US3526343A - Dispenser screw cap and overcap - Google Patents

Dispenser screw cap and overcap Download PDF

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Publication number
US3526343A
US3526343A US678433A US3526343DA US3526343A US 3526343 A US3526343 A US 3526343A US 678433 A US678433 A US 678433A US 3526343D A US3526343D A US 3526343DA US 3526343 A US3526343 A US 3526343A
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United States
Prior art keywords
screw cap
overcap
pump
ribs
assemblage
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
US678433A
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English (en)
Inventor
William R O'donnell
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.)
SPECIALTY ACQUISITION Corp A CORP OF DELAWARE
Valve Corp of America Inc
Original Assignee
Valve Corp of America Inc
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 Valve Corp of America Inc filed Critical Valve Corp of America Inc
Application granted granted Critical
Publication of US3526343A publication Critical patent/US3526343A/en
Assigned to SPECIALTY PACKAGING PRODUCTS, INC. reassignment SPECIALTY PACKAGING PRODUCTS, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE FEB. 17, 1984 Assignors: ETHYL PRODUCTS COMPANY
Assigned to UNITED VIRGINIA BANK A VA BANKING CORP reassignment UNITED VIRGINIA BANK A VA BANKING CORP SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SPECIALTY PACKAGING PRODUCTS, INC. A VA CORP
Assigned to SPECIALTY PACKAGING LICENSING COMPANY, A CORP OF DELAWARE reassignment SPECIALTY PACKAGING LICENSING COMPANY, A CORP OF DELAWARE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SPECIALTY ACQUISITION CORPORATION, A CORP OF DE.
Assigned to SPECIALTY ACQUISITION CORPORATION, A CORP OF DELAWARE reassignment SPECIALTY ACQUISITION CORPORATION, A CORP OF DELAWARE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SPECIALTY PACKAGING PRODUCTS, INC., A CORP OF VA.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0032—Manually actuated means located downstream the discharge nozzle for closing or covering it, e.g. shutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle

