Patents by Inventor Andreas Stuffel
Andreas Stuffel 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).
-
Publication number: 20080190733Abstract: A passenger conveyor handrail (30) includes a plurality of teeth (36) that interact with a toothed driving member (42). In a disclosed example, a low friction material (60) is placed near an end of the teeth (36) on the handrail (30). The low friction material (60) facilitates the teeth sliding along a guidance (70) but does not interfere with a desired engagement between the teeth (36) and corresponding teeth (46) on the driving member (42).Type: ApplicationFiled: August 22, 2005Publication date: August 14, 2008Inventors: Changsheng Guo, Klaus Seehausen, Bernward Engelke, Detlev Lindemeier, John M. Milton-Benoit, Bryan R. Siewert, Fabio P. Bertolotti, William S. Weiss, John P. Wesson, Paul A. Stucky, Andreas Stuffel
-
Patent number: 7401693Abstract: A passenger conveyor including an endless conveyor band having a plurality of tread elements connected to and driven by a drive chain at each lateral edge thereof and a moving flange moving in use together with the conveyor band. The moving flange includes a plurality of discs attached to the tread elements and a plurality of bridges each attached between two consecutive discs. At least one bridge is attached to the drive chain by a pin and socket connection and a resilient locking element is arranged so as to bias in use the bridge against the chain.Type: GrantFiled: February 7, 2003Date of Patent: July 22, 2008Assignee: Otis Elevator CompanyInventors: Andreas Stuffel, Georg Warmbold
-
Patent number: 7357241Abstract: People conveyor (2) including an endless conveyor band (4) extending through an inclined portion (6), a first and a second turnaround portions (8) and a return portion (5) of an endless path and comprising a plurality of steps (10) connected to and driven by a step chain (12), the steps (10) comprising a step roller (18), the people conveyor (2) further including a step roller track (20) for guiding the step roller (18), the step roller track (20) extends along the path of the conveyor band (4) and has an inner and an outer rails (24, 22) for supporting the step roller (18), and a device (20) for restraining the step roller (18) against one of the inner and outer rails (24, 22).Type: GrantFiled: November 29, 2004Date of Patent: April 15, 2008Assignee: Otis Elevator CompanyInventors: Rainer Schmidt, Andreas Stuffel, Jeong Rak Kim
-
Publication number: 20080029365Abstract: Method for compensating the length of a movable handrail (10) in a passenger conveyor (2) having a passenger transportation belt (4) defining at least one passenger transportation surface (8), the handrail (10) is traveling along a closed handrail path which extends through an exposed path (12) along the passenger transportation belt (4), around a turnaround means (14), through a return path (16) and around a further turnaround means (18), and which hand rail path defines a handrail plane which is substantially perpendicular to the passenger transportation surface, the method comprising the following steps: (i) turning the handrail (10) out of the handrail plane; (ii) directing the handrail (10) through a compensation means (38); and (iii) turning the handrail (10) back into the handrail plane.Type: ApplicationFiled: July 5, 2004Publication date: February 7, 2008Inventors: Andreas Stuffel, Sameh Samdzada
-
Publication number: 20070170038Abstract: A device (40, 50) for reducing noise levels in passenger conveyor systems (10) at least partially obstructs spacing (36) at the interface between two steps (24, 30) to allow for relative movement between one step and the next. A sound transmission reducing member (40, 50) at least partially obstructs a sound pathway that includes the spacing to reduce the transmission of noise through the spacing. The sound transmission reducing member in one example is a barrier that partially blocks the interface, while in another, it extends completely across the interface. Additionally, sound absorbing material (46) may be secured to the underside of the steps in order to further reduce sound transmission toward the passengers and individuals near the conveyer.Type: ApplicationFiled: February 17, 2004Publication date: July 26, 2007Inventors: Carl Howard, Andreas Stuffel, Larry Hardin, Gldino Alves
-
