Patents by Inventor Ewald A. Kamp
Ewald A. Kamp has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7260871Abstract: The invention generally relates to interlocking closure devices including two closure elements arranged to be interlocked over a predetermined length. The closure elements permit the venting of fluids when the closure elements are in their occluded vented position. The closure elements have an occluded closed position which creates a seal and prevents fluids from passing between the interlocking closure elements. The closure fastening device may be utilized with a flexible container and is advantageous in permitting a user to vent excess air from the interior of the flexible container prior to sealing the container.Type: GrantFiled: April 26, 2004Date of Patent: August 28, 2007Assignee: The Clorox CompanyInventors: Michael G. Borchardt, Peggy Golden, legal representative, Ewald A. Kamp, deceased
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Publication number: 20050235467Abstract: The invention generally relates to interlocking closure devices including two closure elements arranged to be interlocked over a predetermined length. The closure elements permit the venting of fluids when the closure elements are in their occluded vented position. The closure elements have an occluded closed position which creates a seal and prevents fluids from passing between the interlocking closure elements. The closure fastening device may be utilized with a flexible container and is advantageous in permitting a user to vent excess air from the interior of the flexible container prior to sealing the container.Type: ApplicationFiled: April 26, 2004Publication date: October 27, 2005Inventors: Michael Brochardt, Ewald Kamp
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Patent number: 5056933Abstract: An interlocking closure fastening device comprising a first closure element and a second closure element wherein the first closure element or the second closure element may comprise a plurality of closure element units having the same or alternately different structures. The closure fastening device is particularly adapted for multiposition occlusion of the closure elements such as in connecting various parts of plastic film to itself, different plastic films to each other, and variable-depth pouches, containers, or storage bags.Type: GrantFiled: September 22, 1989Date of Patent: October 15, 1991Assignee: First Brands CorporationInventor: Ewald A. Kamp
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Patent number: 4922588Abstract: An interlocking closure fastening device comprising an omega-shaped closure element and a co-acting clamping closure element. The co-acting clamping closure element may have a profile portion comprising two generally parallel arm portions wherein one of the arm portions terminates in an inwardly curved hook portion, and the other arm portion curves slightly inward prior to terminating in an outwardly extending clamp portion; or the profile portion may comprise two outwardly curved arm portions wherein one of the arm portions terminates in an inwardly curved hook portion, and the other arm portion curves inwardly prior to terminating in a slightly outwardly curved hook portion; or the profile portion may comprise one inwardly curved arm portion terminating in an inwardly curved hook portion, and one generally straight arm portion.Type: GrantFiled: September 11, 1985Date of Patent: May 8, 1990Assignee: First Brands CorporationInventors: Michael G. Borchardt, Robert T. Dorsey, Kevin H. Erwin, Ewald A. Kamp
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Patent number: 4854017Abstract: An interlocking closure fastening device comprising a first closure element and a second closure element wherein the first closure element or the second closure element may comprise a plurality of closure element units having the same or alternately different structures. The closure fastening device is particularly adapted for multiposition occlusion of the closure elements such as in connecting various parts of plastic film to itself, different plastic films to each other, and variable-depth pouches, containers, or storage bags.Type: GrantFiled: November 17, 1987Date of Patent: August 8, 1989Assignee: First Brands CorporationInventor: Ewald A. Kamp
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Patent number: 4844248Abstract: A gusseted dish cover formed from a flexible sheet material and an elastomeric matrerial having a constricted opening and a cross-section of a generally M-shaped gusset. A novel storage and dispensing means for such gusseted dish covers is also disclosed wherein the dish covers are placed on a center support member having the constricted opening and the elastomeric material positioned off the end of the support member.Type: GrantFiled: April 15, 1987Date of Patent: July 4, 1989Assignee: First Brands CorporationInventors: Elizabeth A. Forberg, Ewald A. Kamp, deceased
