL6611821A priority patent/NL6611821A/xx
Application granted granted Critical
Publication of US3281057A publication Critical patent/US3281057A/en
Assigned to JAMES RIVER CORPORATION OF VIRGINIA, A CORP. OF VA. reassignment JAMES RIVER CORPORATION OF VIRGINIA, A CORP. OF VA. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: JAMES RIVER DELAWARE, INC.
Assigned to JAMES RIVER DELAWARE M INC. reassignment JAMES RIVER DELAWARE M INC. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: BROWN COMPANY
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • B65D5/5405—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form
    • B65D5/5415—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in one or more closure flaps and in the container body so as to form after rupture a lid hinged to a side edge of the container body

Definitions

  • the present invention relates to cartons, and is more particularly concerned with cartons which may be readily and inexpensively erected from integral cut and scored blanks, particularly mutually nestable blanks, and which cartons may be readily and positively sealed by means of automatic machinery, especially such cartons as are recloseable and have a narrow cover front face panel.
  • Cartons having a so-called flip-top cover hingedly connected to the edge of the rear panel, which may be erected with the cover in sealed condition and which may be readily opened by the removal of a tear strip, have become exceedingly popular as containers for food items such as ice cream. Once the tear strip is removed, the cover may be opened for access to some or all of the contents, and may be reclosed for further storage until the contents have been completely consumed.
  • Cartons of the type described which have been available in the prior art, although satisfactory in use, have the disadvantage that they are difiicult to construct and seal on automatic machinery.
  • Prior art cartons are generally provided with an outer front wall member integral with the cover of the carton, having its own flaps extending at the ends thereof.
  • a tear strip is provided as an integral unit and extends from the end of one outer front wall flap, across the outer front wall, and .to the end of the opposite outer front wall flap.
  • FIG. 1 is a plan view of a blank cut and scored for assembling a carton according to the invention, and additionally showing a portion of the edge of an adjacent blank nesting therewith.
  • FIG. 2 is a plan view of the blank folded over and glued to form a flattened tube.
  • FIG. 3 is an end view of the carton showing the front and rear wall outer end flaps in partially folded position.
  • FIG. 4 is a bottom view of the structure of FIG. 3.
  • FIG. 5 is a cross-sectional view taken at the line 5-5 of FIG. 4.
  • FIG. 6 is a perspective view of the sealed carton.
  • FIG. 7 is a perspective view of the carton of FIG. 6 after the seal has been broken and the cover opened.
  • FIG. 8 is a plan view of a blank cut and scored for assembling an alternative embodiment of the invention, also showing a portion of the edge of another blank nested therewith.
  • FIG. 9 is a perspective view of the sealed carton prepared from the blank of FIG. 8.
  • FIG. 10 is a perspective view of the carton of FIG. 9 after the seal has been broken and the cover opened.
  • a carton which is so that it accomplishes the objects and provides the advantages stated and described above, and which more specifically is formed from an integral blank having panels including a bottom member having inner end wall flaps hingedly connected to the ends thereof, a front wall member hingedly connected to one edge of the bottom member having front wall outer end flaps hingedly connected to the ends thereof, and a rear wall member hingedly connected to the other edge of the bottom member having rear wall outer end flaps hingedly connected tothe ends thereof.
  • a cover is provided which is hingedly connected to the upper edge of the rear wall member. The cover is provided with cover flaps comprising cover end wall panels and a cover front wall panel.
  • the cover front wall panel is designed so that its length is smaller than the length of the cover end wall panels, the term length being used in reference to the distance between the score line defining the panel and the edge of the panel parallel thereto.
  • the cover front wall panel is provided at its ends with end flaps overlapped by and adhesively affixed to the cover end wall panels.
  • Each end flap of the cover front wall panel is so contoured that a portion thereof extends downwardly in the erected carton (and longitudinally with respect to the direction of the carton blank) a distance beyond the severance line defining the edge of the cover front Wall panel.
  • triangular webs connected to the ends .of thecover front wallpanel and integral with the saidend flap extensions, extend below the edge of the cover front wall panel in the erected cartonand cooperate with the end flaps to provide a structure frictionally engaging the body of the carton and thereby retaining the cover in closed position after it has once been opened and then reclosed.
