US2901139A - Sealing disc for metallic cap closures, crown closures or the like - Google Patents
Sealing disc for metallic cap closures, crown closures or the like Download PDFInfo
- Publication number
- US2901139A US2901139A US559445A US55944556A US2901139A US 2901139 A US2901139 A US 2901139A US 559445 A US559445 A US 559445A US 55944556 A US55944556 A US 55944556A US 2901139 A US2901139 A US 2901139A
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- Prior art keywords
- disc
- sealing
- closures
- bottle
- pad
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- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title description 48
- 239000011324 bead Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 7
- -1 polyethylene Polymers 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 235000013361 beverage Nutrition 0.000 description 2
- 239000007799 cork Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 101100400378 Mus musculus Marveld2 gene Proteins 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000021485 packed food Nutrition 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
Classifications
-
- 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
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
- B65D53/04—Discs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S215/00—Bottles and jars
- Y10S215/01—Fins
Definitions
- the present invention relates to closures, particularly to closures for food and beverage containers, such as crown closures, metallic cap closures, screw-on closures and the like, and especially, to sealing means therefor.
- the material of the seal must meet the absolute requirement that the seal may in no way affect the smell and taste of the contents of the bottle or jar.
- Materials which fully satisfy this condition are, for example, certain plasticizer-free artificial substances, especially polyethylene.
- Polyethylene has the disadvantage that it is to a certain extent permeable to gas, which normally would render the material unsuitable for sealing vacuum and pressure packed foods and beverages, particularly the latter.
- a polyethylene seal suitably a sealing disc
- a sealing disc is effectively rendered impermeable to gas by the provision of contact surfaces on the disc engageable with the top face of the bottle and with the inner surface of the metallic cap which are kept as small as possible, the mutual contact of these parts prior to pressing of the cap onto the container being substantially linear.
- the linear seal above defined may be obtained by providing a sealing disc having a thin central portion with an annular pad surrounding the same, the pad preferably being circular, elliptical, or square in cross-section, or if desired, comprising a plurality of concentric annular pads. It has been found that a pad of elliptical cross-section is particularly capable of withstanding extremely high pressure wi-thin a container.
- the sealing disc need include only a small portion of predetermined thickness in the region of the sealing zone, dependent on the species and properties of the selected material. For this reason it is possible in the remaining regions of the seal to maintain the sealing disc relatively thin, since the central portion of the disc serves only to prevent contact of the contents of the container with the metallic cap, and since the marginal portion of the disc need serve nomore than to assist the cap onto the bottle, the contact line of the disc 2,901,139 Patented Aug. 25 195 9 in retaining the seal in the cap and, in certain cases, to prevent the metal cap from hearing directly on the mouth or lip of the container. Accordingly, the sealing inserts or discs may be manufactured in an extremely economical manner.
- a further feature of the invention is the provision of sealing discs formed in such manner as to be quite symmetrical with respect to the horizontal median plane of the seal.
- the disc of the invention must therefore be anchored in the closure in another manner, and to this end, I employ the edge of the seal as a lateral contact surface for engagement in the metallic cap.
- the outer diameter of the sealing disc must, on one hand, be somewhat greater than the inner diameter of the metallic cap and must, on the other hand, be given a special shape for efiecting a tension and friction grip in the cap.
- the stated object is suitably achieved by thickening or cormgating the outer marginal zone of the sealing disc, or providing it with serrations.
- the present invention lies consequently in the combination of the features that the sealing disc is quite symmetrical with respect to the median plane, has a thin central portion with an annular pad surrounding the same, and has a marginal rim surrounding the pad, the pad having linear contact with respect to the mouth of the bottle and the metallic cap prior to the pressing of He t nowadays mea t e nne diam er cine-me p d. s ge q .q f% cd net d: cr thi ken d, .BYP L E i Q. t ese. eq ined v e re tg e e am litnum eifect is obtained.
- n. th d a s; .i H figure 1 is a cross-sectibnal view of the neck pr mouth of a bottle, a crown closure, and pneembodiment of the improved seal of the i nve ntion, the closure and seal being shown as set on the bottle, but not secured hsa tqw H. r, n 1 Figure 2 is a plan view of the sealing disc'of Figure l; and r Fighre ⁇ is a cross sectional view of a second embodiment of my improved sealing disc.