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Patent number: 4778282Abstract: An interlocking closure fastening device comprising an omega-shaped closure element and a co-acting closure element having a trident profile configuration. The co-acting closure element has a profile portion comprising three generally parallel arm portions. The first arm portion terminates in a hook portion, the second arm portion is a generally straight structure having at least one enlarged portion located anterior to its extremity, and the third arm portion terminates in a funnel portion. The closure device is adapted for use with reclosable plastic freezer storage and cooking bags to provide drip-proof and leak-proof seals.Type: GrantFiled: September 10, 1987Date of Patent: October 18, 1988Assignee: First Brands CorporationInventors: Michael G. Borchardt, Robert T. Dorsey, Ewald A. Kamp
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Patent number: 4767220Abstract: A flexible container for storing foods in a freezer and cooking foods therein. The container includes an interlocking closure fastening device comprising an omega-shaped closure element and a co-acting clamping closure element. The co-acting clamping closure element may have a profile portion comprising two generally parallel arm portions wherein one of the arm portions terminates in an inwardly curved hook portion, and the other arm portion curves slightly inward prior to terminating in an outwardly extending clamp portion; or the profile portion may comprise two outwardly curved arm portions wherein one of the arm portions terminates in an inwardly curved hook portion, and the other arm portion curves inwardly prior to terminating in a slightly outwardly curved hook portion; or the profile portion may comprise one inwardly curved arm portion terminating in an inwardly curved hook portion, and one generally straight arm portion.Type: GrantFiled: August 10, 1987Date of Patent: August 30, 1988Assignee: First Brands CorporationInventor: Ewald A. Kamp
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Patent number: 4710968Abstract: An interlocking closure fastening device comprising an omega-shaped closure element and a co-acting closure element having a trident profile configuration. The co-acting closure element has a profile portion comprising three generally parallel arm portions. The first arm portion terminates in a hook portion, the second arm portion is a generally straight structure having at least one enlarged portion located anterior to its extremity, and the third arm portion terminates in a funnel portion. The closure device is adapted for use with reclosable plastic freezer storage and cooking bags to provide drip-proof and leak-proof seals.Type: GrantFiled: September 11, 1985Date of Patent: December 1, 1987Assignee: First Brands CorporationInventors: Michael G. Borchardt, Robert T. Dorsey, Ewald A. Kamp
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Patent number: 4665557Abstract: An interlocking closure fastening device comprising a first closure element having an omega-shaped profile portion, and a second complementary closure element having a plurality of omega-shaped profile portions spaced to interdigitate with the first closure element and occlude with the first closure element. The profile portion of the first closure element is made from a stiff resin material, and is attached to a base portion made from a flexible resin material. The second closure element is made from a stiff resin material. The base portions of the second closure element are spaced from each other and interconnected by a flexible connecting portion. The closure device is adapted for use with reclosable plastic freezer storage and cooking bags.Type: GrantFiled: July 22, 1986Date of Patent: May 12, 1987Assignee: First Brands CorporationInventor: Ewald A. Kamp
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Patent number: 4581007Abstract: An adhesive closure bag with a Z-folded flap, together with a method of production thereof.Type: GrantFiled: December 7, 1984Date of Patent: April 8, 1986Assignee: Union Carbide CorporationInventor: Ewald A. Kamp
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Patent number: 4561108Abstract: A flexible container for storing foods in a freezer and cooking foods therein. The container includes an interlocking closure fastening device comprising an omega-shaped closure element and a co-acting clamping closure element. The co-acting clamping closure element may have a profile portion comprising two generally parallel arm portions wherein one of the arm portions terminates in an inwardly curved hook portion, and the other arm portion curves slightly inward prior to terminating in an outwardly extending clamp portion; or the profile portion may comprise two outwardly curved arm portions wherein one of the arm portions terminates in an inwardly curved hook portion, and the other arm portion curves inwardly prior to terminating in a slightly outwardly curved hook portion; or the profile portion may comprise one inwardly curved arm portion terminating in an inwardly curved hook portion, and one generally straight arm portion.Type: GrantFiled: December 30, 1983Date of Patent: December 24, 1985Assignee: Union Carbide CorporationInventor: Ewald A. Kamp
