Patents Assigned to Silgan Holdings Inc.
  • Patent number: 11643254
    Abstract: What is proposed is a closure unit consisting of a glass container (50) with external, circumferentially offset threaded elements (54, 55) on a container neck (52) of the glass container, and a closure cover made of sheet metal, wherein the closure cover (1, 2) has an encircling plastics layer (30; 30h, 30v) on the inside of the cover. The closure cover is pressed onto the container neck (52) and can be opened with a rotational movement via the threaded elements (54, 55) and a vertical section (30v) of the plastics layer. The container neck (52) has a horizontal end surface (52a) on which a horizontal section (30h) of the plastics layer rests under pressure in a sealing manner. A central region (11) of the closure cover passes with an adjoining, circumferentially oriented transition zone (11a, 11b, 11c) into an axially downwardly projecting skirt section (12) which ends in a roll-up region (21a, 21; 22).
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: May 9, 2023
    Assignee: SILGAN HOLDINGS INC.
    Inventors: Robert Fink, Hans-Peter Hein, Helmut Klemm, Andreas Maniera, Ludwig Kramer
  • Publication number: 20210339919
    Abstract: The invention relates to a container closure (1, 21, 41, 61) with a sealing element (3, 23, 43, 63). The sealing element (3, 23, 43, 63) comprises a polymer composition. The polymer composition comprises a butene copolymer. The butene copolymer has a melting temperature Tm of between 30° C. and 130° C., wherein the melting temperature T. is determined by the second heating curve of a DSC measurement at a heating rate of 10° C.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 4, 2021
    Applicants: SILGAN HOLDINGS, INC., SILIGAN WHITE CAP MANUFACTURING GMBH
    Inventors: Juergen Kintscher, Andreas Maniera
  • Patent number: 10633149
    Abstract: The invention relates to a container made of glass or hard plastic having a container neck (52) with a plurality of external thread elements (53, 54, 55, 56, 57, 58), which are offset circumferentially relative to one another, as thread segments. The container can be closed by means of the thread segments by a closure cap made of metal sheet, wherein the closure cap (1, 2) has a circumferential plastic layer (30;30h,30v) on the inside of the cap and on the rim of the cap which has a sealing and retaining action. The closure cap can be pressed onto the container neck (52) and over the thread elements (53, 54, 55, . . . ) during closure and a vertical portion (30v) of the plastic layer can be opened with a rotary movement relative to the thread segments (53, 54, 55, . . . ). The container neck (52) has an upper horizontal end face (52a) as an annular surface which is adapted and suitable to be pressed into a horizontal portion (30 h) of the plastic layer (30;30h,30v) of the closure cap (1.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: April 28, 2020
    Assignee: Silgan Holdings, Inc.
    Inventors: Robert Fink, Hans-Peter Hein, Helmut Klemm, Andreas Maniera, Ludwig Kramer
  • Patent number: 10538363
    Abstract: What is proposed is a closure unit consisting of a glass container (50) with external, circumferentially offset threaded elements (54, 55) on a container neck (52) of the glass container, and a closure cover made of sheet metal, wherein the closure cover (1, 2) has an encircling plastics layer (30; 30h, 30v) on the inside of the cover. The closure cover is pressed onto the container neck (52) and can be opened with a rotational movement via the threaded elements (54, 55) and a vertical section (30v) of the plastics layer. The container neck (52) has a horizontal end surface (52a) on which a horizontal section (30h) of the plastics layer rests under pressure in a sealing manner. A central region (11) of the closure cover passes with an adjoining, circumferentially oriented transition zone (11a, 11b, 11c) into an axially downwardly projecting skirt section (12) which ends in a roll-up region (21a, 21; 22).
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: January 21, 2020
    Assignee: SILGAN HOLDINGS INC.
    Inventors: Robert Fink, Hans-Peter Hein, Helmut Klemm, Andreas Maniera, Ludwig Kramer
  • Patent number: 10400063
    Abstract: The invention concerns a novel chain-terminated polymeric composition, comprising hydroxyl-terminated polyesters and a method for preparing the composition and the use of the chain-terminated polymeric composition as a plasticizer. They play a predominant role in the field of metal vacuum closures (Twist-Off and Press-On-Twist-Off closures). Selection criteria regarding the suitability of plasticizers in food contact applications are properties such as low plasticizer volatility, low plastisol viscosity, PVC compatibility, softness and resilience of the gasket as well as non-toxicity and high plasticizer migration resistance. The invention concerns the chemical equation of FIG.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: September 3, 2019
    Assignee: Silgan Holdings Inc.