Definitions

  • the screw cap and the rim portion of the overcap have cooperable ribs and grooves whereby the overcap can function as a wrench to screw the screw cap onto the threaded neck of a container. This eliminates a later assembly operation, and creates a new method of initial assembly.
  • This invention relates to small pump-type dispensers wherein the reciprocable pump assemblage is carried by a screw cap which is screwed onto the container neck.
  • dispensers of the kind indicated were sometimes provided with overcaps frictionally carried by the screw caps and enclosing the pump plunger to protect the same and prevent inadvertent or undesired actuation of the pump.
  • overcaps are especially useful on constructions wherein the pump plungers normally occupy raised positions, in readiness for immediate operation.
  • one object of the invention is to provide a novel and improved combination dispenser screw cap and pump together with overcap therefor, wherein no additional assembly operations are required after applying the screw cap to the filled container, and wherein an improved initial assembly method is evolved. This is accomplished by so constituting the screw cap and overcap that the latter can function as a wrench for the screw cap, and by attaching the overcap to the screw cap and pump assemblage prior to applying such assemblage to the filled container.
  • the knurling or ribbing which is conventionally provided on screw caps to constitute a finger grip, is utilized as part of a splining connection between the screw cap and overcap, to effect the drive therebetween.
  • the interior of the lower rim portion of the overcap has ribs or grooves or both which mesh with the ribbing to prevent relative turning between the caps while at the same time permitting easy application and removal of the overcap.
  • the method of the invention embraces applying the overcap to the screw cap and pump assemblage prior to the latter being screwed onto the filled container.
  • FIG. 1 is a view partly in axial section and partly in side elevation, of a pump-type dispenser provided with the improved screw cap and overcap combination of the invention.
  • FIG. 2 is a side elevational view of the screw cap and overcap assemblage as employed in FIG. 1.
  • FIG. 3 is an exploded view of the screw cap and overcap construction, the overcap being shown in axial section.
  • FIG. 4 is a fragmentary horizontal section, enlarged, taken on the line 4-4 of FIG. 1.
  • FIG. 5 is a view like that of FIG. 4, but illustrating a modified form of the invention.
  • FIG. 6 is a view partly in axial section and partly in side elevation, illustrating another modified form of screw cap and overcap assemblage.
  • FIG. 7 is a view partly in axial section and partly in side elevation, illustrating still another screw cap and overcap construction.
  • FIG. 8 is a view partly in axial section and partly in side elevation of yet another embodiment of the inven tion.
  • FIGS. l-4 there is illustrated a dispensing container or bottle 10 of the type having an externally threaded neck 12 with an annular shoulder 14 disposed below the neck 12.
  • a screw cap and pump assemblage Carried by the neck portion 12 of the container 10 is a screw cap and pump assemblage designated generally by the numeral 16 in FIG. 3.
  • the said assemblage comprises an inverted cup-shaped screw cap 18 having a Hat top or horizontal wall 20 and an annular internally threaded side wall 22 adapted to be screwed onto the threaded neck portion 12 of the container.
  • the top wall 20 of the screw cap 18 has a central opening, through which there extends the operating plunger 24 of a pump structure designated generally by the numeral 26 in FIG. 1.
  • the pump structure has a tubular housing or cylinder member 28 provided with an outturned flange 30 at its upper end, said flange being clamped between the top lip of the neck portion 12 of the container and the top wall 20 of the screw cap so as to securely mount the pump and plunger assemblage with the pump disposed in the upper portion of the container as shown.
  • the plunger 24 On its top, the plunger 24 has a finger piece or button 32 provided with an orifice 34 and so arranged that intermittent downward finger pressure on the button 32 will efiect a reciprocation of the plunger 24 and cause a discharge of liquid substance from the orifice piece 34.
  • the pump construction 26 includes a spring (not shown) which normally yieldably holds the plunger 24 in the raised position illustrated.
  • the lower end of the cylinder or housing member 28 of the pump is connected with a dip tube 36 which extends closely adjacent the bottom of the container 10, as will be understood, for the purpose of bringing liquid to the cylinder.
  • the overcap as applied to the screw cap and pump assemblage prior to the latter being screwed onto the container is constituted somewhat as a socket Wrench, in that it is utilized in a manner to effect the actual screwing on of the screw t cap and pump assemblage when the same is applied to the filled container.
  • the overcap is indicated generally by the numeral 38, and comprises an inverted cuplike structure having a transverse top Wall 40 and tapered 8 or conical tubular side wall 42 with a lower rim portion 44.
  • the rim portion 44 is adapted to be frictionally fitted over the annular side wall 22 of the screw cap 18. Additionally, the inside of the lower rim portion 44 is provided with a plurality of spaced straight ribs or beads 46 adapted to mesh with cooperable beads 48 on the exterior of the screw cap 18.
  • the beads or ribs 48 on the screw cap may constitute the conventional straight knurling usually provided on screw caps to function as a finger grip.
  • the beads or ribs 46, 48 thus are in the nature of splines, as can be clearly seen from an inspection of FIG. 4.
  • the bottom ends 50 of the ribs 46 are pointed or tapered, and by such organization in conjunction with the relatively thin or narrow construction of the external ribs 48 on the screw cap the mating or meshing of these is facilitated at the time that the overcap 38 is being applied to the screw cap assemblage.
  • the ribs do not extend completely to the bottom edge of the overcap, but instead there is a smooth or relieved lead area below the ribs; besides this, the narrow ribs 48 of the screw cap may also be provided with pointed upper ends 52, all as seen in FIG. 3.
  • the overcap 38 as well as the screw cap 18 are preferably made of molded plastic composition and have a certain amount of yieldability or give. As a consequence, and with the construction illustrated and explained above I have found that the overcap 38 can always be completely and quickly applied fully to the screw cap 18, either by human operators or else by machinery. If during such application there is not perfect alignment of the beads or ribs of one part with the spaces between the beads or ribs of the other part, this will not matter inasmuch as a slight relative shifting will occur due to the provision of the pointed rib ends, due to the relative widths of the ribs and also the shallow nature of the grooves disposed between the ribs.
  • the ribs 46 and 48 are not of great height, that is, they are separated by relatively shallow grooves. Such construction facilitates the applying of the overcap 38 to the screw cap 18 but does not impair the gripping or drivig action between these parts to any practical extent, whereby slippage will not occur during the screwing on of the assembled components to the filled container 10.
  • FIG. 1 there is illustrated a driving head 54 carried by a shank 56, said head being adapted to receive and confine the overcap 38 for the purpose of screwing the assamblage of overcap and screw cap onto the container 10.
