Patents Assigned to Inventio
  • Secondary part of a linear motor, method for the production thereof, linear motor with secondary part and use of the linear motor
    Patent number: 6742631
    Abstract: A secondary part of a linear motor, for use in an elevator installation, includes a frame having a plurality of free spaces formed therein, each of the free spaces being surrounded by an inner surface of the frame, at least one magnet positioned in an associated one of each of the free spaces, each magnet having at least one end face spaced from the inner surface, and an adhesive material filling a space between the end surface and the inner surface wherein the magnet is selectively positionable in the associated free space prior to gluing of the magnet to the frame by the adhesive material. The secondary part can be used in a linear motor having: a first primary part, a further part being one of a secondary primary part and an iron element, and the secondary part disposed between the first primary part and the further part.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: June 1, 2004
    Assignee: Inventio AG
    Inventor: Steffen Grundmann
  • Super-capacitor energy storage unit for elevator installations
    Patent number: 6742630
    Abstract: Elevator installations with electric drive systems are equipped with devices (10) to reduce the power supply connection rating which have energy storage units (11) which are formed entirely or partly from so-called supercapacitors (13). The device (10) according to the invention has the effect on the one hand that power peaks during starting and braking operations are compensated by the exchange of energy between the storage unit (11) and motor supply, and on the other hand that the power consumption occurring during a trip is also spread over a part of the at-rest time. Supercapacitors (13) as energy stores tolerate by comparison with electrochemically acting accumulators a much higher number of charging and discharging cycles at high values of current.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: June 1, 2004
    Assignee: Inventio AG
    Inventor: Thomas Eilinger
  • Rope elevator
    Patent number: 6742628
    Abstract: A rope elevator has a car and a counterweight hanging on suspension ropes and moving in opposite directions along guiderails in a hoistway. The elevator is driven by a drive unit with a traction sheave that is placed above the travel-path of the counterweight so that the upper part of the car can reach a position in the hoistway above the drive unit. The suspension ropes run from a first hitch-point in the vicinity of the counterweight-side side-wall and around one or two pulleys of the counterweight, around the traction sheave, down and horizontally/diagonally across two pulleys underneath the car, and up to a second hitch-point on the car-side side-wall of the hoistway. The drive unit is fastened by a supporting construction exclusively to the two counterweight guiderails and to the car guiderail on the counterweight side of the car.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: June 1, 2004
    Assignee: Inventio AG
    Inventor: Zeno Bauer
  • Inspection opening in an elevator car
    Patent number: 6739432
    Abstract: An elevator car is of a construction which facilitates inspection and maintenance function while enhancing passenger safety. The car includes a closeable inspection and maintenance opening in a sidewall. A transparent inspection window or an inspection grille forms a closure for the opening. The closure may be lockable, and can also include a sensor to monitor its state.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: May 25, 2004
    Assignee: Inventio AG
    Inventor: Hans Elsener
  • Door track for an elevator door system
    Patent number: 6736241
    Abstract: An elevator door system for an entrance opening to an elevator cab. The system includes a two-part door having an open position and a closed position. The two-part door includes a first door portion for traversing across and covering a portion of the entrance opening as the two-part door moves between the open position and the closed position of the two-part door. The two-part door also includes a second door portion for traversing across and covering another portion of the entrance opening as the two-part door moves between the open position and the closed position of the two-part door. A header track includes a rail with a door track for guiding movement of the first and the second door portions. The door track is held onto the rail of the header track via an S-shaped spring clip.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: May 18, 2004
    Assignee: Inventio AG
    Inventor: Michael G. Miller
  • Contactless switching device for an elevator safety chain
    Patent number: 6732839
    Abstract: A monitoring device for an elevator includes a plurality of switching devices connected in a series safety chain. Each switching device has an active unit generating a pattern and a passive unit that responds to the pattern within a defined spacing between the units.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: May 11, 2004
    Assignee: Inventio AG
    Inventor: Kilian Schuster
  • Drive-capable support or traction means and method for production thereof
    Publication number: 20040083706
    Abstract: A drive-capable support or traction member and a method for the production thereof. The support or traction member has at least one layer of strands of synthetic fiber material and an outer casing encasing the strands. A lubricant is selectively incorporated in the support or traction member so that the strands are lubricated for movement relative to one another with a coefficient of friction.