- the sealing disc comprises a thin circular central portion 1, an annular pad 2 surrounding the central portion, and a rim 4 surrounding the pad 2, the being separated from thepad Z by'a thin annular flexible portion 1a of the disc,
- the pad 2 is shown in Figures land 2 as being elliptical in cross sectio'n, but the same'may suitably be of circular or square cross-section, ormay suitably comprise a plurality of concentric ridges, beads or; pads, as shown at 2:1 in Eigui-e
- the pad 2 contacts the mouth of the bottle'alon'g the circular line 5 and contacts the cap along the circular line 6,.the contact line Slying nearer to the opening 7 in the bottle than to the HP 8 of the bottle.
- the rim 4 of the disc the inner diameter of the'clo'sure, and the riin is
- the seal is formed ofpla'sticizer free polyethylene.
- the sealing disc of Figure 3 is compressed in the area of the pad thereof with each of the ridges or beads Za'defining a very small area annular sealing surface for the purposes stated.v
- the ridges are in herently more flexible than a solid pad and thus are optimumly suited for sealing against irregular surfaces sueh as the mouth of a glass bottle.
- the head or rim 4 is of a diam eter greater thanflthe inner diameter of therim portion of the closure to be fitted frictionally therein, thethin annular portion between the .rim' and pad flexing, and the rim itself having a relatively large peripheral'su r face area, to insure a retentive fit of the disc in the closure.
- the rim 4, upon attachment of the closure to thebottle, is forced into small sui'face area sealingengagement with the outer portions of the mouth of t-he, bottle to afford a s'econdary'seal'a'nda secondary area of high compression acting as a safeguar'd'to the" seal etfectedat the pad Zor 2a.
- the. invention is far superior to the conventional cork disc seal, since the seal of the invention is capable of withstanding higher internal pressures.
- the present invention afiords a sealing disc formed of plastic materials which satisfies all the requirements to tastelessness, gas impermeability, tightness, saving in material, and fiirhat- 1 tachment of the-disc within the cap or closure.
- a sealing disc for bottle closures and the like comprising a generally planar polyethylene disc, said disc Being symmetrical in relation to the median thereof and including a thin circular central portion, an annular pad encircling said central portion,;saidpad being of elliptical shape in cross-section and 'de'fining a line contact on fipposite sides thereoffor engagement, respectively, with the mouth of a bottle and the inner surface of a closure prior to attachment of the closure to the bottle, the line contact on said pad for' e gage: ment with the mouth of the bottle being at most of a diameter equal approximately to the diameter of the bottleopening plus twice of the thickness of the wallof the bottle El'efiiiingth'e opening, a thin annula portion encircling said pad, and annular marginal rim encircling said last naniedfportion, said riin'being of an outer diameter" greater than the inner nam of the crest-ire and being headed t define 'n said disc a ma'rgina
- the outer sealings urface on said pad for bottle being at nit 5st of" nowadays diameter equal approximately to the diameter of the bottle opening plus twice 75% of the thickness of the wall of the bottle defining the opening; a thin an nular'portion encircling said pad, and an annular'niarginal encircling sa'id last-named portion, said rim being of an outer diameter greater than the inner diam; eter of the closure and being'beaded to define on said disc a marginal edge of substantial area and to define the outer margin thicker than the thin annular portion, said thin annular portion further spacing said beaded marginal rin:i from the outermost of said coii cen tric beads, said rim being adapted to be fitted frictionally within the closure and to engage the closure overa' substantial area by the action of said thin annular portion and said beaded marginal edge de'tachably to secufe'thes eal within the closure.
- a seal for a closure comprising a disc including a thin circular central portion, an annular sealing pad encircling said central portion, a thin flexible annular portion encircling said pad, and an annular marginal bead encircling said thin flexible annular portion, said annnular sealing pad being of greater thickness transversely of said disc than said annular marginal bead, said head being of an outer diameter greater than the inner diameter of the closure and having an outer edge of substantial area to fit frictionally within and engage the side wall of the closure, said thin flexible annular portion and said edge of said bead insuring a retentive fit of said disc in the closure.