Publication number: 20070144866Abstract: People conveyor (2) including an endless conveyor band (4) extending through an inclined portion (6), a first and a second turnaround portions (8) and a return portion (5) of an endless path and comprising a plurality of steps (10) connected to and driven by a step chain (12), the steps (10) comprising a step roller (18), the people conveyor (2) further including a step roller track (20) for guiding the step roller (18), the step roller track (20) extends along the path of the conveyor band (4) and has an inner and an outer rails (24, 22) for supporting the step roller (18), and a device (20) for restraining the step roller (18) against one of the inner and outer rails (24, 22).Type: ApplicationFiled: November 29, 2004Publication date: June 28, 2007Inventors: Rainer Schmidt, Andreas Stuffel, Jeong Kim
-
Publication number: 20070137980Abstract: A stepchain for a passenger conveyor includes a plurality of stepchain links (30, 130, 230). There is only one link-to-link interface (31) on each side of the steps (24) such that the number of links (30) on each side of the steps (24) is equal to the number of steps (24). The inventive arrangement reduces rotation or contraction of the stepchain between steps (24). Elongation of the stepchain is also reduced as there is a reduction in the number of interfaces (31). The inventive arrangement also facilitates arcuate movement of the steps (24) along a constant radius through the transition zones between the inclined area (27) and the landing areas (29). Having a truly arcuate movement allows for reducing the gap (33) between the steps (24) at the transition zones. In one example at least one needle bearing (190) is associated with an attachment mechanism (184, 284) at the interface (31) between adjacent links (30) to allow for rotation between the stepchain links (30) and to eliminate the need for lubrication.Type: ApplicationFiled: February 7, 2003Publication date: June 21, 2007Inventors: Helmut Meyer, Andreas Stuffel, Jorg Ostermeier, Helene Ostemeier, Heike Rojahn
-
Patent number: 7222713Abstract: The invention pertains to an escalator (2) with an endless stair band (6) that is composed of several interconnected steps (4), wherein a step (4) contains a walking surface (16) and a front side (18) and is connected to respective lateral step chains (8) that are driven around a lower and an upper reversing point (22) by means of a drive, and wherein a step (4) contains at least one step roller (34) that is guided by a step roller guide. The invention is characterized by the fact that the point (32) at which a step (4) is fastened to the step chain (8) is arranged in the vicinity of the front side (18) of the step (4).Type: GrantFiled: November 15, 2001Date of Patent: May 29, 2007Assignee: Otis Elevator CompanyInventors: Uwe Hauer, Andreas Stuffel, Helmut J. W. Meyer, Richard N. Fargo
-
Publication number: 20070000753Abstract: A passenger conveyor drive assembly (40) includes drive members such as belts (42) that engage a step chain (30). A monitoring device (50) provides an indication of a damaged or broken drive member (42) by monitoring the relative rotations between wheels (44, 46). In one example, relative rotation between deflection wheels (46) provides an indication that one of the drive members (42) is not performing as well as the other. In another example, a comparison between the speed of rotation of the drive wheels (44) on the one hand and the deflection wheels (46) on the other hand allows for independently monitoring each of the drive members (42) of the drive assembly. In a disclosed embodiment, the monitoring device includes rotating members (52, 56) that normally rotate in unison and move into another position when there is relative rotation between the selected wheels. Such movement provides an indication of a malfunction of the drive system and may actuate the brake as needed.Type: ApplicationFiled: October 29, 2003Publication date: January 4, 2007Inventors: Markus Hame, Andreas Stuffel, Thosten Robke
-
Patent number: 7140484Abstract: Passenger conveyor (2) including an endless conveyor band (6) comprised of a plurality of tread elements (4) connected to and driven by a drive chain (8) at each lateral edge thereof, a moving flange moving in use together with the conveyor band (6), the moving flange being comprised of a plurality of discs (16) attached to the tread elements (4) and a plurality of bridges (18) each attached alternating between two consecutive discs (16), wherein a groove and tongue (70) engagement is provided between bridge (18) and disc (16), characterised in that an insert (64) made of a plastic material is provided between bridge (18) and disc (16).Type: GrantFiled: February 7, 2003Date of Patent: November 28, 2006Assignee: Otis Elevator CompanyInventors: Andreas Stuffel, Helmut Meyer, Yangying Anne Chen
