Patents Represented by Attorney George P. Ziehmer
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Patent number: 4091194Abstract: Copolymers of glycidyl acrylate and allyl glycidyl ether and terpolymers derived from addition of glycidyl methacrylate to the polymerizable mixture, having an inherent viscosity within the range of about 0.09 to 0.28 and an epoxy equivalent of at least about 0.64 per 100 g. of polymer are provided which upon admixture with a catalyst which is a radiation-sensitive aryldiazonium salt of a complex halogenide, provides compositions suitable for use in a dry photopolymer positive imaging process. In the process, the polymer which is non-tacky at room temperature, together with the catalyst is applied to a substrate and exposed to an energy source for example, electromagnetic radiation through a transparency or mask. Following exposure, the coating is heated to the softening point of the unexposed portion of the coating and a powder or toner is applied thereto, the toner being adhered to only the tacky, non-exposed area of the coating, resulting in a pigmented image.Type: GrantFiled: May 26, 1976Date of Patent: May 23, 1978Assignee: American Can CompanyInventors: Sheldon Irwin Schlesinger, Ronald J. Boszak
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Patent number: 4089458Abstract: A unitary paperboard blank for forming a tray with point-of-use flip-up partitions. The blank has an extension flap attached to the top edge of one of the side walls along a breakaway line of weakness. The extension flap has one or more divider panels formed therein depending upon the number of compartments desired in the tray. The side wall with its attached extension flap is folded over the bottom panel and the extension flap is glued to the inside surface of the bottom panel. The side wall is then broken away from the extension flap and the tray then formed on conventional tray forming equipment.Type: GrantFiled: May 12, 1977Date of Patent: May 16, 1978Assignee: American Can CompanyInventors: George Leroy Meyers, Donald Roy Kuehl
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Patent number: 4088640Abstract: Valuable new and widely useful compositions of matter are comprised of products having enhanced solubility and increased dispersant and the like surfactant activity which products are ozonated (so as to be oxidized) lignosulfonate derivatives beneficially including ozonated units of alkaline oxidized, hydrolyzed, partially desulfonated lignosulfonates.Type: GrantFiled: June 18, 1976Date of Patent: May 9, 1978Assignee: American Can CompanyInventor: William J. Detroit
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Patent number: 4076536Abstract: Copolymers of glycidyl acrylate and allyl glycidyl ether and terpolymers derived from addition of glycidyl methacrylate to the polymerizable mixture, having an inherent viscosity within the range of about 0.09 to 0.28 and an epoxy equivalent of at least about 0.64 per 100 g. of polymer are provided which upon admixture with a catalyst which is a radiation-sensitive aryldiazonium salt of a complex halogenide, provides compositions suitable for use in a dry photopolymer positive imaging process. In the process, the polymer which is non-tacky at room temperature, together with the catalyst is applied to a substrate and exposed to an energy source for example, electromagnetic radiation through a transparency or mask. Following exposure, the coating is heated to the softening point of the unexposed portion of the coating and a powder or toner is applied thereto, the toner being adhered to only the tacky, nonexposed area of the coating, resulting in a pigmented image.Type: GrantFiled: May 26, 1976Date of Patent: February 28, 1978Assignee: American Can CompanyInventors: Sheldon Irwin Schlesinger, Ronald J. Boszak
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Patent number: 4070852Abstract: A method and apparatus for cold lidding open-top containers with roll-stock elastomeric film by holding a web of the film in air-tight relation across the bottom of a lidding chamber and about its periphery, evacuating the lidding chamber to stretch the web thereinto, inserting the top of the container into the lidding chamber, and releasing the stretched web over the top of the container whereby the inherent restorative characteristic of the web causes it to quickly contract, i.e. "snap" onto the periphery of the container to form a dynamic seal. The removal of the lidded container from the apparatus causes the container to be moved against a tripper plate to ready the apparatus for lidding the next container. The minimum recovery factor of the stretched film web should be about 85% of its original size.Type: GrantFiled: December 13, 1976Date of Patent: January 31, 1978Assignee: American Can CompanyInventors: Richard Patrick Mitchell, Thomas Mathew Gorshe
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Patent number: 4071491Abstract: An adhesive formulation has a desirable balance of high initial tack, good dry strength, good release, and low tack upon ultimate exposure. It is particularly well suited for securing coupons to carton blanks. The formulation is butyl latex-based and includes a paraffin wax and a lower polyolefin.Type: GrantFiled: April 29, 1977Date of Patent: January 31, 1978Assignee: American Can CompanyInventor: Dale C. Wiesman