    Inventor: Juergen Kintscher
  • Publication number: 20180312628
    Abstract: The invention concerns a novel chain-terminated polymeric composition, comprising hydroxyl-terminated polyesters and a method for preparing the composition and the use of the chain-terminated polymeric composition as a plasticizer. They play a predominant role in the field of metal vacuum closures (Twist-Off and Press-On-Twist-Off closures). Selection criteria regarding the suitability of plasticizers in food contact applications are properties such as low plasticizer volatility, low plastisol viscosity, PVC compatibility, softness and resilience of the gasket as well as non-toxicity and high plasticizer migration resistance. The invention concerns the chemical equation of FIG.
    Type: Application
    Filed: July 5, 2018
    Publication date: November 1, 2018
    Applicant: SILGAN HOLDINGS INC.
    Inventor: Juergen KINTSCHER
  • Patent number: 10023688
    Abstract: The invention concerns a novel chain-terminated polymeric composition, comprising hydroxyl-terminated polyesters and a method for preparing the composition and the use of the chain-terminated polymeric composition as a plasticizer. They play a predominant role in the field of metal vacuum closures (Twist-Off and Press-On-Twist-Off closures). Selection criteria regarding the suitability of plasticizers in food contact applications are properties such as low plasticizer volatility, low plastisol viscosity, PVC compatibility, softness and resilience of the gasket as well as non-toxicity and high plasticizer migration resistance. The invention concerns the chemical equation of FIG. 1 for obtaining the suggested chain-terminated polymeric composition, wherein x, y, and z are the stoichiometric ratios of dibasic carboxylic acid (DCA), glycerol or polyglycerol (GPG), and monobasic carboxylic acid (MCA).
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: July 17, 2018
    Assignee: Silgan Holdings Inc.
    Inventor: Juergen Kintscher
  • Publication number: 20160185898
    Abstract: The invention concerns a novel chain-terminated polymeric composition, comprising hydroxyl-terminated polyesters and a method for preparing the composition and the use of the chain-terminated polymeric composition as a plasticizer. They play a predominant role in the field of metal vacuum closures (Twist-Off and Press-On-Twist-Off closures). Selection criteria regarding the suitability of plasticizers in food contact applications are properties such as low plasticizer volatility, low plastisol viscosity, PVC compatibility, softness and resilience of the gasket as well as non-toxicity and high plasticizer migration resistance. The invention concerns the chemical equation of FIG. 1 for obtaining the suggested chain-terminated polymeric composition, wherein x, y, and z are the stoichiometric ratios of dibasic carboxylic acid (DCA), glycerol or polyglycerol (GPG), and monobasic carboxylic acid (MCA).
    Type: Application
    Filed: February 21, 2014
    Publication date: June 30, 2016
    Applicant: SILGAN HOLDINGS INC.
    Inventor: Juergen KINTSCHER
  • Patent number: 9289955
    Abstract: The present techniques provide multi-layer plastic structures and methods for making such. The multi-layer plastic structures include an inner surface made from a polyolefin resin, and resistant to environmental stress cracking, and an outer surface that includes a styrenic copolymer. The outer surface has a kinetic coefficient of friction with itself of 0.42 and a static coefficient of friction with itself of 0.44.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: March 22, 2016
    Assignees: Chevron Phillips Chemical Company LP, Silgan Holdings, Inc.
    Inventors: Lee A. Carvell, Mark Wanderlich, Susan L. Banovic, James Jalutkewicz, Charles E. Rees, Michael A. Smith
  • Publication number: 20120311971
    Abstract: The present techniques provide multi-layer plastic structures and methods for making such. The multi-layer plastic structures include an inner surface made from a polyolefin resin, and resistant to environmental stress cracking, and an outer surface that includes a styrenic copolymer. The outer surface has a kinetic coefficient of friction with itself of 0.42 and a static coefficient of friction with itself of 0.44.
