Patents by Inventor Dennis Vroegindeweij
Dennis Vroegindeweij 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).
-
Patent number: 11724914Abstract: A rack for a stairway guide suitable for providing good grip in curves comprises a bendable strip body, said bendable strip body comprising a first main side and a second main side, the first main side being provided with a series of equidistant engagement elements, each element being chosen from i) a hole, and ii) a protrusion. Both longitudinal sides are provided with a series of indentations. Being bendable, a stairway guide can be manufactured easily by bending the rack in the desired shape defined by the stairway guide.Type: GrantFiled: November 26, 2018Date of Patent: August 15, 2023Assignee: Devi-Group B.V.Inventor: Dennis Vroegindeweij
-
Patent number: 11198593Abstract: A stairlift for conveying a load along a staircase includes a stairlift guide (stairlift rail), a carriage carried by the stairlift guide and moveable along the stairlift guide, the carriage comprising a carriage drive to drive the carriage along the stairlift guide. A stairlift carriage with reduced energy consumption comprises a body of revolution mounted hingably about a first axis to a frame of the stairlift carriage, while being able to rotate about an axis of rotation at a distance from said first axis.Type: GrantFiled: November 26, 2018Date of Patent: December 14, 2021Assignee: DEVI-GROUP BVInventors: Dennis Vroegindeweij, Thijmen Johannes Groot
-
Publication number: 20200361748Abstract: A rack for a stairway guide suitable for providing good grip in curves comprises a bendable strip body, said bendable strip body comprising a first main side and a second main side, the first main side being provided with a series of equidistant engagement elements, each element being chosen from i) a hole, and ii) a protrusion. Both longitudinal sides are provided with a series of indentations. Being bendable, a stairway guide can be manufactured easily by bending the rack in the desired shape defined by the stairway guide.Type: ApplicationFiled: November 26, 2018Publication date: November 19, 2020Applicant: Devi-Group B.V.Inventor: Dennis Vroegindeweij
-
Publication number: 20200290844Abstract: A stairlift for conveying a load along a staircase includes a stairlift guide (stairlift rail), a carriage carried by the stairlift guide and moveable along the stairlift guide, the carriage comprising a carriage drive to drive the carriage along the stairlift guide. A stairlift carriage with reduced energy consumption comprises a body of revolution mounted hingably about a first axis to a frame of the stairlift carriage, while being able to rotate about an axis of rotation at a distance from said first axis.Type: ApplicationFiled: November 26, 2018Publication date: September 17, 2020Applicant: DEVI-GROUP BVInventors: Dennis VROEGINDEWEIJ, Thijmen Johannes GROOT
-
Publication number: 20140083801Abstract: Transport unit 1 for climbing or descending a slope or stairs along a rail provided with a strip, the transport unit comprises a main frame 3 and a guide mechanism 5. The guide mechanism 5 may have at least two guides 13 which guide the transport unit along the rail and a drive mechanism with a drive wheel for driving the transport unit along the rail by engaging the strip at an engagement point. The main frame 3 may be suspended from the guide mechanism 5 in a position around, substantially equal and/or lower than the engagement point.Type: ApplicationFiled: January 6, 2012Publication date: March 27, 2014Applicant: HANDICARE STAIRLIFTS B.V.Inventors: Dennis Vroegindeweij, Johannes Gerardus Cornelis Hoedjes
-
Publication number: 20110024237Abstract: The invention relates to a slope lift for climbing or descending a slope or stairs along a guide (9), provided with a transport unit (3), configured to be carried by the guide and to advance along the guide, wherein the transport unit comprises a main frame (11) and a first and second subframe (13, 15), wherein the subframes are provided with at least two guide wheels (39, 41, 17) which guide the transport unit along the guide and the main frame is provided with a support wheel (25) and a drive wheel (19) connected to a drive (21) which advances the transport unit along the guide. The first subframe and the main frame are coupled together in such a way that the movements of the first subframe and the main frame are mirror-symmetrical with respect to a plane of symmetry located between the first subframe and the main frame.Type: ApplicationFiled: December 10, 2008Publication date: February 3, 2011Applicant: FREELIFT B.V.Inventor: Dennis Vroegindeweij
-
Patent number: 7568555Abstract: The invention relates to a guide along a staircase, along which a carriage of for instance, a stair walking aid or a stair lift is displaceable. This can herein comprise at least one elongate tube and engaging means for the carriage, wherein the tube comprises a stationary segment and at least one tiltable segment which are connected by means of a tilting mechanism in order to tilt the tiltable segment selectively away from and to a position lying in the line of the stationary segment, wherein the tilting mechanism is situated substantially in the interior of at least one of the tiltable segment and the stationary segment.Type: GrantFiled: June 20, 2002Date of Patent: August 4, 2009Assignee: Freelift B.V.Inventors: Dennis Vroegindeweij, Martinus J. Hester
-
Patent number: 7523807Abstract: The present invention relates to a device for transport along a staircase of persons and/or goods, which staircase extends between two platforms, and wherein the device includes: a guide which in the arranged situation extends at least along the staircase, a stationary segment and at least one tiltable segment; a tilting mechanism between the segments so as to selectively tilt the tiltable segment between a position lying in line with the stationary segment and a position substantially folded out of the space above one of the platforms; a carriage with transport means for persons and/or goods and a drive for advancing movement along the guide; and a transmission to selectively engage the carriage in the vicinity of the tilting mechanism to transmit movement of the carriage along the guide onto the tiltable segment for a tilting movement thereof.Type: GrantFiled: June 2, 2004Date of Patent: April 28, 2009Assignee: Freelift B.V.Inventors: Dennis Vroegindeweij, Martinus Josephus Hester