  • the driving head 54 may be provided with a rubber or other non-slip liner 58 or with any other suitable means to minimize the likelihood of slippage between it and the overcap 38.
  • the assembly procedure after filling of the bottle 10 comprises applying the assembled overcap 38 and screw cap 18 together with the pump assemblage 26 to the filled container and thereafter screwing on such assemblage either by hand or else by means of a driving head such as the head 54 shown in FIG. 1.
  • the novel method provided by the invention involves the steps of applying the overcap 38 to the assembled screw cap and pump structure 16, filling the container 18 to the required level, applying the assemblage of overcap and screw cap with pump to the filled container, and thereafter applying a turning force to the overcap 38 to tightly screw the screw cap 18 onto the container 10.
  • Such applying of force to the overcap may be affected by bringing a hollow driving head in engagement with the overcap and thereafter turning the driving head, as is in part depicted in FIG. 1.
  • the driving head 54 extends downward a distance sufficient to enable it to also encircle the lower rim portion 44 of the overcap 38, a reinforcement of such rim portion will be effected whereby there is minimized any likelihood of slippage or stripping of the cooperable ribs 46, 48 past each other.
  • FIG. 5 A modification of the invention as illustrated in FIG. 5, wherein the screw cap 18a having the top wall 20a is provided with relatively wide ribs 48a separated by relatively narrow grooves, and wherein the lower rim portion 44a of the overcap 38a is provided with relatively narrows ribs 46a separated by relatively wide grooves.
  • the modification illustrated in FIG. 5 functions substantially in a manner similar to that already described above in conjunction with FIGS. 1-4.
  • FIG. 6 Another embodiment of the invention is illustrated in FIG. 6, wherein a container 60 having a threaded neck 62 carries a dispensing pump 64 which is secured in place by a screw cap 66. Carried by the cap 66 is a rim 68 to which there is connected, by frangible webs 70, an actuator button 72 having an orifice piece 74. The button 72 is connected to the pump plunger 76 to actuate the latter in the well-known manner.
  • the screw cap '66 has an annular flange 78 provided with knurling or ribs, which are cooperable with internal ribs 80 on the inside of an overcap 82 which surrounds the actuator button 72 and also the screw cap 66.
  • the overcap 82 thus has a driving connection with the screw cap 66 to enable it to be used in the manner of a socket wrench, for the purpose of screwing the screw cap and pump assemblage onto the filled container 60, in a manner already described above.
  • FIG. 7 Another embodiment of the invention is illustrated in FIG. 7.
  • a screw cap 84 in which there is mounted a pump assemblage 86 having a plunger 88 carrying an actuator button 90 provided with a discharge orifice 92.
  • the screw cap 84 carries a conical protective member 94 which extends around the button 90 and has a removable top piece 96 connected by frangible webs to the member 94.
  • the top piece 96 constitutes a tamper-proof feature, and is removed and discarded by the consumer prior to the first use of the dispenser.
  • the screw cap 84 has an annular flange 98 provided with knurling or ribs 99 which are cooperable with internal ribs 100 provided on the inside of an overcap 102.
  • the overcap 102 can constitute a socket wrench or driving piece, for screwing the screw cap 84 and pump assemblage onto the filled container.
  • FIG. 8 Yet another embodiment of the invention is illustrated in FIG. 8.
  • the filled container 104 has a screw cap 106 mounting a pump assemblage 108 which includes a plunger 110.
  • a tubular upward extension 112 On the screw cap 106 is a tubular upward extension 112 having an enlarged lower rim portion 114 provided with external knurling or ribs 116.
  • An actuator button 118 is connected with the upward extension 112 by frangible webs 120, said button having an orifice piece 122. When the button 118 is depressed it will break the frangible webs 120 and can thereafter actuate the plunger 110 with a pumping action to effect a discharge from the orifice piece 122.
  • an overcap 124 Enclosing the screw cap and button assemblage is an overcap 124 having a lower rim portion 126 provided with ribs 128 arranged for meshing engagement with the ribs 116 of the enlarged rim 114 of the extension 112.
  • the overcap 124 can constitute a driving socket wrench, for screwing the assemblage of pump and screw cap 108, 106, 112 onto the filled container 104.
  • the operation of the embodiments of the invention illustrated in FIGS. 6, 7 and 8 will be understood as substantially the same as that described for the embodiment of FIGS. 1-5.
  • the lower portion of the overcap has interior knurling or ribs which are cooperable with exterior knurling or ribs provided on an assemblage of screw cap and pump, whereby the overcap can constitute a driving wrench to screw on the screw cap and pump to the filled container.
  • the overcap is accordingly applied to the assemlage of screw cap and pump prior to the latter being assembled to the filled container.
  • overcap and screw cap with pump is especially simple, economical to fabricate, and capable of reliable operation without malfunctioning.
  • the organization provided there is eliminated the extra step of applying the overcap after the screw cap and pump assemblage has been assembled to the filled container.
  • a protected dispenser cap construction including, in
  • a screw cap comprising an inverted cup-shaped body having an annular side wall provided with internal screw threads for engagement with the threads of a container neck to secure the cap thereon,
  • a reciprocable pump construction carried by said cap and including a plunger passing through the top wall of the cap and projecting upward therefrom,
  • an overcap comprising an inverted cup adapted to surround the plunger which extends upward from the screw cap
  • said overcap having a bottom rim portion forcefully frictionally engaged with and completely around the exterior of the annular side wall of the screw cap, said engagement etfecting at all times a driving connection between the overcap and screw cap and constituting essentially the entire support of the overcap in operative position on the screw cap, said engagement further constituting the sole retention means of the overcap on the screw cap,
  • each one of said caps having a relieved circumferential surface adjoining the spline means thereof and constituting a free lead area engageable by the other cap,
  • said cooperable spline means comprising ribs having tapered ends, said tapered ends and free lead areas facilitating assembly of the overcap on the screw cap.
  • the ribs on one cap are broader than the ribs on the other cap to facilitate assembly of the overcap on the screw cap.
  • said cooperable spline means comprising ribs and grooves disposed on and in said annular flange.
  • said screw cap includes an upward tubular extension having an enlarged annular base portion
  • said cooperable spline means comprising ribs and grooves disposed on and in said annular base portion.
  • the upward extension of the screw cap comprises a member separate from the threaded portion of the screw cap
  • said cooperable spline means comprising ribs and grooves on said upward tubular extension.
  • said upward extension of the screw cap has an annular exterior flange on and in which said ribs SAMUEL F. COLEMAN Primary Examiner and grooves are disposed.