    Type: Application
    Filed: August 23, 2012
    Publication date: December 13, 2012
    Applicants: Silgan Holdings, Inc, Chevron Phillips Chemical Company LP
    Inventors: Lee A. Carvell, Mark Wanderlich, Susan L. Banovic, James Jalutkewicz, Charles E. Rees, Michael A. Smith
  • Patent number: 8263198
    Abstract: The present techniques provide multi-layer plastic structures and methods for making such. The multi-layer plastic structures include an inner surface made from a polyolefin resin, and resistant to environmental stress cracking, and an outer surface that includes a styrenic copolymer. The outer surface has a kinetic coefficient of friction with itself of 0.42 and a static coefficient of friction with itself of 0.44.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: September 11, 2012
    Assignees: Chevron Phillips Chemical Company LP, Silgan Holdings, Inc.
    Inventors: Lee A. Carvell, Mark Wanderlich, Susan L. Banovic, James Jalutkewicz, Charles E. Rees, Michael A. Smith
  • Patent number: 7946438
    Abstract: The invention is directed to a closing device for a closure lid made of sheet metal suitable for opening by twisting, as well as a support device on or for such closure lid, as well as the closure lid itself and a process of making such closure lid. The closing device includes a lid panel; a skirt portion on an edge of the lid panel; a seal extending from a circumferential section of the lid panel into the skirt portion. In addition, the closing device has a non-metallic safety ring that includes two circumferentially extending sections, configured as a safety section with a strip section, shaped to project radially inwards and axially upwards, as well as a connecting section for attaching the safety section on an axially lower end of the skirt portion. The skirt portion has a lower end rolled up from radial outside to radial inside by more than 180° to form a roll-up portion, the roll-up portion being at least partly clasped, or is claspable, by the connecting section from an inner side of the skirt portion.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: May 24, 2011
    Assignee: Silgan Holdings Inc.
    Inventors: Peter Dobbelstein, Carsten Pfromm
  • Patent number: 7837022
    Abstract: A device for conveying closures (D) made from metallic sheet in an essentially vertical direction from a collecting point (1) to a release point (6) is proposed. The closures are selected to be in correct position during conveying in order to release at the release point (6) only same-lying closures in a row of closures following one another closely. A conveyer belt (10) serves for the transport (v1, v2) of the closures. A sensor and discharge device (17, 16, 19, 18; 3) serves for detecting wrong-position closures and for lateral discharge (q1, q2) of individual wrong-position closures. In the course of the conveyer belt (10) upstream of the sensor and discharge device, a bar (15) is arranged above the conveyer belt, which terminates after the sensor and discharge device (17, 16, 19, 18; 3). More than one row (R1, R2) of closures next to one another may be supplied separately to the sensor and discharge device (17, 16, 19, 18; 3).
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: November 23, 2010
    Assignee: Silgan Holdings, Inc.
    Inventor: Hans-Juergen Schoenke
  • Publication number: 20080105641
    Abstract: The invention relates for the easy mounting a closing means on or for a closure lid made of sheet metal which is to be opened by means of twisting. It comprises a lid panel (10), a skirt portion (20) at the edge of the lid panel (10) and a sealing layer (25), which extends between a circumferential section of the lid panel and into the skirt section (25a, 25b). A safety ring (40, 30) made of non metal comprises two circumferentially extending sections. There is provided a safety section (40) with a shaped strip portion (41) that extends radially inwards and upwards and a connecting section (30) for affixing the safety section (40) to an axially lower end of the skirt portion (20). The lower end (21, 21a) of the skirt portion, which is rolled up by more than 180° is at least partly clasped (31, 32, 32a, 32b) by the connecting section (30) from an inner side of the skirt portion.
    Type: Application
    Filed: July 29, 2005
    Publication date: May 8, 2008
    Applicant: SILGAN HOLDINGS INC.
    Inventors: Peter Dobbelstein, Carsten Pfromm
  • Patent number: 7367465
    Abstract: A closure cap and method of making the same wherein an annular or ring-shaped gasket is injection molded onto the inner surface of a cap shell formed of plastic or metal. The annular or ring-shaped gasket includes radially extending tabs integrally formed therewith, one of said tabs being formed at a location wherein the plastic melt is fed to an annular gasket-forming channel in a mold core and another of said tabs being formed at the location wherein plastic melt is discharged from said channel. Preferably, said other tab includes a cold well formation which communicates with the annular gasket through a connecting portion of reduced cross-sectional area with respect to the cross-sectional areas of both the gasket and the cold well formation.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: May 6, 2008
    Assignee: Silgan Holdings Inc.
    Inventors: James Taber, Stephen B. Kras