- a seal for crown type bottle closures and the like comprising a general-1y planar imperforate plastic disc, said disc being symmetrical in relation to both its median plane and its axis and including a thin circular central portion, an annular sealing pad encircling said central portion anddefining circular sealing surfaces on the opposite sides thereof for engagement, respectively, with the mouth of a bottle and the inner surface of a crown closure, a thin flexible annular portion encircling said pad, and an annular marginal bead encircling said thin flexible annular portion, said annular sealing pad being of greater thickness transversely of said disc than said annular marginal bead, said bead being of an outer diameter greater than the inner diameter of the closure and having an outer edge of substantial area to fit frictionally within and engage the side wall of the closure, said thin flexible annular portion and said edge of said bead insuring a retentive fit of said disc in the closure.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Description
GER 2,901,139 P CLOSURES, CROWN Aug. 25, 1959' A. ISELEAREG SEALING DISC FOR METALLIC CA INVENTOR. W720 @626 -U/Zgg 99i 'DJMwM United States Patent 6 SEALING DISC FOR METALLIC CAP CLOSURES,
CROWN CLOSURES OR THE LIKE Alfons Isele-Aregger, Immensee, Canton Schwyz, Switzerland, assignor, by mesne assignments, to Union Carbide Corporation, a corporation of New York Application January 16, 1956, Serial No. 559,445 Claims priority, application Germany January 26, 1955 5 Claims. (Cl. 21540) The present invention relates to closures, particularly to closures for food and beverage containers, such as crown closures, metallic cap closures, screw-on closures and the like, and especially, to sealing means therefor.
The present application is a continuation-in-pant of my prior copending application Serial No. 365,842, filed July 3, 1953, on Bottle Closures.
The problem of replacing the well-known cork sealing disc in metallic cap closures, crown closures, or the like by other materials has, since the development of the plastic industry, been the subject of a great many con siderations. Many proposals 'have found expression in patent literature of remarkable importance, but nevertheless, a really practical sealing disc meeting with full success has not heretofore been afforded.
In the case of food products, the material of the seal must meet the absolute requirement that the seal may in no way affect the smell and taste of the contents of the bottle or jar. Materials which fully satisfy this condition are, for example, certain plasticizer-free artificial substances, especially polyethylene. Polyethylene, however, has the disadvantage that it is to a certain extent permeable to gas, which normally would render the material unsuitable for sealing vacuum and pressure packed foods and beverages, particularly the latter.
According to the present invention, a polyethylene seal, suitably a sealing disc, is effectively rendered impermeable to gas by the provision of contact surfaces on the disc engageable with the top face of the bottle and with the inner surface of the metallic cap which are kept as small as possible, the mutual contact of these parts prior to pressing of the cap onto the container being substantially linear. By virtue of this relationship, after the cap has beenpressed onto the container, a high specific pressure will be obtained in the narrow contact zone. The sealing material, accordingly, is compressed to a very substantial extent in the contact zone, thus to prevent passage of gas therethrough.
In practice, the linear seal above defined may be obtained by providing a sealing disc having a thin central portion with an annular pad surrounding the same, the pad preferably being circular, elliptical, or square in cross-section, or if desired, comprising a plurality of concentric annular pads. It has been found that a pad of elliptical cross-section is particularly capable of withstanding extremely high pressure wi-thin a container.
Inasmuch as the seal according to the invention takes place in a small area or region at high specific pressure, the sealing disc need include only a small portion of predetermined thickness in the region of the sealing zone, dependent on the species and properties of the selected material. For this reason it is possible in the remaining regions of the seal to maintain the sealing disc relatively thin, since the central portion of the disc serves only to prevent contact of the contents of the container with the metallic cap, and since the marginal portion of the disc need serve nomore than to assist the cap onto the bottle, the contact line of the disc 2,901,139 Patented Aug. 25 195 9 in retaining the seal in the cap and, in certain cases, to prevent the metal cap from hearing directly on the mouth or lip of the container. Accordingly, the sealing inserts or discs may be manufactured in an extremely economical manner.