-
Publication number: 20060254879Abstract: Passenger conveyor (2) including an endless conveyor band (6) comprised of a plurality of tread elements (4) connected to and driven by a drive chain (8) at each lateral edge thereof, a moving flange ( ) moving in use together with the conveyor band (6), the moving flange being comprised of a plurality of discs (16) attached to the tread elements (4) and a plurality of bridges (18) each attached between two consecutive discs (16), characterised in that at least one bridge (18) is attached to the drive chain (8) by means of a pin and socket connection (38) and that a resilient locking element (54) is arranged so as to bias in use the bridge (18) against the chain (8).Type: ApplicationFiled: February 7, 2003Publication date: November 16, 2006Inventor: Andreas Stuffel
-
Publication number: 20060144671Abstract: Passenger conveyor (2) including an endless conveyor band (6) comprised of a plurality of tread elements (4) connected to and driven by a drive chain (8) at each lateral edge thereof, a moving flange moving in use together with the conveyor band (6), the moving flange being comprised of a plurality of discs (16) attached to the tread elements (4) and a plurality of bridges (18) each attached alternating between two consecutive discs (16), wherein a groove and tongue (70) engagement is provided between bridge (18) and disc (16), characterised in that an insert (64) made of a plastic material is provided between bridge (18) and disc (16).Type: ApplicationFiled: February 7, 2003Publication date: July 6, 2006Inventors: Andreas Stuffel, Helmut Meyer
-
Publication number: 20060006045Abstract: People mover (2) comprising an endless tread belt (6) formed from several tread elements (4) connected to one another, which is driven by a drive unit about a first and second reversal point (22), and a side skirt (24) moved along with tread belt (6), the side skirt (24) comprising flange elements (28) joined to the tread element (4) and bridge elements (30) connected movably relative to flange elements (28). A sensor (38) is arranged adjacent to the side skirt (24), the sensor (38) having a limited detection range perpendicular to the circulation direction of side skirt (24), and a plurality of marking elements are arranged in a line on side skirt (24) along the circulating direction having a limited width perpendicular to the circulating direction.Type: ApplicationFiled: September 13, 2002Publication date: January 12, 2006Applicant: Otis Elevator CompanyInventors: Ralph Stripling, Dietmar Thaler, Frank Sansevero, Bernward Engelke, Andreas Stuffel, Peter von Riegen, Markus Muller, Olaf Marker, Carsten Deseniss, Ingo Engelhard, Uwe Hauer
-
Patent number: 6945379Abstract: Personnel conveyor (2) featuring endless personnel conveyor belt (6) formed of numerous step elements (4), in which step elements (4) are attached to conveyor chains (8) along both of their sides that are driven around a first and a second reversal element, and in which conveyor chains (8) are constructed of a multitude of chain links (10) that are connected to each other at pivots (12), and where the segmentation ratio of conveyor chain (8) to personnel conveyor belt (6) is 1:1, characterized in that two chain links (10), which are equally positioned in relation to a step element (4), are connected to each other by means of a through-going connecting axle (32) attached to chain links (16) between each two pivoting points of chain links (10).Type: GrantFiled: November 15, 2001Date of Patent: September 20, 2005Assignee: Otis Elevator CompanyInventors: Uwe Hauer, Andreas Stuffel, Joerg Ostermeier, Dietmar Thaler, Andreas Vogt
-
Patent number: 6868956Abstract: A passenger conveyor (2) contains an endless passenger conveyor belt (6) that is composed of several interconnected footboard elements (4), wherein the footboard elements (4) are respectively connected to transport chains (8) that are arranged laterally of the footboard elements and driven around a first and a second reversing point by means of a drive. This passenger conveyor is characterized by the fact that the footboard elements (4) are detachably connected to the transport chains (8) by means of one respective lateral holding device (34).Type: GrantFiled: November 15, 2001Date of Patent: March 22, 2005Assignee: Otis Elevator CompanyInventors: Uwe Hauer, Andreas Stuffel, Joerg Ostermeier, Dietmar Thaler, Andreas Vogt