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US678433A 1967-10-26 1967-10-26 Dispenser screw cap and overcap Expired - Lifetime US3526343A (en)

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Application Number Priority Date Filing Date Title
US67843367A 1967-10-26 1967-10-26

Publications (1)

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US3526343A true US3526343A (en) 1970-09-01

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ID=24722769

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Application Number Title Priority Date Filing Date
US678433A Expired - Lifetime US3526343A (en) 1967-10-26 1967-10-26 Dispenser screw cap and overcap

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US (1) US3526343A (xx)
BE (1) BE722926A (xx)
CH (1) CH486367A (xx)
DE (1) DE1803012A1 (xx)
ES (1) ES359099A1 (xx)
FR (1) FR1589511A (xx)
GB (1) GB1194104A (xx)
NL (1) NL6815186A (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861570A (en) * 1970-08-10 1975-01-21 Green Edward Variable spray rate aerosol valve construction
US3907171A (en) * 1973-12-19 1975-09-23 Cypro Inc Container with slip-on cap retaining means
US5271532A (en) * 1990-04-19 1993-12-21 Bernard Jumel Hand pump utilizing press fit components for sealing and closure
US7438204B2 (en) 2005-10-13 2008-10-21 S. C. Johnson & Son, Inc. Apparatus for dispensing a granular product from a container
US20150102069A1 (en) * 2013-10-16 2015-04-16 Maitrise & Innovation Packaging and dispensing device comprising a clearance compensation cover
USD763093S1 (en) * 2014-09-18 2016-08-09 Method Products, Pbc Bottle
US10363566B2 (en) * 2015-05-13 2019-07-30 Aptar Radolfzell Gmbh Discharge head for a dispenser for discharging a fluid and dispenser comprising a discharge head of this type and securing section for a discharge head of this type