Special attention is directed to the arrangement of the annular pad. Heretofore, those skilled in the art have been of the opinion that the seal on bottles with crown closures must take place in the outer region of the mouth or lip of the bottle, and preferably at the point where the mouth or lip is inclined, as defined by the inclination of the tangent of that surface toward the horizontal, at an angle of about 45 or more, the seal being effected over a large area commencing at the point indicated and extending inwardly approximately to a diameter corresponding to the inner diameter of the mouth of the bottle plus twice half the thickness of the wall defining the mouth or lip of the bottle.
Extensive tests have shown that this generally prevailing opinion is erroneous and that an appreciably better seal in cap closures of all kinds will be obtained if the sealing area is maintained small and the diameter of the line of sealing engagement, as provided according to the invention, is at most equal approximately to the inner diameter of the mouth of the bottle plus twice of the thickness of the wall of the mouth or sealing lip. Sealing discs designed in accordance with the present invention withstand pressures which are approximately twice as high as those obtained with sealing discs of conventional forms.
A further feature of the invention is the provision of sealing discs formed in such manner as to be quite symmetrical with respect to the horizontal median plane of the seal. Thus, insertion of the sealing discs into metallic caps is appreciably simplified, inasmuch as both surfaces of the disc are identical, and it is therefore immaterial how the discs are inserted in a cap. The defined symmetry permits of simplified handling of the seals on crown cap assembly machines and the like particularly as compared to the unsymmetrical discs proposed heretofore.
In the industry concerned, it has heretofore been a problem to assemble a sealing disc with a metallic cap is entirely excluded, because a hollow space exists between the metallic cap and the sealing disc in the central area of the seal due to the symmetry of the relatively thick sealing pad. The disc of the invention must therefore be anchored in the closure in another manner, and to this end, I employ the edge of the seal as a lateral contact surface for engagement in the metallic cap. In order to attain the desired adhesion, the outer diameter of the sealing disc must, on one hand, be somewhat greater than the inner diameter of the metallic cap and must, on the other hand, be given a special shape for efiecting a tension and friction grip in the cap. The stated object is suitably achieved by thickening or cormgating the outer marginal zone of the sealing disc, or providing it with serrations.
The present invention lies consequently in the combination of the features that the sealing disc is quite symmetrical with respect to the median plane, has a thin central portion with an annular pad surrounding the same, and has a marginal rim surrounding the pad, the pad having linear contact with respect to the mouth of the bottle and the metallic cap prior to the pressing of He t?! mea t e nne diam er cine-me p d. s ge q .q f% cd net d: cr thi ken d, .BYP L E i Q. t ese. eq ined v e re tg e e am litnum eifect is obtained. Among other things, itwill be pqe h ltqlbave he. me ll cqan' d s n q w hin e wherebysubstantial sayings of material aremade, he ob c s..a d,,. dy t s 9 he in en o will gi nimr n 0. ski l i t e an and l becom 'in entin he fo win e c i nn a. pr err d l q me lt l e nventi n whe e i e cn e smad t fl eaq pslb i y a rew n rshcw sabv y ainple, preferred embodiments of the invention.
n. th d a s; .i H figure 1 is a cross-sectibnal view of the neck pr mouth of a bottle, a crown closure, and pneembodiment of the improved seal of the i nve ntion, the closure and seal being shown as set on the bottle, but not secured hsa tqw H. r, n 1 Figure 2 is a plan view of the sealing disc'of Figure l; and r Fighre} is a cross sectional view of a second embodiment of my improved sealing disc.
As shown the sealing disc comprises a thin circular central portion 1, an annular pad 2 surrounding the central portion, and a rim 4 surrounding the pad 2, the being separated from thepad Z by'a thin annular flexible portion 1a of the disc, The pad 2 is shown in Figures land 2 as being elliptical in cross sectio'n, but the same'may suitably be of circular or square cross-section, ormay suitably comprise a plurality of concentric ridges, beads or; pads, as shown at 2:1 in Eigui-e When positioned as shown in Figure .1, wherein the seal is rested on the mouth ofthe bottle, and the cap is rested'on the seal, the pad 2 contacts the mouth of the bottle'alon'g the circular line 5 and contacts the cap along the circular line 6,.the contact line Slying nearer to the opening 7 in the bottle than to the HP 8 of the bottle. To insure a firm frictional, adhesive fit of the disc within the metallic cap 3, the rim 4 of the disc the inner diameter of the'clo'sure, and the riin is beaded.