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Patent number: 4069217Abstract: Valuable new and widely used compositions of matter are comprised of products having enhanced solubility and increased dispersant and the like surfactant activity which products are resulfonated units of alkaline oxidized, hydrolyzed, partially desulfonated lignosulfonates.Type: GrantFiled: March 29, 1976Date of Patent: January 17, 1978Assignee: American Can CompanyInventors: William John Detroit, Michael Elliot Sanford
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Patent number: 4064737Abstract: A laboratory stand assembly includes a stand having a post, a sample holder bracket mounted on the post, a sample holder disengageably supported on the holder bracket, a probe mounting member adapted to support a probe, and a probe bracket mounted on the post which supports the probe member in both of two alternate positions. The stand assembly is especially suited for use in connection with the analysis of solder compositions, wherein a probe is inserted into a heated solder sample to monitor its cooling characteristics.Type: GrantFiled: October 21, 1976Date of Patent: December 27, 1977Assignee: American Can CompanyInventor: Walter Joseph Sieverin
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Patent number: 4062311Abstract: The instant invention relates to a system for the forming and trimming of tubular articles, such as aluminum and steel cans. The irregular edge at the open end of the can is trimmed by internally and externally positioned knives with respect to the can, with the internally positioned knife having a diameter less than 0.0015 inch shorter than the inside diameter of the can.Type: GrantFiled: June 24, 1976Date of Patent: December 13, 1977Assignee: American Can CompanyInventors: Joseph P. Zugcic, Kevin Whiting
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Patent number: 4057667Abstract: An oriented two-layered laminate of vinylidene chloride-vinyl chloride copolymer as one layer and an ethylene-unsaturated ester type copolymer as the other layer. To this laminate may be adhered another polymer, also capable of being oriented, plastic sheet, paper sheet or board, metal or metal foil. Products such as pouches, chubs, formed troughs and the like can be made therefrom because the vinylidene chloride-vinyl chloride copolymer retains its orientation.Type: GrantFiled: August 6, 1975Date of Patent: November 8, 1977Assignee: American Can CompanyInventors: Glenn C. Wiggins, Marvin J. Kreh, Robert S. Davis
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Patent number: 4054228Abstract: The instant invention relates to an end closure or cover for a metal container comprising a substantially flat sheet metal lid seamed about its extremity to the container body closing the end thereof. The lid has a pour opening having a closure hingedly connected to the lid and closing the pour opening, and wherein first and second sealing means are provided to seal the closure and to provide resistance of the closure to atmospheric pressure and premature opening of the container.Type: GrantFiled: April 1, 1977Date of Patent: October 18, 1977Assignee: American Can CompanyInventors: Alfred E. Balocca, Paul W. Hardy
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Patent number: 4054732Abstract: Copolymers of glycidyl acrylate and allyl glycidyl ether and terpolymers derived from addition of glycidyl methacrylate to the polymerizable mixture, having an inherent viscosity within the range of about 0.09 to 0.28 and an epoxy equivalent of at least about 0.64 per 100 g. of polymer are provided which upon admixture with a catalyst which is a radiation-sensitive aryldiazonium salt of a complex halogenide, provides compositions suitable for use in a dry photopolymer positive imaging process. In the process, the polymer which is non-tacky at room temperature, together with the catalyst is applied to a substrate and exposed to an energy source for example, electromagnetic radiation through a transparency or mask. Following exposure, the coating is heated to the softening point of the unexposed portion of the coating and a powder or toner is applied thereto, the toner being adhered to only the tacky, non-exposed area of the coating, resulting in a pigmented image.Type: GrantFiled: May 26, 1976Date of Patent: October 18, 1977Assignee: American Can CompanyInventors: Sheldon Irwin Schlesinger, Ronald J. Boszak
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Patent number: 4044086Abstract: A molecularly oriented article having a tubular sidewall is blow-molded from a thermoplastic parison which is heat-treated prior to blowing to provide the parison sidewall with a temperature gradient wherein the temperature of the inside of the sidewall is greater than that of the outside, both of said temperatures being within the orientation temperature range of the thermoplastic. The temperature gradient results in the sidewall of the article having a different and more uniform circumferential orientation release stress distribution radially across the sidewall than would be obtained if the parison were blown isothermally.Type: GrantFiled: July 21, 1975Date of Patent: August 23, 1977Assignee: American Can CompanyInventors: Charles Edmund McChesney, Robert J. McHenry, James Alan Wachtel
