Patents by Inventor Robert L. McMahan
Robert L. McMahan 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: 10849450Abstract: An anti-fatigue mat is disclosed including a foam member and a gel member that each exhibit a different durometer. The foam member includes a support surface that supports the gel member atop the foam member. The foam member includes a foam ramp that extends outwardly downward from the gel member to a bottom surface of the foam member. A flexible cover layer is situated above the gel member and extends over the foam ramp so that the foam member and the flexible cover layer together encapsulatively seal the gel member therein. The flexible cover layer includes an indentation region situated substantially adjacent a gel/foam interface between the gel member and the foam member and further situated a predetermined distance from the peripheral edge of the mat in one embodiment. The bottom surface of the mat may include a non-slip surface to stabilize the mat on the particular surface that the mat covers.Type: GrantFiled: March 9, 2020Date of Patent: December 1, 2020Assignee: Let's Gel IncorporatedInventors: Robert L McMahan, John P Busch, Ira L Rush, Derric C Hobbs
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Patent number: 10582793Abstract: Method and apparatus for fabricating an anti-fatigue mat are disclosed. In one embodiment an anti-fatigue mat includes a foam member and a gel member, wherein each member exhibits a different durometer. The foam member includes a gel receiver that is configured with a geometry shaped to receive the gel member. A top fabric is situated on the top of the mat above the gel member and the foam member. A non-slip surface is provided on the bottom of the anti-fatigue mat. The gel member may be sealed within the mat by the foam member and the top fabric.Type: GrantFiled: May 6, 2015Date of Patent: March 10, 2020Assignee: Let's Gel IncorporatedInventors: Robert L McMahan, John P Busch, Ira L Rush, Derric C Hobbs
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Patent number: 10070747Abstract: Examples of the present disclosure are related systems and methods for lead-ins for anti-fatigue floor mats. More particularly, embodiments disclose lead-ins with tapered ends with variable heights that transition from a floor level to a mat surface level to enable drop stitch-mats to be used in residential and commercial areas.Type: GrantFiled: March 24, 2016Date of Patent: September 11, 2018Assignee: Let's Gel Inc.Inventor: Robert L. McMahan
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Publication number: 20170273490Abstract: Examples of the present disclosure are related systems and methods for lead-ins for anti-fatigue floor mats. More particularly, embodiments disclose lead-ins with tapered ends with variable heights that transition from a floor level to a mat surface level to enable drop stitch-mats to be used in residential and commercial areas.Type: ApplicationFiled: March 24, 2016Publication date: September 28, 2017Inventor: Robert L. McMahan
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Patent number: 9687100Abstract: Embodiments disclosed herein describe anti-fatigue mat systems and methods configured to provide a seamless transition between a first position allowing a user to sit on a chair positioned in front of a workstation and a second position allowing the user to stand on an upper mat positioned in front of the work station.Type: GrantFiled: June 4, 2014Date of Patent: June 27, 2017Assignee: LET'S GEL INC.Inventor: Robert L McMahan
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Patent number: 9452597Abstract: A method of fabricating an anti-fatigue mat employs a pre-formed gel cushioning member that includes opposed major surfaces. One of the opposed major surfaces of the gel cushioning member is heated and liquefied. A flexible support sheet is applied and bonded to the liquefied surface of the gel cushioning member. The remaining opposed surface of the gel cushioning member is then heated and liquefied. A flexible base sheet is applied and bonded to this liquefied surface of the gel cushioning member. The method may move one of the opposed surfaces of the gel cushioning member adjacent a heat source to liquefy a portion of the gel cushioning member passing by the heat source. A flexible sheet is dispensed or applied to the liquefied portion of the gel cushioning member as the liquefied portion passes by a flexible sheet dispenser.Type: GrantFiled: April 5, 2010Date of Patent: September 27, 2016Assignee: LET'S GEL, INC.Inventor: Robert L. McMahan
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Publication number: 20160073724Abstract: A shoe cover system includes a flexible shoe cover that is configured to substantially surround a shoe of a user of the shoe cover system. A resilient cushioning member inside the shoe cover is non-removably attached to the interior bottom of the shoe cover to receive and support the bottom of the user's shoe. Over-molding the resilient cushioning member to the interior bottom of the shoe cover may provide a permanent and direct attachment of the resilient cushioning member to the shoe cover. An adhesive layer between the resilient cushioning member and the interior bottom of the shoe cover may provide a permanent and indirect attachment of the resilient cushioning member to the shoe cover.Type: ApplicationFiled: September 16, 2014Publication date: March 17, 2016Inventor: Robert L. McMahan