-
Publication number: 20080271953Abstract: An incline lift unit (2) is designed for conveying a load along a guide (3) with a varying angle of inclination. The incline lift unit (2) comprises a conveying unit (5), which is designed to be carried by the guide (3) and to move along the guide (3). The incline lift unit (2) comprises a load carrier (4), which is rotatably connected to the conveying unit (5). The incline lift unit (2) comprises rotation means (31) and a control unit (37) for driving the rotation means (31) in such a manner that the load carrier (4) assumes a desired orientation relative to the vertical. The conveying unit (5) comprises a conveying frame (29) and two-gear mechanisms (41). The gear mechanisms (41) are rotatably connected to the conveying frame (29) and comprise a gearwheel (49). The gearwheel (49) is intended for engagement with a gear rack (22) of the guide. The incline lift unit (2) furthermore comprises detection means (55) for detecting a difference in rotation of the gearwheels (49).Type: ApplicationFiled: October 5, 2006Publication date: November 6, 2008Applicant: FREELIFT B.V.Inventor: Dennis Vroegindeweij
-
Publication number: 20070272487Abstract: The present invention relates to a device for transport along a staircase of persons and/or goods, which staircase extends between two platforms, and wherein the device includes: a guide which in the arranged situation extends at least along the staircase, a stationary segment and at least one tiltable segment; a tilting mechanism between the segments so as to selectively tilt the tiltable segment between a position lying in line with the stationary segment and a position substantially folded out of the space above one of the platforms; a carriage with transport means for persons and/or goods and a drive for advancing movement along the guide; and a transmission to selectively engage the carriage in the vicinity of the tilting mechanism to transmit movement of the carriage along the guide onto the tiltable segment for a tilting movement thereof.Type: ApplicationFiled: June 2, 2004Publication date: November 29, 2007Applicant: FREELIFT B.V.Inventors: Dennis Vroegindeweij, Martinus Hester
-
Publication number: 20070235265Abstract: An incline lift unit (2) comprises a conveying unit (5), a load unit (4) which is rotatably connected to the latter, a positioning device (20), and a locking device (100). The positioning device is designed to turn the load unit with respect to the conveying unit in such a manner that, in use, the load unit assumes a desired load orientation relative to the force of gravity. The locking device comprises a locking means (133). The locking means locks the rotatable connection between the load unit and the positioning device if the load unit has assumed an undesirable load orientation. The locking device comprises a reference element (131) which is movable with respect to the load unit and the conveying unit, its position with respect to the load unit being determined by the direction of the force of gravity. The load unit is able to assume at least a neutral position and a locking position at the desired and undesired load orientation, respectively, with respect to the reference element.Type: ApplicationFiled: June 22, 2005Publication date: October 11, 2007Inventor: Dennis Vroegindeweij
-
Patent number: 7210563Abstract: The invention relates to a guide for a lift along a staircase, comprising an elongate profile with at least one edge thereon, which edge extends along a considerable part of the length of the profile, wherein the edge of the profile is serrated and forms a gear rack for engagement thereon by a drive of the lift.Type: GrantFiled: April 14, 2003Date of Patent: May 1, 2007Assignee: Freelift B.V.Inventor: Dennis Vroegindeweij
-
Publication number: 20050224294Abstract: The invention relates to a guide for a lift along a staircase, comprising an elongate profile with at least one edge thereon, which edge extends along a considerable part of the length of the profile, wherein the edge of the profile is serrated and forms a gear rack for engagement thereon by a drive of the lift.Type: ApplicationFiled: April 14, 2003Publication date: October 13, 2005Inventor: Dennis Vroegindeweij
-
Publication number: 20040238286Abstract: The invention relates to a guide along a staircase, along which a carriage of for instance, a stair walking aid or a stair lift is displaceable. This can herein comprise at least one elongate tube and engaging means for the carriage, wherein the tube comprises a stationary segment and at least one tiltable segment which are connected by means of a tilting mechanism in order to tilt the tiltable segment selectively away from and to a position lying in the line of the stationary segment, wherein the tilting mechanism is situated substantially in the interior of at least one of the tiltable segment and the stationary segment.Type: ApplicationFiled: July 19, 2004Publication date: December 2, 2004Inventors: Dennis Vroegindeweij, Martinus J Hester
-
Patent number: 6712192Abstract: A staircase guide for a device for ascending a staircase, the device has a frame with a carrying element for people or goods and a drive connected to the frame. The guide has a cylindrical tube to be adapted to a staircase with at least one protrusion which extends in longitudinal direction of the tube. The tube has an engaging surface for co-action with a drive element of the drive for the purpose of displacing the stairlift and a support surface for support of the drive by a support member in order to hold at least the carrying element upright.Type: GrantFiled: September 5, 2002Date of Patent: March 30, 2004Assignee: Freelift B.V.Inventors: Martinus J. Hester, Dennis Vroegindeweij
-
Publication number: 20020074189Abstract: The present invention relates to a device for transporting persons along a staircase, comprising:Type: ApplicationFiled: October 11, 2001Publication date: June 20, 2002Applicant: Freelift B.V.Inventors: Martinus J. Hester, Dennis Vroegindeweij
-
Patent number: D898323Type: GrantFiled: January 8, 2018Date of Patent: October 6, 2020Assignee: DeVi-Group BVInventor: Dennis Vroegindeweij