Patents Assigned to D.T. Davis Enterprises, Ltd.
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Publication number: 20240082077Abstract: A transfer mattress includes a top panel; a bottom panel; an outer stringer having a superior edge coupled to the top panel and an inferior edge coupled to the bottom panel such that a portion of the outer stringer extending between the top panel and the bottom panel is at an angle other than 90 degrees with respect to the top panel and the bottom panel when the mattress body is inflated; and an inner stringer positioned between the central longitudinal axis and the outer stringer and having a superior edge coupled to the top panel and an inferior edge coupled to the bottom panel such that a portion of the inner stringer extending between the top panel and the bottom panel is at an angle other than 90 degrees with respect to the top panel and the bottom panel when the mattress body is inflated.Type: ApplicationFiled: November 22, 2023Publication date: March 14, 2024Applicant: D.T. Davis Enterprises, Ltd. (d/b/a Hovertech International)Inventor: David T. Davis
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Patent number: 11826285Abstract: A transfer mattress includes a top panel, a bottom panel, an outer stringer and an inner stringer. The top panel has a perimeter including a proximal edge and a distal edge, wherein a central longitudinal axis extends from the proximal edge to the distal edge. The bottom panel has a plurality of perforations and a perimeter including a proximal edge and a distal edge coupled to the perimeter of the top panel. The outer stringer and inner stringer each have a superior edge coupled to the top panel and an inferior edge coupled to the bottom panel and a longitudinal portion that is substantially parallel to the central longitudinal axis. The inner stringer is positioned between the central longitudinal axis and the outer stringer.Type: GrantFiled: March 3, 2022Date of Patent: November 28, 2023Assignee: D.T. Davis Enterprises, Ltd.Inventor: David T. Davis
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Patent number: 11737939Abstract: Methods and systems of patient offloading include positioning an inflatable transfer mattress in a first position with respect to a surface supporting the inflatable transfer mattress. At least one inflatable positioning wedge is positioned in a second position with respect to the surface. The inflatable transfer mattress is positioned in a third position in which a portion of the inflatable transfer mattress overlaps a portion of the at least one inflatable positioning wedge. The at least one inflatable positioning wedge is inflated to transition the portion of the inflatable transfer mattress overlapping the portion of the at least one inflatable positioning wedge to a non-zero angle with respect to the surface.Type: GrantFiled: October 22, 2020Date of Patent: August 29, 2023Assignee: D.T. DAVIS ENTERPRISES, LTD.Inventor: David T. Davis
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Publication number: 20220339045Abstract: Embodiments of an inflatable transfer device including a top panel, a bottom panel coupled to the top panel to define an inflatable chamber therebetween, and a high-friction surface coupled to the top panel are disclosed. A top edge of each of the stringers is coupled to the top panel and a bottom edge of each of the stringers is coupled to the bottom panel. The high-friction surface is configured to maintain a patient in a fixed position when the inflatable transfer device and the patient are positioned at an angle with respect to a horizontal support surface.Type: ApplicationFiled: April 22, 2022Publication date: October 27, 2022Applicant: D.T. Davis Enterprises, Ltd. (d/b/a Hovertech International)Inventors: Patrick Cook, Scott Moore, John Englebert
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Patent number: 11439551Abstract: An inflatable transfer mattress includes a top panel, a bottom panel having a perimeter sealingly coupled to a perimeter of the top panel to define an internal volume therebetween, and a rotational positioning device coupled to the top panel. The internal volume is configured to receive an air flow therein. The rotational positioning device is positioned outside of the internal volume and includes at least one inflatable bladder configured to be inflated from a deflated state to an inflated state. The bladder portion is configured to rotate a patient to a predetermined angle with respect to the top panel in the inflated state.Type: GrantFiled: January 10, 2020Date of Patent: September 13, 2022Assignee: D.T. Davis Enterprises, Ltd.Inventor: David T. Davis
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Patent number: 11439550Abstract: An inflatable transfer mattress includes a top panel, a bottom panel having a perimeter sealingly coupled to a perimeter of the top panel to define an internal volume therebetween, and a rotational positioning device coupled to the top panel. The internal volume is configured to receive an air flow therein. The rotational positioning device is positioned outside of the internal volume and includes at least one inflatable bladder configured to be inflated from a deflated state to an inflated state. The bladder portion is configured to rotate a patient to a predetermined angle with respect to the top panel in the inflated state.Type: GrantFiled: January 9, 2020Date of Patent: September 13, 2022Assignee: D.T. Davis Enterprises, Ltd.Inventor: David T. Davis
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Publication number: 20220233386Abstract: An inflatable patient support includes a top panel defining a first perimeter and a bottom panel defining a second perimeter. The second perimeter of the bottom panel is coupled to the first perimeter of the top panel. An internal wall is coupled between the top panel and the bottom panel to define a first chamber and a second chamber. The internal wall defines at least one passage therethrough that allows fluid communication between the first chamber and the second chamber. The first chamber and the second chamber are inflatable.Type: ApplicationFiled: April 11, 2022Publication date: July 28, 2022Applicant: D.T. Davis Enterprises, Ltd. (d/b/a Hovertech International)Inventors: David T. Davis, Jason K. Werkheiser, John F. Englebert, III