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Patent number: 4042877Abstract: An inspection apparatus for inspecting and detecting flaws in serially fed substantially cylindrical objects. The inspection apparatus includes a notch-shaped inspection station formed by a pair of drive wheels mounted on a first shaft and a pair of discharge wheels fixedly mounted on a second shaft, parallel to the first shaft. A hook having a convex back surface is connected to and protrudes beyond the circumference of each discharge wheel. An L-shaped bracket whose body includes a sending surface and whose leg includes an infeed cradle, is mounted above the drive wheels and pivots in synchronism with the rotation of the discharge wheels. A first object in the infeed cradle is positively sent by the bracket sending surface toward the inspection station as the hook convex back surfaces are rotating up through the inspection station.Type: GrantFiled: October 1, 1975Date of Patent: August 16, 1977Assignee: American Can CompanyInventor: Walter J. Sieverin
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Patent number: 4038859Abstract: A metal forming die having a unique profile is provided for use in producing cylindrical articles of elongated sidewall configuration. Most notably, the die is applicable to the production of drawn and ironed can shells.Type: GrantFiled: July 14, 1976Date of Patent: August 2, 1977Assignee: American Can CompanyInventor: John Pavleszek
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Patent number: 4037329Abstract: A shutter, adapted for use in a system for the radiation curing of a line of articles, includes a number of adjacent baffle units, the blades of which are configured and spaced to substantially prevent the passage of radiation, while permitting the flow of air through the shutter. To minimize the tendency of thermal expansion to distort the shutter, the units are expandably mounted along the length of the supporting frame, and the blades extend transversely thereof.Type: GrantFiled: February 13, 1976Date of Patent: July 26, 1977Assignee: American Can CompanyInventor: Sydney Johnstone Wallace
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Patent number: 4037776Abstract: A circular lid is produced from a blank, which consists of a main circular portion from which projects at least one detachable tab. The tab provides a rectilinear trailing edge on the blank, which is adapted for contact by spaced lugs of a conveyor, so that when the blank is pushed through an associated machine by the lugs bearing thereupon, its rotational orientation is maintained. This ensures that registered, sequential operations can be performed on the blank, such as gluing, window film application, printing, and the like.Type: GrantFiled: April 26, 1976Date of Patent: July 26, 1977Assignee: American Can CompanyInventors: George Leroy Meyers, Thomas Dominic Pawlowski
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Patent number: 4037550Abstract: A method of hermetically pressure-resistantly double seaming a metal end closure to a metallic container body whose wall is highly-worked, has a substantially axial grain direction and is less than about 0.057 inch thick at its marginal end portion, which includes forming a body curl of the marginal end portion and double seaming the end closure thereto, and, the resulting double seamed metallic container whose double seam includes six substantially axial metallic layers, two of which are a radially compressed body curl.Type: GrantFiled: May 18, 1976Date of Patent: July 26, 1977Assignee: American Can CompanyInventor: David Edward Zofko
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Patent number: 4035307Abstract: A solid fabric conditioner composition comprising a mixture of a conditioning agent and diatomaceous earth in compressed form is employed to condition fabrics in an automatic clothes dryer. Methods for utilizing such products wherein the rate of release of conditioner to fabrics being treated is predetermined and controlled are also provided.Type: GrantFiled: April 1, 1976Date of Patent: July 12, 1977Assignee: American Can CompanyInventors: Franklin Hornor Fry, Orville Reinke, Wayne A. Marthaler, Richard K. Wylie, Frederick C. Boye
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Patent number: 4033474Abstract: The raw metal edge on the inside lap in an adhesively-bonded lap side seam of a tubular body is protected from chemical attack by a corrosive substance from within the tubular body by applying a side seam adhesive along one marginal edge portion of the body blank, bending the other parallel marginal edge portion of the blank to form a crease thereon, rolling the blank into tubular form to place the adhesively-coated marginal edge portion and the creased marginal edge portion in an overlapping, facing position, and imbedding the creased marginal edge portion into a portion of the adhesive on the one marginal edge portion to bury the raw metal edge, the imbedding being achieved by compressing the overlapped marginal edge portions together to assemble the lap side seam of the tubular body.Type: GrantFiled: March 28, 1973Date of Patent: July 5, 1977Assignee: American Can CompanyInventor: Kenneth Richard Rentmeester