  • the cover end wall panels are each provided with a detachable adhesive panelconnected thereto at a severance line.
  • the structure of the carton is so designed that adjacent blanks may be reversed 'for nesting together during the cutting process in. order to conserve paperboard raw material.
  • the rear wall outer end flaps, the cover end wall flaps, and the cover front wall end flaps are designed to be shorter than the front wall outer endflapand the inner end wall flaps.
  • each rear wall outer end flap may be provided with a recess, preferably rectangular, so designed that when adjacent blanks are nested together in opposite directions with the oblique recessions of the rear wall outer end flaps in edge-to-edge engagement, the edges of the rear upper corner of the .inner end wall flap ofoneblank are nested in edge-to-edge engagement the edges of the corner recess of the ,7
  • the carton of the invention is constructed from an integral blank, as illustrated in FIG. 1, and comprises a bottom panel member 1, a front wall member 2, and a rear wall- 'member 3 hingedly connected to the bottom member 1.
  • Acover 4 is hingedly connected to the rear wall member 3.
  • the bottom 1 is provided at its ends with inner end wall flaps 5 hingedly connected thereto
  • the front wall member-2 is provided at its ends with front wall outer end flaps 6 hingedly connected thereto
  • the rear wall member 3 is provided with rear wall outer end flaps 7 hingedly connected thereto.
  • the cover 4 is provided with end flaps 8 comprising cover end wall panels 9 having panels 10 connected to 'the panels 9 at severance or fracture lines 11, and adhe- 'sively aflixed to both the front wall outer end flap 6 and rear wall outer end flap 7.
  • the cover 4 is also provided at its forward edge with a cover flap 12 comprising a cover front Wall panel 13, and severance or fracture lines 14 defining a detachable tear strip 15 having a tab or graspableportionlfi at least at one end. thereof
  • An adhesive panel 1 7 is adhesively affixed to the front wall member.
  • the cover front wall panel 13 is made shorter than the cover end Wall panels 9 in order to effecta saving in paperboard dinally beyond the said severance line.
  • the inner corner of the overhang 18a is provided with an obliquely recessed edge 18b.
  • the oblique edge 18b is preferably colinear with a cut 21 extending from the said severance line 14 at the edge of the cover .
  • front wall panel defining a beveled edge of the tab 16 of the tear strip 15 on one side and defining a triangular web 22 on the other side thereof, said web being connected to and extending longitudinally beyond the edge of the cover front wall panel.
  • the overhang 18a constitutes an extension of the triangular web 22.
  • the triangular webs 22 and the depending portions of the cover front wall end flaps 18 cooperate to. provide frictional engagement of the cover against the front Wall and side walls forming the corners of the carton, thus retaining the cover in closed position afterthe panel 13 has been detached at the severance line 14.
  • the lower portions of the terminal edges of the rear wall'outer end flaps are each preferably provided with an oblique recession 19 receding from the forward-most terminal edge 23 toward the bottom edge of the flap 7 to a vertical edge 23a having the same length as the edge 23.
  • the forward edge 23 should be positioned a sufficient distance from the bottom edge of the flap, or from an imaginary line representing an extension of the score line 25, so that the edge 23 clears the adhesive area '24 when the flaps 6 and 7 are folded together.
  • a corner recess 20 is also provided in the upper terminal corner of the rear outer end wall flap 7 to facilitate nesting (if adjacent blanks when they are cut from the paperboard stock, as shown in FIG. 1.
  • the oblique receding edge 19, which should preferably be straight, has a further function in that it permits the oblique edge 19 of an adjacent blank to nest closely therewith, as shown in FIG. 1, accomplishing a material saving in raw material.
  • the recess or cut-out20 may be omitted, thus increasing the vertical dimension of the forward edge 23 of flap 7 or of the oblique recession 19. Although such embodiment does.
  • the carton blank may be folded at the score line between the bottom 1 and rear wall member 3.
  • the cover front wall panel 13 is then folded over and the adhesive panel 17 alfixed to the outer surface of the, front wall member 2, forming a folded tube, as shown in ⁇ FIG. 2.
  • the front wall member '2' may be folded over at thescore line connecting it with the bottom 1, and the adhesive panel 17 may then be glued to the outer surface of the front wall member 2 in the same manner.
  • the carton so foldedoccupies veryv little space, and may be shipped to the packager in this form for filling and sealing. 7
  • the folded carton is, squared up, as on a conventional squaring machine.