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Publication number: 20220218544Abstract: An inflatable transfer mattress includes a top panel, a bottom panel having a perimeter sealingly coupled to a perimeter of the top panel to define an internal volume therebetween, a first wedge pocket coupled to an outer surface of the top panel, and a first inflatable wedge. The internal volume is configured to receive an air flow therein. The first inflatable wedge is sized and configured to be inserted into the first wedge pocket and is configured to be transitioned from a deflated state to an inflated state. The first inflatable wedge is configured to rotate a patient to a predetermined angle with respect to the top panel in the inflated state.Type: ApplicationFiled: March 28, 2022Publication date: July 14, 2022Applicant: D.T. Davis Enterprises, LTD. (d/b/a Hovertech International)Inventor: David T. Davis
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Patent number: 11382806Abstract: In one aspect, an inflatable patient handling mattress includes a mattress body, a first lateral extension, a second lateral extension, and one or more lift handles. The mattress body includes a top panel, a bottom panel, and a plenum chamber between the top panel and the bottom panel and configured to be filled with air. The first lateral extension extends from a first side of the mattress body. The second lateral extension extends from a second side of the mattress body, the second side opposite the first side. Each lift handle of the one or more lift handles is attached to one of the first lateral extension and the second lateral extension. The one or more lift handles are configured to be used to lift a patient disposed on the mattress body.Type: GrantFiled: May 29, 2019Date of Patent: July 12, 2022Assignee: D.T. Davis Enterprises, Ltd.Inventor: David T. Davis
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Publication number: 20220183906Abstract: A transfer mattress includes a top panel, a bottom panel, an outer stringer and an inner stringer. The top panel has a perimeter including a proximal edge and a distal edge, wherein a central longitudinal axis extends from the proximal edge to the distal edge. The bottom panel has a plurality of perforations and a perimeter including a proximal edge and a distal edge coupled to the perimeter of the top panel. The outer stringer and inner stringer each have a superior edge coupled to the top panel and an inferior edge coupled to the bottom panel and a longitudinal portion that is substantially parallel to the central longitudinal axis. The inner stringer is positioned between the central longitudinal axis and the outer stringer.Type: ApplicationFiled: March 3, 2022Publication date: June 16, 2022Applicant: D.T. Davis Enterprises, Ltd. (d/b/a Hovertech International)Inventor: David T. Davis
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Publication number: 20220160562Abstract: A multi-cell inflatable jack includes a plurality of jack elements. Each of the plurality of jack elements includes a body having a predetermined perimeter shape and defining a perimeter chamber and a central chamber. A valve is coupled to the body and configured to provide air flow to one of the perimeter chamber or the central chamber. A plurality of flow control stringers are located between the first chamber portion and the second chamber portion and are configured to control an air flow rate into each of the perimeter chamber and the central chamber. At least one fastener is formed on the body and configured to attach the jack element to at least one additional jack element in a multi-cell stack.Type: ApplicationFiled: December 6, 2021Publication date: May 26, 2022Applicant: D.T. Davis Enterprises, Ltd. (d/b/a Hovertech International)Inventor: Jason K. WERKHEISER
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Patent number: 11298282Abstract: An inflatable patient support includes a top panel defining a first perimeter and a bottom panel defining a second perimeter. The second perimeter of the bottom panel is coupled to the first perimeter of the top panel. An internal wall is coupled between the top panel and the bottom panel to define a first chamber and a second chamber. The internal wall defines at least one passage therethrough that allows fluid communication between the first chamber and the second chamber. The first chamber and the second chamber are inflatable.Type: GrantFiled: January 30, 2017Date of Patent: April 12, 2022Assignee: D.T. Davis Enterprises, Ltd.Inventors: David T. Davis, Jason K. Werkheiser, John F. Englebert, III
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Patent number: 11285063Abstract: An inflatable transfer mattress includes a top panel, a bottom panel having a perimeter sealingly coupled to a perimeter of the top panel to define an internal volume therebetween, a first wedge pocket coupled to an outer surface of the top panel, and a first inflatable wedge. The internal volume is configured to receive an air flow therein. The first inflatable wedge is sized and configured to be inserted into the first wedge pocket and is configured to be transitioned from a deflated state to an inflated state. The first inflatable wedge is configured to rotate a patient to a predetermined angle with respect to the top panel in the inflated state.Type: GrantFiled: August 14, 2018Date of Patent: March 29, 2022Assignee: D.T. Davis Enterprises, Ltd.Inventor: David T. Davis