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Publication number: 20150320247Abstract: Embodiments disclosed herein describe anti-fatigue mat systems and methods configured to provide a seamless transition between a first position allowing a user to sit on a chair positioned in front of a workstation and a second position allowing the user to stand on an upper mat positioned in front of the work stationType: ApplicationFiled: June 4, 2014Publication date: November 12, 2015Applicant: LET'S GEL INC.Inventor: Robert L. McMahan
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Patent number: 8723086Abstract: A heating device of a portable nature is disclosed. The heating device of a portable nature includes a heating element, a hinged coupled to the heating element, and an arm coupled to the hinge.Type: GrantFiled: March 4, 2011Date of Patent: May 13, 2014Assignee: Let's Gel, Inc.Inventor: Robert L. McMahan
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Publication number: 20120145699Abstract: A heating device of a portable nature is disclosed. The heating device of a portable nature includes a heating element, a hinged coupled to the heating element, and an arm coupled to the hinge.Type: ApplicationFiled: March 4, 2011Publication date: June 14, 2012Inventor: Robert L. McMahan
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Publication number: 20120024454Abstract: A method is disclosed for fabricating an anti-fatigue mat that employs a layer of resilient gel material that exhibits a first durometer. The method employs a frame assembly that receives a flexible support sheet. The frame assembly includes an aperture that receives a layer of heated liquid gel which cools to form the layer of resilient gel material exhibiting the first durometer. In one embodiment, a barrier layer exhibiting a second durometer is situated on the gel layer that exhibits the first durometer. In one embodiment, the barrier layer prevents the flow of oils from the gel layer to a flexible base sheet disposed on the barrier layer. In another embodiment, the flexible base sheet may exhibit a second durometer. In either embodiment, the layers exhibiting the first and second durometer cooperate to influence the feel of the mat to the user.Type: ApplicationFiled: October 10, 2011Publication date: February 2, 2012Applicant: LET'S GEL INCORPORATEDInventor: Robert L. McMahan
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Patent number: 8034274Abstract: A method is disclosed for fabricating an anti-fatigue mat that employs a layer of resilient gel material that exhibits a first durometer. The method employs a frame assembly that receives a flexible support sheet. The frame assembly includes an aperture that receives a layer of heated liquid gel which cools to form the layer of resilient gel material exhibiting the first durometer. In one embodiment, a barrier layer exhibiting a second durometer is situated on the gel layer that exhibits the first durometer. In one embodiment, the barrier layer prevents the flow of oils from the gel layer to a flexible base sheet disposed on the barrier layer. In another embodiment, the flexible base sheet may exhibit a second durometer. In either embodiment, the layers exhibiting the first and second durometer cooperate to influence the feel of the mat to the user.Type: GrantFiled: February 4, 2010Date of Patent: October 11, 2011Assignee: Let's Gel IncorporatedInventor: Robert L McMahan
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Publication number: 20110240212Abstract: A method of fabricating an anti-fatigue mat employs a pre-formed gel cushioning member that includes opposed major surfaces. One of the opposed major surfaces of the gel cushioning member is heated and liquefied. A flexible support sheet is applied and bonded to the liquefied surface of the gel cushioning member. The remaining opposed surface of the gel cushioning member is then heated and liquefied. A flexible base sheet is applied and bonded to this liquefied surface of the gel cushioning member. The method may move one of the opposed surfaces of the gel cushioning member adjacent a heat source to liquefy a portion of the gel cushioning member passing by the heat source. A flexible sheet is dispensed or applied to the liquefied portion of the gel cushioning member as the liquefied portion passes by a flexible sheet dispenser.Type: ApplicationFiled: April 5, 2010Publication date: October 6, 2011Applicant: LET'S GEL INCORPORATEDInventor: Robert L. McMahan
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Patent number: 7754127Abstract: A method and apparatus are disclosed for fabricating an anti-fatigue mat that employs a layer of resilient gel material. The method employs a frame assembly that receives a flexible sheet to form the base sheet of the mat. In one embodiment, the frame assembly includes a movable frame member having an angled aperture for controlling the geometry of the gel layer when heated gel is dispensed into the aperture. In one embodiment, the frame assembly receives another flexible sheet disposed on the gel layer to form the support sheet of the mat. In one embodiment, the frame assembly may further include a cooling channel for convective or liquid cooling of liquid gel dispensed into a gel receiving cavity formed by the aperture.Type: GrantFiled: September 30, 2006Date of Patent: July 13, 2010Assignee: Let's Gel, Inc.Inventor: Robert L. McMahan
