Patents by Inventor David J. Lipniarski
David J. Lipniarski 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: 9016668Abstract: A barrier includes a housing having an exterior surface and an interior surface, the exterior surface having a front face and an opposing back face each extending between a top face and an opposing bottom face and also between a first side face and an opposing second side face, the interior surface bounding a chamber that is adapted to receive a ballast. An elongated first locking groove is recessed on the front face and extends between the top face and the opposing bottom face, the first locking groove including an elongated channel extending between the top face and the bottom face and a constricted mouth through which the channel can be accessed.Type: GrantFiled: July 28, 2011Date of Patent: April 28, 2015Assignee: Off the Wall Products LLCInventors: Marc E. Christensen, David J. Lipniarski, Joseph C. Mecham
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Patent number: 8936134Abstract: A three-step pool ladder having the capability to have a fourth step and/or a curve-about ladder apparatus.Type: GrantFiled: August 19, 2013Date of Patent: January 20, 2015Assignee: Confer Plastics, Inc.Inventor: David J. Lipniarski
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Publication number: 20140069742Abstract: A three-step pool ladder having the capability to have a fourth step and/or a curve-about ladder apparatus.Type: ApplicationFiled: August 19, 2013Publication date: March 13, 2014Inventor: David J. Lipniarski
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Patent number: 8453995Abstract: A barrier includes a housing having an interior surface and an opposing exterior surface extending between a first end and an opposing second end, the interior surface bounding a chamber that is adapted to receive a ballast. A coupler is rigidly connected to the first end of the housing, the housing and the coupler being separate discrete members that are connected together after formation. A structure, such as an opening or a post, is formed on the coupler for removably connecting a separate barrier to the coupler.Type: GrantFiled: June 4, 2008Date of Patent: June 4, 2013Assignee: Off the Wall Products, LLCInventors: Marc E. Christensen, David J. Lipniarski
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Patent number: 7789585Abstract: A control barrier includes a barrier wall having a front face and an opposing back face each extending between a top end and an opposing bottom end, a first recess being formed on the front face at the bottom end of the barrier wall. A first slot extends through the barrier wall from the first recess to the back face. A first foot coupled with the barrier wall and being movable between a first position wherein the first foot is at least partially disposed within the recess of the barrier wall and a second position wherein the first foot is rotated a least 45° relative to the first position and is removably positioned within the slot extending through the barrier wall.Type: GrantFiled: June 1, 2009Date of Patent: September 7, 2010Assignee: Off the Wall Products, LLCInventors: Marc E. Christensen, David J. Lipniarski
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Publication number: 20090278103Abstract: A control barrier includes a barrier wall having a front face and an opposing back face each extending between a top end and an opposing bottom end, a first recess being formed on the front face at the bottom end of the barrier wall. A first slot extends through the barrier wall from the first recess to the back face. A first foot coupled with the barrier wall and being movable between a first position wherein the first foot is at least partially disposed within the recess of the barrier wall and a second position wherein the first foot is rotated a least 45° relative to the first position and is removably positioned within the slot extending through the barrier wall.Type: ApplicationFiled: June 1, 2009Publication date: November 12, 2009Applicant: OFF THE WALL PRODUCTS, LLCInventors: Marc E. Christensen, David J. Lipniarski
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Patent number: 7578632Abstract: A first plastic component and a second plastic component are joined together by an expansive joint system on the first plastic component and a driving joint system on the second plastic component. The expansive joint system has two expansive units while the driving joint system has corresponding driving units. When the driving units simultaneously expand the respective expansive units to a predetermined point, the expansive units contract to their original position and securely lock onto portions of the second plastic component.Type: GrantFiled: May 8, 2007Date of Patent: August 25, 2009Assignee: Confer Plastics, Inc.Inventor: David J. Lipniarski
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Patent number: 7540682Abstract: A control barrier includes a barrier wall having a front face and an opposing back face each extending between a top end and an opposing bottom end, a first recess being formed on the front face at the bottom end of the barrier wall. A first slot extends through the barrier wall from the first recess to the back face. An elongated first leg is coupled with the barrier wall so that the first leg can selectively rotate and can selectively slide. A first foot is mounted on the elongated first leg, the first foot being selectively movable between a first position wherein the first foot is at least partially disposed within the recess of the barrier wall and a second position wherein the first foot is rotated a least 45° relative to the first position and is removably positioned within the slot extending through the barrier wall.Type: GrantFiled: May 8, 2008Date of Patent: June 2, 2009Assignee: Off the Wall Products LLCInventors: Marc E. Christensen, David J. Lipniarski
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Patent number: 7526841Abstract: A device and method for forming an indented female connector where the dimension of the indented female connector provides for removing a male molding component without damaging a set of internal ribs formed inside the female connector. A structure comprising an indented female blow-molded connector having a first wall having a top surface and a thickness, with the first wall surrounding an opening. At least one inner wall extends substantially perpendicular to the first wall and borders the opening. At least one rib is formed in the inner wall. A bottom wall is joined to the inner wall and the distance from the rib to the top surface is greater than the thickness of the first wall. The structure further comprising a male connector having a contact edge that, when positioned inside the indented female blow-molded connector, engage the at least one rib, such that the male connector and indented female blow-molded connector are releaseably joinable with one another.Type: GrantFiled: August 15, 2007Date of Patent: May 5, 2009Assignee: Confer Plastics, Inc.Inventor: David J. Lipniarski