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Patent number: 11266551Abstract: A transfer mattress includes a top panel, a bottom panel, an outer stringer and an inner stringer. The top panel has a perimeter including a proximal edge and a distal edge, wherein a central longitudinal axis extends from the proximal edge to the distal edge. The bottom panel has a plurality of perforations and a perimeter including a proximal edge and a distal edge coupled to the perimeter of the top panel. The outer stringer and inner stringer each have a superior edge coupled to the top panel and an inferior edge coupled to the bottom panel and a longitudinal portion that is substantially parallel to the central longitudinal axis. The inner stringer is positioned between the central longitudinal axis and the outer stringer.Type: GrantFiled: October 18, 2018Date of Patent: March 8, 2022Assignee: D.T. Davis Enterprises, Ltd.Inventor: David T. Davis
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Publication number: 20220023121Abstract: The present disclosure provides a method of positioning a patient. The patient is provided on a support surface, an inflatable positioning mattress disposed between the patient and the support surface. Air flow into the inflatable positioning mattress is initiated to inflate the inflatable positioning mattress. A downward force is applied on the inflatable positioning mattress proximate to a first side of the support surface. A portion of the inflatable positioning mattress proximate to a second side of the support surface is raised. At least one wedge is positioned beneath the inflatable positioning mattress. Subsequently, the patient is lowered onto the at least one wedge.Type: ApplicationFiled: October 8, 2021Publication date: January 27, 2022Applicant: D.T. Davis Enterprises, Ltd., d/b/a Hovertech InternationalInventor: David T. Davis
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Patent number: 11191686Abstract: A multi-cell inflatable jack includes a plurality of jack elements. Each of the plurality of jack elements includes a body having a predetermined perimeter shape and defining a perimeter chamber and a central chamber. A valve is coupled to the body and configured to provide air flow to one of the perimeter chamber or the central chamber. A plurality of flow control stringers are located between the first chamber portion and the second chamber portion and are configured to control an air flow rate into each of the perimeter chamber and the central chamber. At least one fastener is formed on the body and configured to attach the jack element to at least one additional jack element in a multi-cell stack.Type: GrantFiled: April 10, 2018Date of Patent: December 7, 2021Assignee: D.T. Davis Enterprises, Ltd.Inventor: Jason K. Werkheiser
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Publication number: 20210364094Abstract: A valve includes a valve seat and a valve stem. The valve seat includes a seat body defining a stem channel and a sealing element. The valve stem includes a stem body sized and configured for insertion into the stem channel having a proximal end, a distal end, and a surface extending therebetween. The stem body defines a channel extending from the proximal end to the distal end and defines at least one opening extending through the surface to the channel. A coupling element is formed over at least a portion of the surface of the valve stem and configured to provide advancement of the valve stem within the stem channel in a distal or proximal direction.Type: ApplicationFiled: March 30, 2018Publication date: November 25, 2021Applicant: D.T. Davis Enterprises, Ltd. (d.b.a. Hovertech International)Inventors: Scott D. Moore, John F. Englebert
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Patent number: 11141332Abstract: The present disclosure provides a method of positioning a patient. The patient is provided on a support surface, an inflatable positioning mattress disposed between the patient and the support surface. Air flow into the inflatable positioning mattress is initiated to inflate the inflatable positioning mattress. A downward force is applied on the inflatable positioning mattress proximate to a first side of the support surface. A portion of the inflatable positioning mattress proximate to a second side of the support surface is raised. At least one wedge is positioned beneath the inflatable positioning mattress. Subsequently, the patient is lowered onto the at least one wedge.Type: GrantFiled: December 21, 2018Date of Patent: October 12, 2021Assignee: D.T. Davis Enterprises, Ltd.Inventor: David T. Davis
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Publication number: 20210186780Abstract: A transfer mattress includes a top panel, a bottom panel, an outer stringer and an inner stringer. The top panel has a perimeter including a proximal edge and a distal edge, wherein a central longitudinal axis extends from the proximal edge to the distal edge. The bottom panel has a plurality of perforations and a perimeter including a proximal edge and a distal edge coupled to the perimeter of the top panel. The outer stringer and inner stringer each have a superior edge coupled to the top panel and an inferior edge coupled to the bottom panel and a longitudinal portion that is substantially parallel to the central longitudinal axis. The inner stringer is positioned between the central longitudinal axis and the outer stringer.Type: ApplicationFiled: October 18, 2018Publication date: June 24, 2021Applicant: D.T. DAVIS ENTERPRISES, LTD. (d/b/a HOVERTECH INTERNATIONAL)Inventor: David T. Davis
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Publication number: 20210154069Abstract: An inflatable transfer mattress includes a top panel, a bottom panel having a perimeter sealingly coupled to a perimeter of the top panel to define an internal volume therebetween, a first wedge pocket coupled to an outer surface of the top panel, and a first inflatable wedge. The internal volume is configured to receive an air flow therein. The first inflatable wedge is sized and configured to be inserted into the first wedge pocket and is configured to be transitioned from a deflated state to an inflated state. The first inflatable wedge is configured to rotate a patient to a predetermined angle with respect to the top panel in the inflated state.Type: ApplicationFiled: August 14, 2018Publication date: May 27, 2021Applicant: D.T. Davis Enterprises, LTD., d/b/a Hovertech InternationalInventor: David T. Davis