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA79280B (en) * 1978-02-28 1980-05-28 Afa Corp Universal body variable shroud dispenser

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148805A (en) * 1962-07-31 1964-09-15 Calmar Inc Liquid dispenser
US3263869A (en) * 1964-11-03 1966-08-02 Calmar Inc Liquid dispenser with overcap
US3293938A (en) * 1964-08-24 1966-12-27 Leonard R Nestor Handle
US3396604A (en) * 1966-04-25 1968-08-13 Chicago Specitalty Mfg Co Faucet handled assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148805A (en) * 1962-07-31 1964-09-15 Calmar Inc Liquid dispenser
US3293938A (en) * 1964-08-24 1966-12-27 Leonard R Nestor Handle
US3263869A (en) * 1964-11-03 1966-08-02 Calmar Inc Liquid dispenser with overcap
US3396604A (en) * 1966-04-25 1968-08-13 Chicago Specitalty Mfg Co Faucet handled assembly

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861570A (en) * 1970-08-10 1975-01-21 Green Edward Variable spray rate aerosol valve construction
US3907171A (en) * 1973-12-19 1975-09-23 Cypro Inc Container with slip-on cap retaining means
US5271532A (en) * 1990-04-19 1993-12-21 Bernard Jumel Hand pump utilizing press fit components for sealing and closure
US7438204B2 (en) 2005-10-13 2008-10-21 S. C. Johnson & Son, Inc. Apparatus for dispensing a granular product from a container
US20150102069A1 (en) * 2013-10-16 2015-04-16 Maitrise & Innovation Packaging and dispensing device comprising a clearance compensation cover
US9233383B2 (en) * 2013-10-16 2016-01-12 Maitrise & Innovation Packaging and dispensing device comprising a clearance compensation cover
USD763093S1 (en) * 2014-09-18 2016-08-09 Method Products, Pbc Bottle
US10363566B2 (en) * 2015-05-13 2019-07-30 Aptar Radolfzell Gmbh Discharge head for a dispenser for discharging a fluid and dispenser comprising a discharge head of this type and securing section for a discharge head of this type

Also Published As

Publication number Publication date
CH486367A (fr) 1970-02-28
FR1589511A (xx) 1970-03-31
BE722926A (xx) 1969-04-25
GB1194104A (en) 1970-06-10
NL6815186A (xx) 1969-04-29
DE1803012A1 (de) 1969-06-19
ES359099A1 (es) 1970-07-01

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SPECIALTY PACKAGING PRODUCTS, INC.

Free format text: CHANGE OF NAME;ASSIGNOR:ETHYL PRODUCTS COMPANY;REEL/FRAME:004233/0852

Effective date: 19840201

AS Assignment

Owner name: UNITED VIRGINIA BANK A VA BANKING CORP

Free format text: SECURITY INTEREST;ASSIGNOR:SPECIALTY PACKAGING PRODUCTS, INC. A VA CORP;REEL/FRAME:004234/0112

Effective date: 19840201

AS Assignment

Owner name: SPECIALTY ACQUISITION CORPORATION, 804 MOOREFIELD

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SPECIALTY PACKAGING PRODUCTS, INC., A CORP OF VA.;REEL/FRAME:004535/0086

Effective date: 19860331

Owner name: SPECIALTY PACKAGING LICENSING COMPANY, 1209 ORANGE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SPECIALTY ACQUISITION CORPORATION, A CORP OF DE.;REEL/FRAME:004538/0400

Effective date: 19860228