  • One end is then closed by first folding in the inner end wall flap 5.
  • the rear wall outer end flap 7 and the front wall outer end. flap 6 are then folded in, the frontwall "outer end flap overlapping the rear wall outer end flap.
  • the contour provided by the recessed edge 19 permits the terminal edge 23 of the rear wall outer end, fiap 7 to clear the adhesive area 24 on the inner surface. of the outer wall'end flap 6.
  • the cover front wallfpanel end flap 18 is then folded over, followed finally by the folding over of the cover end Wall panel 9.
  • the greater length of the flap 18 permits it to be engaged and folded over by the plow of the folding apparatus before the panel 9 (of lesser width) is engaged.
  • Heat is then applied to activate and set the adhesive, causing the front wall outer end flap 6 to become adhesively afiixed to the rear wall outer end flap 7 and also to the inner end flap 5.
  • the adhesive panel becomes adhesively affixed to the rear wall outer end flap 7 and cover front wall panel end flap 18 becomes affixed to cover end wall panel 9.
  • the cart-on may then be filled through the end remaining open.
  • the opened end may subsequently be closed and sealed in the same manner, to form a completely sealed carton as shown in FIG. 6.
  • the first carton end may be closed and/or tacked, as with glue, but not sealed, and then both carton ends sealed concurrently or simultaneously after filling of the carton.
  • the carton may be opened by grasping the tab 16 and removing the tear strip 15. As the cover is subsequently lifted open, the cover end wall panels 9 are parted from the adhesive panels 10 at the severance lines 11, forming the structure shown in FIG. 7. The cover may be reclosed for storing any unconsumed contents. When so closed, the triangular webs 22 engage the front wall member 3, and the flaps 18, including the overhangs or extensions 18a, engage the front wall outer end flaps 6, retaining the cover in place.
  • FIGS. 8-10 A modified embodiment of the invention is shown in FIGS. 8-10.
  • the basic structure is the same as that shown in FIGS. 1-7.
  • the adhesive panel 17 is directly connected to the cover front wall panel 13 at a severance line 14.
  • the adhesive strip 17 is afiixed to the front wall member only at isolated adhesive areas 30 as, for example, in the form of circles, ovals, tear drops, or rectangles, provided either on the surface of the adhesive panel as shown in FIG. 8, or on the corresponding areas of the front wall member 2.
  • a glue resist coating or glue resist ink, or both may be advantageously applied intermediate the adhesive areas to prevent adhesion at such places when a general application of the adhesive is provided.
  • transverse cuts 31 are provided in the adhesive panel 17 for facilitating the removal of the adhesive panel. Cut scores 32 are also provided on the front surface of the front wall member surrounding the areas to which the adhesive areas 30 are to become aflixed.
  • the entire area of the front wall member (excluding glue areas) to which the adhesive panel or strip is to be sealed is coated with a solid coating of a glue-repellent ink, preferably one having microcrystalprinting formed by means of a dot pattern.
  • the entire outer surface of the cart-on is pattern-coated with a release agent such as a wax coating, excluding the circular, oval, tear-drop, or other areas defined by the cut scores 32, which areas are to be glued to the adhesive strip.
  • the inner surface of the entire carton is also coated with a release coating such as wax, excluding the areas on the adhesive strip which subsequently are to be placed in register with the glue areas of the front wall member defined by the cut scores 32.
  • a conventional glue composition is then appled as a solid coating over the inner surface of the adhesive strip 17. Consequently, when the adhesive panel or strip 17 is folded over onto the front wall member 2, it becomes adhered to the front wall member only at the tear-drop areas defined by the cut score lines 32, which areas are substantially free of any release agent such as wax.
  • the transverse cuts 31 are postioned immediately forward of each adhesive area 30 with respect to the direction of tear. Consequently, when the adhesive panel 17 is grasped at the tab. 16 and removed, it parts cleanly from the front 6 wall member, except in the adhesive zones surrounded by the cut score lines 32, within which zones only the top liner is removed in the tearing process.
  • the wax coating or the glue repellent ink may be used separately as a release agent to prevent adhesion between the adhesive panel 17 and the front wall member 2, optimum results are obtained by the use of the combination of both. Moreover, although rectangular areas may be provided free from the release agent at the adhesive zones, optimum results are obtained when the printed application of the release coating is closely patterned around the oval or tear drop areas, substantially exactly in register with the areas of the oval or tear drop.