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Patent number: 4540537Abstract: An extrusion die apparatus for producing at least one plastic closure strip having profile and base portions, includes a die body having a die face, a profile channel defined in the die body and communicating with a profile die opening in the die face for extruding a profile portion, and a base channel defined in the die body and communicating with a base die opening in the face for extruding a base portion. The channels are adjacent to each other near the die openings and separated by a portion of the die body which terminates short of the face so that the extruded profile and base portions join together before exiting the die body.Type: GrantFiled: March 1, 1984Date of Patent: September 10, 1985Assignee: Union Carbide CorporationInventor: Ewald A. Kamp
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Patent number: 4516268Abstract: A container comprises a flexible closure device and a pouch portion, and the closure device comprises a first flexible closure strip including a pair of first hooks, and a second flexible closure strip including a pair of second hooks and a ridge positioned to facilitate and maintain the occlusion of the closure strips.Type: GrantFiled: July 29, 1983Date of Patent: May 7, 1985Assignee: Union Carbide CorporationInventor: Ewald A. Kamp
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Patent number: 4513445Abstract: An adhesive closure bag with a Z-folded flap, together with a method of production thereof.Type: GrantFiled: December 27, 1982Date of Patent: April 23, 1985Assignee: Union Carbide CorporationInventor: Ewald A. Kamp
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Patent number: 4477950Abstract: Disclosed is a closure having an aperture at one end and projections on its edges that is improved by the use of slits, either extending from the aperture or extending from the abutment edges of the projections, which provide a locking action that prevents release of the closure when under elongation load through curling and deformation of the strip.Type: GrantFiled: November 29, 1982Date of Patent: October 23, 1984Assignee: Union Carbide CorporationInventors: Kenneth E. Cisek, Ewald A. Kamp
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Patent number: 4450996Abstract: A severing blade comprising a plurality of spaced-apart extended members, each of said extended members having a blunt upper edge extremity and at least one side-extended tooth with a piercing tip disposed below the blunt upper edge extremity and in the plane of the blade so that a stretchable film transversely pulled over the severing edge will be snagged on the side-projected teeth thereby causing a segment of the film to be severed.Type: GrantFiled: March 15, 1982Date of Patent: May 29, 1984Assignee: Union Carbide CorporationInventor: Ewald A. Kamp
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Patent number: 4428788Abstract: A method and apparatus for extruding a film, a tape and a closure device simultaneously to produce integrated interlocking closure stock comprising (a) extruding a sheet of film onto a rotating casting roll at a rate to provide a high draw-down ratio; (b) extruding a tape to join the film on the casting roll at a rate to provide a medium draw-down ratio; and (c) extruding a closure device onto the tape as it approaches the casting roll at a rate to provide a small draw-down ratio.Type: GrantFiled: May 14, 1982Date of Patent: January 31, 1984Assignee: Union Carbide CorporationInventor: Ewald A. Kamp
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Patent number: 4426029Abstract: A severing blade comprising a plurality of spaced-apart sharp piercing teeth disposed below and between a plurality of spaced-apart blunt projections, the blunt projections being adapted to stretch and/or thin a segment of a sheet material, such as stretchable film, to be severed.Type: GrantFiled: December 30, 1981Date of Patent: January 17, 1984Assignee: Union Carbide CorporationInventor: Ewald A. Kamp
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Patent number: 4362198Abstract: A closure fastening device comprises a first channel element including hook portions facing away from each other and a second channel element including hook portions facing towards each other, whereby the channel elements interlock by pressing the first channel element into the second channel element so that the hook portions engage each other at predetermined contact surfaces. The closure fastening device can be connected to the opening of a container to form a container capable of being closed and opened.Type: GrantFiled: March 26, 1980Date of Patent: December 7, 1982Assignee: Union Carbide CorporationInventor: Ewald A. Kamp