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Publication number: 20090001334Abstract: A barrier includes a housing having an interior surface and an opposing exterior surface extending between a first end and an opposing second end, the interior surface bounding a chamber that is adapted to receive a ballast. A coupler is rigidly connected to the first end of the housing, the housing and the coupler being separate discrete members that are connected together after formation. A structure, such as an opening or a post, is formed on the coupler for removably connecting a separate barrier to the coupler.Type: ApplicationFiled: June 4, 2008Publication date: January 1, 2009Applicant: Off the Wall Products LLCInventors: Marc E. Christensen, David J. Lipniarski
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Publication number: 20080279624Abstract: A first plastic component and a second plastic component are joined together by an expansive joint system on the first plastic component and a driving joint system on the second plastic component. The expansive joint system has two expansive units while the driving joint system has corresponding driving units. When the driving units simultaneously expand the respective expansive units to a predetermined point, the expansive units contract to their original position and securely lock onto portions of the second plastic component.Type: ApplicationFiled: May 8, 2007Publication date: November 13, 2008Inventor: David J. Lipniarski
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Patent number: 7448824Abstract: The present invention is directed to traffic barricade having interchangeable base members and upright members that interconnect to each other. The base member and upright member are identical which allows the base member and the upright member to be interchanged together.Type: GrantFiled: February 29, 2008Date of Patent: November 11, 2008Assignee: Confer Plastics, Inc.Inventor: David J. Lipniarski
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Publication number: 20080213041Abstract: The present invention is directed to traffic barricade having interchangeable base members and upright members that interconnect to each other. The base member and upright member are identical which allows the base member and the upright member to be interchanged together.Type: ApplicationFiled: February 29, 2008Publication date: September 4, 2008Applicant: CONFER PLASTICS, INC.Inventor: David J. Lipniarski
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Patent number: 7275289Abstract: A device and method for forming an indented female connector where the dimension of the indented female connector provides for removing a male molding component without damaging a set of internal ribs formed inside the female connector. A structure comprising an indented female blow-molded connector having a first wall having a top surface and a thickness, with the first wall surrounding an opening. At least one inner wall extends substantially perpendicular to the first wall and borders the opening. At least one rib is formed in the inner wall. A bottom wall is joined to the inner wall and the distance from the rib to the top surface is greater than the thickness of the first wall. The structure further comprising a male connector having a contact edge, such that when positioned inside the indented female blow-molded connector, the contact edge releasably engages the at least one rib.Type: GrantFiled: November 24, 2004Date of Patent: October 2, 2007Assignee: Confer Plastics Inc.Inventor: David J. Lipniarski
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Patent number: 7234780Abstract: A device and method for forming an indented female connector where the dimension of the indented female connector provides for removing a male molding component without damaging a set of internal ribs formed inside the female connector. A structure comprising an indented female blow-molded connector having a first wall having a top surface and a thickness, with the first wall surrounding an opening. At least one inner wall extends substantially perpendicular to the first wall and borders the opening. At least one rib is formed in the inner wall. A bottom wall is joined to the inner wall and the distance from the rib to the top surface is greater than the thickness of the first wall. The structure further comprising a male connector having a contact edge that, when positioned inside the indented female blow-molded connector, engage the at least one rib, such that the male connector and indented female blow-molded connector are releaseably joinable with one another.Type: GrantFiled: January 7, 2005Date of Patent: June 26, 2007Assignee: Confer Plastics, Inc.Inventor: David J. Lipniarski
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Publication number: 20040107551Abstract: A device and method for forming an indented female connector where the dimension of the indented female connector provides for removing a male molding component without damaging a set of internal ribs formed inside the female connector.Type: ApplicationFiled: December 9, 2002Publication date: June 10, 2004Inventor: David J. Lipniarski
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Patent number: 6190600Abstract: The present invention relates to an apparatus that forms a polymeric structure. The apparatus has a mold plate, a circular trench, a male and female interconnect, a vertical gap filler, and a cylinder. The mold plate has a predetermined geometric design. The circular trench is in the mold plate and the difference between the outer diameter and the inner diameter of the circular trench is a distance D. The male interconnect and the female interconnect are interspaced between each other. Each interconnect rotates within the circular trench and has a base and an interconnection portion. Each base has a width D and slidably mates to the mold plate. Each interconnect portion has a minimum width W which is less than D. The male interconnect portion protrudes downwards relatively from its base to a distance P, likewise the female interconnect portion protrudes upwards relatively from its base to a distance P. The vertical gap filler aligns with the circular trench and has a foundation and an extension.Type: GrantFiled: March 12, 1999Date of Patent: February 20, 2001Assignee: Confer Plastics, Inc.Inventor: David J. Lipniarski
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Patent number: 6102156Abstract: A gate hingedly connected to a staircase. The gate hinge is blow-molded integrally with the gate body. A mounting post has on one portion a hinge pin for receiving the gate hinge, and the other portion has a pair of parallel resilient sheets for receiving an edge portion of the staircase. Two staircases are attached back-to-back by vertical flanges each of which is offset from a vertical center plane of the respective back wall portion and has a vertical surface which is co-planar with the vertical center plane. The corners of the staircase are individually height adjustable by internally threaded portions which receive threaded rods. The internal threads are formed as part of the blow-molding process. A hole to the interior of the staircase or other article is formed as part of the blow-molding process.Type: GrantFiled: July 14, 1998Date of Patent: August 15, 2000Assignee: Confer Plastics, Inc.Inventor: David J. Lipniarski
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Patent number: D569992Type: GrantFiled: January 5, 2007Date of Patent: May 27, 2008Assignee: Off the Wall Products, LLCInventors: Marc E. Christensen, David J. Lipniarski
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Patent number: D599488Type: GrantFiled: May 8, 2008Date of Patent: September 1, 2009Assignee: Off the Wall Products, LLCInventors: Marc E. Christensen, David J. Lipniarski