  • the conventional adhesive such as glue, is laid down as a solid strip on the front wall member from one end of the adhesive strip to the other. Other types of adhesive may be used if desired. Although in the prefered embodiment the adhesive is placed on the panel 17, it may if desired be applied to the front wall member 2.
  • the transverse cuts 31 serve to prevent splitting of the the stock as the adhesive strip zipper is pulled off. However, they may be dispensed with in certain applications.
  • the entire panel or strip 17 may be adhered to the front wall member 2.
  • the cover may then be separated from the adhesive panel by tearing the severance line by means of a knife, or merely by running a fingernail along the severance line while pressing inwardly.
  • Other forms of adhesive panels known to the art having a structure wherein they are separated from the cover front wall panel by at least one severance line may also be used.
  • FIGS. 8-10 The carton of FIGS. 8-10 is assembled and sealed in substantially the same manner as described above.
  • the sealed carton may be opened by grasping the tab 16 and completely removing the panel 17. As the cover is lifted open, the adhesive panels 10 are detached and permit the cover to be fully opened.
  • the carton of the invention has an important advantage over prior art cartons in that successive blanks may be positioned and cut in closely nested position, effecting a substantial saving in material costs.
  • a further saving in material cost results from the fact that the cover front wall panel is materially shortened, permitting more perfect nesting.
  • the difiiculties which might otherwise be inherent in a shortened cover front wall panel are overcome by the novel structure having a dependent triangular web extending beyond the edge of the panel cooperating with a cover front panel end flap having a depending portion extending beyond the edge of the cover front wall panel, which structures frictionally engages the front wall and end of the carton and retain the cover in closed position even after it has been unsealed and reclosed.
  • the terminal edges of the rear wall outer end flaps are so contoured that they do not interfere with the adhesive contained upon the inner surface of the front wall outer end flaps, facilitating the assembly of the carton. Further, the increased length of the cover front wall panel flaps with respect to the width of the cover end wall panels facilitates their being properly folded under the cover end wall panels using inexpensive machinery or adaptations thereof.
  • outer end flap tapers 50, 51, and 52 where shown in the drawings, are not essential for either operativeness However, it is not essential for either operativeness However, it is not essential for either operativeness However, it is not essential for either operativeness However, it is not essential for either operativeness However, it is not essential for either operativeness However, it is not essential for either operativeness However, it is not essential for either operativeness However, it is not essential for either operativeness However, it
  • taper 50 at the upper terminal edge of the rear wall outer end flap and taper 52 at the upper terminal edge of the front wall outer end flap are convenient modifications which have the result of eliminating upper terminal edge of the front wall outer end flap 6 during closing of the front wall outer end flap 6 uponthe rear wall outer end flap 7.
  • This tendency to bind ' is eliminated by provision of taper 51 at the upper terminal edge of front wall outer end flaps 6, which may be present alone or together with taper 52, in such latter case providing a double taper to the upper terminal edge of the front wall outer end flap 6 in the preferred embodiment of this structural modification.
  • tapers 50 and 52 serve the further function of maintaining the outer end flaps 6 and 7 in better alignment upon sealing, since closure of the cover end flapsupon the front and rear wall outer end flaps 6 and 7 when tapers 50 and 52 are present does not tend to push the end flaps out of proper alignment thereby causing the ultimate sealing to be less satisfactory than desired.
  • cover front wall panel end flaps and said webs cooperate to provide frictional engagement with the corners of a carton erected from said blank for retaining said cover in closed position after said means adhesively affixing said cover front Wall panel to said front wall member has been detached.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
US485989A 1965-09-09 1965-09-09 Recloseable carton having narrow cover front face panel Expired - Lifetime US3281057A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US485989A US3281057A (en) 1965-09-09 1965-09-09 Recloseable carton having narrow cover front face panel
GB33610/66A GB1084407A (en) 1965-09-09 1966-07-26 Recloseable carton having narrow cover front face panel
NL6611821A NL6611821A (enrdf_load_stackoverflow) 1965-09-09 1966-08-22