.When the closure 3 is secured to the lip 8 of'the bottle, the sealing disc of Figures 1 and 2 is com-' pressed to' a substantial extent in the area of the pad 2 thereof to define small area annular sealing surfaces on the opposite sides of the pad engaging respectively against the mouth of the bottle and the inner surface of the closure. Due to the small area of contact, sealing pressure per unit-"area is high and the pad 2 is com:
pressedto render the same impermeable to gas even.
though the seal is formed ofpla'sticizer free polyethylene. In like manner,- the sealing disc of Figure 3 is compressed in the area of the pad thereof with each of the ridges or beads Za'defining a very small area annular sealing surface for the purposes stated.v The ridges are in herently more flexible than a solid pad and thus are optimumly suited for sealing against irregular surfaces sueh as the mouth of a glass bottle.
In'both embodiments, the head or rim 4 is of a diam eter greater thanflthe inner diameter of therim portion of the closure to be fitted frictionally therein, thethin annular portion between the .rim' and pad flexing, and the rim itself having a relatively large peripheral'su r face area, to insure a retentive fit of the disc in the closure. Moreover, the rim 4, upon attachment of the closure to thebottle, is forced into small sui'face area sealingengagement with the outer portions of the mouth of t-he, bottle to afford a s'econdary'seal'a'nda secondary area of high compression acting as a safeguar'd'to the" seal etfectedat the pad Zor 2a.
has an outer diameter greater than.
48 $1 1 5 .f l'm da' hesealinsd c...0f. the. invention is far superior to the conventional cork disc seal, since the seal of the invention is capable of withstanding higher internal pressures. Moreover, the present invention afiords a sealing disc formed of plastic materials which satisfies all the requirements to tastelessness, gas impermeability, tightness, saving in material, and fiirhat- 1 tachment of the-disc within the cap or closure.
engagement with the mouth of the While I have shown what I regard to be the preferred embodiments otniy inv'ention, and have described these and other suitable embodiments of the invention; itis apparent that various changes, rearrangements and modifications'rnay be made"therein without departing from the scope of the invention, as defined by the appended claims.
I claim:
1. A sealing disc for bottle closures and the like, comprising a generally planar polyethylene disc, said disc Being symmetrical in relation to the median thereof and including a thin circular central portion, an annular pad encircling said central portion,;saidpad being of elliptical shape in cross-section and 'de'fining a line contact on fipposite sides thereoffor engagement, respectively, with the mouth of a bottle and the inner surface of a closure prior to attachment of the closure to the bottle, the line contact on said pad for' e gage: ment with the mouth of the bottle being at most of a diameter equal approximately to the diameter of the bottleopening plus twice of the thickness of the wallof the bottle El'efiiiingth'e opening, a thin annula portion encircling said pad, and annular marginal rim encircling said last naniedfportion, said riin'being of an outer diameter" greater than the inner nam of the crest-ire and being headed t define 'n said disc a ma'rginal edge of substantial area, said rir'n being adapted to be fitted frietionally within theclosure and to engage the closure over a substantial area detachably to secure the seal within the closure. I i
2. Af'sealing disc for bottle closures and the like, comprising a generally planar polyethylene disc, said disc being symmetrical in relation to the median plane thereof and including a thin circular centralportion, an
tral portion, the outer sealings urface on said pad for bottle being at nit 5st of"?! diameter equal approximately to the diameter of the bottle opening plus twice 75% of the thickness of the wall of the bottle defining the opening; a thin an nular'portion encircling said pad, and an annular'niarginal encircling sa'id last-named portion, said rim being of an outer diameter greater than the inner diam; eter of the closure and being'beaded to define on said disc a marginal edge of substantial area and to define the outer margin thicker than the thin annular portion, said thin annular portion further spacing said beaded marginal rin:i from the outermost of said coii cen tric beads, said rim being adapted to be fitted frictionally within the closure and to engage the closure overa' substantial area by the action of said thin annular portion and said beaded marginal edge de'tachably to secufe'thes eal within the closure. 7
3.;A seal for crown type bottle closures and the like, firing a generally planar imperforate polyethylene said isc being symmetrical in relation to both its med an'plan andits axis and including athin c'irc' central 'pbrtion'; annular sealing rne ans enci'r c g said central portion and defining circular sealing""surfaces" on the opposite sides thereof for engagement, respectively, with the mouth of a bottle and the inner surface of a crown closure, said sealing surfaces on each side being spaced apart in the form of concentric ridges, a thin flexible annular portion encircling said annular sealing means, and an annular marginal bead encircling said thin flexible annular portion, said thin annular portion having a radial width at least equal to the radial width of said annular marginal bead, said bead being of an outer diameter greater than the inner diameter or the closure and being of a thickness greater than the thickness of the thin annular portion, and having an outer edge of substantial area to fit frictionally within and engage the side wall of the closure, said thin flexible annular portion and said edge of said bead cooperating to assist in accomplishing a retentive fit of said disc in the closure.