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Patent number: 7682680Abstract: A method and apparatus are disclosed for fabricating an anti-fatigue mat that employs a layer of resilient gel material that exhibits a first durometer. The method employs a frame assembly that receives a flexible support sheet. The frame assembly includes an aperture that receives a layer of heated liquid gel which cools to form the layer of resilient gel material exhibiting the first durometer. In one embodiment, a barrier layer exhibiting a second durometer is situated on the gel layer that exhibits the first durometer. In one embodiment, the barrier layer prevents the flow of oils from the gel layer to a flexible base sheet disposed on the barrier layer. In another embodiment, the flexible base sheet may exhibit a second durometer. In either embodiment, the layers exhibiting the first and second durometer cooperate to influence the feel of the mat to the user.Type: GrantFiled: January 17, 2008Date of Patent: March 23, 2010Assignee: Let's Gel, Inc.Inventor: Robert L. McMahan
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Publication number: 20080078028Abstract: A method and apparatus are disclosed for fabricating an anti-fatigue mat that employs a layer of resilient gel material. The method employs a frame assembly that receives a flexible sheet to form the base sheet of the mat. In one embodiment, the frame assembly includes a movable frame member having an angled aperture for controlling the geometry of the gel layer when heated gel is dispensed into the aperture. In one embodiment, the frame assembly receives another flexible sheet disposed on the gel layer to form the support sheet of the mat. In one embodiment, the frame assembly may further include a cooling channel for convective or liquid cooling of liquid gel dispensed into a gel receiving cavity formed by the aperture.Type: ApplicationFiled: September 30, 2006Publication date: April 3, 2008Applicant: LET'S GELInventor: Robert L. McMahan
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Patent number: 7219377Abstract: Disclosed is a method for using a bedstead board attached to a bed to support a roller of a patient transport system. A recess extends into the bedstead board and is spaced a distance from the side of the board. The recess retains a roller sufficiently to withstand forces acting upon the roller.Type: GrantFiled: June 15, 2006Date of Patent: May 22, 2007Assignee: Barton Medical CorporationInventor: Robert L. McMahan
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Patent number: 7076270Abstract: A docking station for a wireless communications device includes a support structure that includes a cradle for the wireless telephone. The docking station includes a switch, sensor or other detection mechanism that detects when the wireless communication device is docked. When the wireless communication device is docked, the detection mechanism sends a signal to the wireless communication device. A set of instructions stored in the processor determines which display and which input to use, depending on whether or not the signal is received from the detection mechanism. Embodiments include a display, USB hub, and modem in the docking station. Another embodiment includes a USB connector in the wireless communication device. Finally, an embodiment includes a docking station with equivalent features for a cellular telephone or Personal Digital Assistant (PDA).Type: GrantFiled: February 28, 2001Date of Patent: July 11, 2006Assignee: Dell Products L.P.Inventors: Christopher M. Jaggers, Robert L. McMahan
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Patent number: 7062803Abstract: Disclosed is a bedstead board having at least one recess near a first or a second side. The at least one recess is configured to removably receive a roller of a patient transport system. In use, two bedstead boards are connected to a bed frame. Each of the two bedstead boards includes at least one recess, with the at least two recesses aligning to receive a roller of the patient transport system to be parallel to a longitudinal axis of the bed. Preferably, the at least one recess is tilted from vertical such that the roller will not tend to dislodge from the at least one recess during use.Type: GrantFiled: February 27, 2004Date of Patent: June 20, 2006Assignee: Barton Medical CorporationInventor: Robert L. McMahan
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Patent number: 7013163Abstract: A docking station for a wireless communication device, such as a cellular telephone. The docking station includes a cradle for the cellular phone and comprises an associated LCD that enhances the video display capabilities of the cellular telephone. When docked, the cellular telephone draws power from a voltage supply provided by the docking station. While the cellular telephone is docked, a charging circuit recharges the cellular telephone battery. The docking station may be disconnected from an AC outlet so that the docked cellular telephone retains both enhanced display capabilities, which prove to be highly desirable for applications such as Internet access, as well as its inherent portability. Even in the portable mode, where the docking station is disconnected from the AC outlet, the docking station recharges the cellular telephone battery.Type: GrantFiled: January 26, 2001Date of Patent: March 14, 2006Assignee: Dell Products L.P.Inventors: Christopher M. Jaggers, Robert L. McMahan