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US485989A US3281057A (en) 1965-09-09 1965-09-09 Recloseable carton having narrow cover front face panel

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US3281057A true US3281057A (en) 1966-10-25

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US485989A Expired - Lifetime US3281057A (en) 1965-09-09 1965-09-09 Recloseable carton having narrow cover front face panel

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US (1) US3281057A (enrdf_load_stackoverflow)
GB (1) GB1084407A (enrdf_load_stackoverflow)
NL (1) NL6611821A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506184A (en) * 1968-09-20 1970-04-14 Finn Ind Inc Ice cream cartons
DE3316811A1 (de) * 1983-05-07 1984-11-08 Unilever N.V., Rotterdam Faltschachtel mit einem unterteil und einem deckelteil
DE3317402A1 (de) * 1983-05-13 1984-11-15 Unilever N.V., Rotterdam Faltschachtel
US4907698A (en) * 1989-03-17 1990-03-13 James River Corporation Ice cream carton, carton blank, and method of assembly
US5417366A (en) * 1993-07-27 1995-05-23 Gulf States Paper Corporation Collapsed carton tube and ice cream carton formed therefrom

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150748A (en) * 1978-07-24 1979-04-24 American Can Company Tamperproof reclosable carton

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1963639A (en) * 1931-12-21 1934-06-19 Eugene F Ahlquist Envelope
US2330666A (en) * 1941-05-17 1943-09-28 Berkowitz Envelope Company Quick-opening envelope
US3125280A (en) * 1964-03-17 Carton having hinged cover
US3144980A (en) * 1962-02-16 1964-08-18 Riegel Paper Corp Dispensing container
US3146936A (en) * 1962-07-05 1964-09-01 Ferguson Lander Box Co Carton and blank therefor
US3197114A (en) * 1962-09-27 1965-07-27 Riegel Paper Corp Top opening ice cream carton
USRE25876E (en) * 1965-10-12 Paper dispensing carton

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125280A (en) * 1964-03-17 Carton having hinged cover
USRE25876E (en) * 1965-10-12 Paper dispensing carton
US1963639A (en) * 1931-12-21 1934-06-19 Eugene F Ahlquist Envelope
US2330666A (en) * 1941-05-17 1943-09-28 Berkowitz Envelope Company Quick-opening envelope
US3144980A (en) * 1962-02-16 1964-08-18 Riegel Paper Corp Dispensing container
US3146936A (en) * 1962-07-05 1964-09-01 Ferguson Lander Box Co Carton and blank therefor
US3197114A (en) * 1962-09-27 1965-07-27 Riegel Paper Corp Top opening ice cream carton

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506184A (en) * 1968-09-20 1970-04-14 Finn Ind Inc Ice cream cartons
DE3316811A1 (de) * 1983-05-07 1984-11-08 Unilever N.V., Rotterdam Faltschachtel mit einem unterteil und einem deckelteil
DE3317402A1 (de) * 1983-05-13 1984-11-15 Unilever N.V., Rotterdam Faltschachtel
US4907698A (en) * 1989-03-17 1990-03-13 James River Corporation Ice cream carton, carton blank, and method of assembly
US5417366A (en) * 1993-07-27 1995-05-23 Gulf States Paper Corporation Collapsed carton tube and ice cream carton formed therefrom

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Publication number Publication date
NL6611821A (enrdf_load_stackoverflow) 1967-03-10
GB1084407A (en) 1967-09-20

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Date Code Title Description
AS Assignment

Owner name: JAMES RIVER DELAWARE M INC.

Free format text: MERGER;ASSIGNOR:BROWN COMPANY;REEL/FRAME:003850/0804

Effective date: 19810219

Owner name: JAMES RIVER CORPORATION OF VIRGINIA, TREDEGAR ST.,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JAMES RIVER DELAWARE, INC.;REEL/FRAME:003850/0811

Effective date: 19810406

Owner name: JAMES RIVER DELAWARE M INC., MICHIGAN

Free format text: MERGER;ASSIGNOR:BROWN COMPANY;REEL/FRAME:003850/0804

Effective date: 19810219