4. A seal for a closure comprising a disc including a thin circular central portion, an annular sealing pad encircling said central portion, a thin flexible annular portion encircling said pad, and an annular marginal bead encircling said thin flexible annular portion, said annnular sealing pad being of greater thickness transversely of said disc than said annular marginal bead, said head being of an outer diameter greater than the inner diameter of the closure and having an outer edge of substantial area to fit frictionally within and engage the side wall of the closure, said thin flexible annular portion and said edge of said bead insuring a retentive fit of said disc in the closure.
5. A seal for crown type bottle closures and the like, comprising a general-1y planar imperforate plastic disc, said disc being symmetrical in relation to both its median plane and its axis and including a thin circular central portion, an annular sealing pad encircling said central portion anddefining circular sealing surfaces on the opposite sides thereof for engagement, respectively, with the mouth of a bottle and the inner surface of a crown closure, a thin flexible annular portion encircling said pad, and an annular marginal bead encircling said thin flexible annular portion, said annular sealing pad being of greater thickness transversely of said disc than said annular marginal bead, said bead being of an outer diameter greater than the inner diameter of the closure and having an outer edge of substantial area to fit frictionally within and engage the side wall of the closure, said thin flexible annular portion and said edge of said bead insuring a retentive fit of said disc in the closure.
References Cited in the file of this patent UNITED STATES PATENTS 785,116 Perry Mar. 21, 1905 2,073,415 Enkur Mar. 9, 1937 2,765,943 Wolfi Oct. 9, 1956 FOREIGN PATENTS 162,427 Australia Apr. 13, 1955 523,527 Belgium Oct. 31, 1953 1,020,206 France Nov. 12, 1952
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE2901139X | 1955-01-26 |
Publications (1)
Publication Number | Publication Date |
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US2901139A true US2901139A (en) | 1959-08-25 |
Family
ID=8000790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US559445A Expired - Lifetime US2901139A (en) | 1955-01-26 | 1956-01-16 | Sealing disc for metallic cap closures, crown closures or the like |
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US (1) | US2901139A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3051769A (en) * | 1959-07-17 | 1962-08-28 | Accumulateurs Fixes | Leakproof primary or secondary celland process for manufacturing the same |
US3087639A (en) * | 1958-09-12 | 1963-04-30 | Union Carbide Corp | Container closure |
US3147874A (en) * | 1961-04-03 | 1964-09-08 | Grace W R & Co | Seal for crown closures |
US3169656A (en) * | 1961-04-17 | 1965-02-16 | Wieckmann Gerhard | Bottle closure |
US3190482A (en) * | 1962-12-31 | 1965-06-22 | Union Carbide Corp | Sealing disc for container closure |
US3208617A (en) * | 1964-10-12 | 1965-09-28 | Robert R Baron | Container closure means |
US3300072A (en) * | 1965-10-21 | 1967-01-24 | Hoosier Crown Corp | Sealing of crown cap bottles |
US3331523A (en) * | 1965-02-15 | 1967-07-18 | Gilbert Mfg Company | Container closure member and liner therefor |
US3710794A (en) * | 1971-06-16 | 1973-01-16 | W Shields | Recessed diaphragm with annular grooves for hypodermic syringes |