-
Publication number: 20050000778Abstract: A passenger conveyor (2) contains an endless passenger conveyor belt (6) that is composed of several interconnected footboard elements (4), wherein the footboard elements (4) are respectively connected to transport chains (8) that are arranged laterally of the footboard elements and driven around a first and a second reversing point by means of a drive. This passenger conveyor is characterized by the fact that the footboard elements (4) are detachably connected to the transport chains (8) by means of one respective lateral holding device (34).Type: ApplicationFiled: November 15, 2001Publication date: January 6, 2005Inventors: Uwe Hauer, Andreas Stuffel, Joerg Ostermeier, Dietmar Thaler, Andreas Vogt
-
Publication number: 20040045790Abstract: Personnel conveyor (2) featuring endless personnel conveyor belt (6) formed of numerous step elements (4), in which step elements (4) are attached to conveyor chains (8) along both of their sides that are driven around a first and a second reversal element, and in which conveyor chains (8) are constructed of a multitude of chain links (10) that are connected to each other at pivots (12), and where the segmentation ratio of conveyor chain (8) to personnel conveyor belt (6) is 1:1, characterized in that two chain links (10), which are equally positioned in relation to a step element (4), are connected to each other by means of a through-going connecting axle (32) attached to chain links (16) between each two pivoting points of chain links (10).Type: ApplicationFiled: May 23, 2003Publication date: March 11, 2004Inventors: Uwe Hauer, Andreas Stuffel, Joerg Ostermeier, Dietmar Thaler, Andreas Vogt
-
Patent number: 6527099Abstract: An escalator drive machine includes a motor output sheave which drives a drive belt along a closed look between the output sheave and a drive sprocket. The output sheave engages the drive belt with the step chain such that the step chain and attached tread plates are propelled from one landing to the other. The output sheave includes a first set of teeth and a second set of teeth. The first set of teeth is around the output sheave hub to engage a set of belt teeth extending from the drive belt. The second set of teeth is preferably located along a rim of the output sheave and is engageable with corresponding link teeth located along each link in the drive chain. The second set of teeth maintain their relationship with the corresponding link teeth due to the first set of teeth, however, there is no contact therebetween. However, should the drive belt fail or become disengaged, the second set of teeth engage the corresponding link teeth.Type: GrantFiled: July 12, 2002Date of Patent: March 4, 2003Assignee: Otis Elevator CompanyInventors: Joerg Ostermeier, Helmut Meyer, Andreas Stuffel
-
Publication number: 20020179405Abstract: An escalator drive machine includes a motor output sheave which drives a drive belt along a closed look between the output sheave and a drive sprocket. The output sheave engages the drive belt with the step chain such that the step chain and attached tread plates are propelled from on landing to the other. The output sheave includes a first set of teeth and a second set of teeth. The first set of teeth is around the output sheave hub to engage a set of belt teeth extending from the drive belt. The second set of teeth is preferably located along a rim of the output sheave and is engageable with corresponding link teeth located along each link in the drive chain. The second set of teeth maintain their relationship with the corresponding link teeth due to the first set of teeth, however, there is no contact therebetween. However, should the drive belt fail or become disengaged, the second set of teeth engage the corresponding link teeth.Type: ApplicationFiled: July 12, 2002Publication date: December 5, 2002Inventors: Joerg Ostermeier, Helmut Meyer, Andreas Stuffel
-
Patent number: D490957Type: GrantFiled: February 7, 2003Date of Patent: June 1, 2004Assignee: Otis Elevator CompanyInventor: Andreas Stuffel