US5330068A (en) * | 1993-07-06 | 1994-07-19 | Ford Motor Company | Fuel tank closure assembly |
US20020162818A1 (en) * | 2001-05-04 | 2002-11-07 | Williams Charles L. | Beverage container closure |
US20060138141A1 (en) * | 2004-12-17 | 2006-06-29 | Stolzman Michael D | Reduced thickness cover |
US20100109260A1 (en) * | 2008-10-31 | 2010-05-06 | Ti Group Automotive Systems, L.L.C. | Ring seal with insert |
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BE523527A (en) * | 1952-10-15 | |||
US785116A (en) * | 1904-03-11 | 1905-03-21 | Edward L Perry | Gasket or packing-ring and apron therefor. |
US2073415A (en) * | 1934-10-05 | 1937-03-09 | Crown Cork & Seal Co | Container cap, cap liner, and method of applying liners to container caps |
FR1020206A (en) * | 1950-03-27 | 1953-02-03 | Kihm Georges Achille | Seal, lid or stopper for closing jars, jars, bottles or other containers and its manufacturing process |
US2765943A (en) * | 1949-12-30 | 1956-10-09 | Wolff Franz | Closures for containers |
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1956
- 1956-01-16 US US559445A patent/US2901139A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US785116A (en) * | 1904-03-11 | 1905-03-21 | Edward L Perry | Gasket or packing-ring and apron therefor. |
US2073415A (en) * | 1934-10-05 | 1937-03-09 | Crown Cork & Seal Co | Container cap, cap liner, and method of applying liners to container caps |
US2765943A (en) * | 1949-12-30 | 1956-10-09 | Wolff Franz | Closures for containers |
FR1020206A (en) * | 1950-03-27 | 1953-02-03 | Kihm Georges Achille | Seal, lid or stopper for closing jars, jars, bottles or other containers and its manufacturing process |
BE523527A (en) * | 1952-10-15 |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3087639A (en) * | 1958-09-12 | 1963-04-30 | Union Carbide Corp | Container closure |
US3051769A (en) * | 1959-07-17 | 1962-08-28 | Accumulateurs Fixes | Leakproof primary or secondary celland process for manufacturing the same |
US3147874A (en) * | 1961-04-03 | 1964-09-08 | Grace W R & Co | Seal for crown closures |
US3169656A (en) * | 1961-04-17 | 1965-02-16 | Wieckmann Gerhard | Bottle closure |
US3190482A (en) * | 1962-12-31 | 1965-06-22 | Union Carbide Corp | Sealing disc for container closure |
US3208617A (en) * | 1964-10-12 | 1965-09-28 | Robert R Baron | Container closure means |
US3331523A (en) * | 1965-02-15 | 1967-07-18 | Gilbert Mfg Company | Container closure member and liner therefor |
US3300072A (en) * | 1965-10-21 | 1967-01-24 | Hoosier Crown Corp | Sealing of crown cap bottles |
US3710794A (en) * | 1971-06-16 | 1973-01-16 | W Shields | Recessed diaphragm with annular grooves for hypodermic syringes |
US5330068A (en) * | 1993-07-06 | 1994-07-19 | Ford Motor Company | Fuel tank closure assembly |
US20020162818A1 (en) * | 2001-05-04 | 2002-11-07 | Williams Charles L. | Beverage container closure |
US7588155B2 (en) * | 2001-05-04 | 2009-09-15 | Berry Plastics Corporation | Beverage container closure |
US20060138141A1 (en) * | 2004-12-17 | 2006-06-29 | Stolzman Michael D | Reduced thickness cover |
US20100109260A1 (en) * | 2008-10-31 | 2010-05-06 | Ti Group Automotive Systems, L.L.C. | Ring seal with insert |
US8419021B2 (en) | 2008-10-31 | 2013-04-16 | Ti Group Automotive Systems, L.L.C. | Ring seal with insert |
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