    Type: Application
    Filed: October 24, 2003
    Publication date: May 6, 2004
    Applicant: Inventio AG
    Inventor: Roland Eichhorn
  • Support of a drive unit for a lift
    Patent number: 6729597
    Abstract: A lift drive unit support apparatus consists of multiple height-adjustable mounts, which conduct the forces of the drive unit to a foundation, fasten the drive unit in an earthquake-proof manner, and isolate it in terms of solid-borne sound from the foundation. The drive unit can be levelled in height by means of a tool, such as a shaft spanner, by way of an adjusting sleeve screwed into the engine frame. A foot plate inserted below the adjusting sleeve transmits vertical forces from the adjusting sleeve to a damping element. Horizontal forces are transmitted from the adjusting sleeve by way of a tube to a base plate and from there to an anchor bolt, which also prevents upward lift-off of the drive unit.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: May 4, 2004
    Assignee: Inventio AG
    Inventors: Andrzej Cholinski, Heinrich Küttel
  • Call transmitter for the input of control commands, particularly for an elevator installation
    Patent number: 6724888
    Abstract: A call transmitter for the input of control commands, in particular for an elevator installation, has at least one carrier element that can be selectively received in an opening in either end face of a call transmitter housing. The housing has an inner positioning element preventing movement of the carrier element between the openings. The housing can be installed in an aperture in a front plate such that either the first end face and the carrier element are flush with the outer surface of the front plate, or a radially outwardly extending flange at the second end face abuts the outer surface with the flange and the carrier element projecting.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: April 20, 2004
    Assignee: Inventio AG
    Inventor: Hugo Felder
  • Elevator safety plank assembly
    Patent number: 6722475
    Abstract: A safety plank assembly for mounting on a bottom of an elevator car in a traction-type elevator system includes a pair of parallel extending plank beams connected by a cross support member. A rope sheave is rotatably mounted at each of opposed ends of the plank beams to define a diagonal rope path through the assembly for underslung support of the elevator car. Traction weights and balancing weights can be attached to the beams and provision is made for mounting safety equipment.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: April 20, 2004
    Assignee: Inventio AG
    Inventors: Michael G. Miller, Karl B. Orndorff
  • Safety brake with retardation-dependent braking force
    Patent number: 6719101
    Abstract: A safety brake for braking a load receiving portion of an elevator has at least one brake wedge that penetrates a gap between a resiliently supported pressure body and a guide rail for the load receiving portion of the elevator and thereby generates a braking force. A stroke limiting device limits the penetration stroke of the brake wedge and controls the braking force in dependence on the retardation value of the load receiving portion of the elevator.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: April 13, 2004
    Assignee: Inventio AG
    Inventor: Stefan Hugel
  • Integral elevator hydraulic power unit
    Patent number: 6719099
    Abstract: A hydraulic power unit for use in conjunction with an elevator construction having an elevator car operably connected to a pair of hydraulic rams comprises a chassis having a floor and a sidewall forming a hydraulic fluid sump region. The hydraulic rams are mounted to the floor in the sump region. A hydraulic fluid reservoir is supported by the chassis, which also supports a pump/motor unit for the rams. Leveling feet mounted to the chassis allow the power unit to accommodate a variety of conditions in the hoistway pit.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: April 13, 2004
    Assignee: Inventio AG
    Inventors: Miles P. Lamb, William J. Rafferty
  • Load carrying means for cable elevators with integrated load measuring equipment
    Patent number: 6715587
    Abstract: A load carrying and measuring apparatus for cable elevators includes a support construction attached to an underside of a base frame or a carrier frame for an elevator car and a pair of cable rollers attached below the support construction for engaging a support cable. A resilient element attaches at least one of the cable rollers to the support construction whereby the resilient element is deformed by load-dependent cable forces acting through the cable roller. A sensor detects the deformation of the resilient element and sends a signal to the elevator control. A resilient isolating element can be connected between the support construction the base frame or the carrier frame.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: April 6, 2004
    Assignee: Inventio AG
    Inventors: Denis Sittler, Urs Baumgartner
  • Elevator, procedure for the maintenance of the elevator, procedure for themodernization of an elevator and clamping device for an elevator
    Publication number: 20040045772
    Abstract: An elevator having a car and a suspension member or respectively hoisting member for carrying an operating weight. Furthermore, a power transmission is intended for moving the suspension member and the hoisting member over at least one moving surface of the power transmission. The power transmission and the suspension member or respectively hoisting member are rope-shaped and/or belt-shaped. Also, the power transmission and the suspension member or respectively hoisting member are physically separated from each other. The power transmission and the suspension member or respectively hoisting member are stretched against at least one supporting body.
    Type: Application
    Filed: September 10, 2003
    Publication date: March 11, 2004
    Applicant: Inventio AG
    Inventors: Peter Spiess, Gert Silberhorn, Andreas Gaussmann, Peter Hitz, Dieter Mehr, Johannes Kocher
  • Elevator without a machine room
    Patent number: 6691833
    Abstract: An elevator has a car that moves along at least one guiderail in a hoistway and the car is supported by at least one suspension rope that is driven by a drive unit. The drive unit has a drive motor that rotates rope sheave over which the suspension rope passes. The drive unit is located in an upper section of the hoistway and projects over at least part of the car. To assure safe access to the drive unit when the dimensions of the hoistway are efficiently minimized, the car has a closable opening in the roof through which the drive unit is accessible.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: February 17, 2004
    Assignee: Inventio AG
    Inventors: Hans Elsener, Urs Ammon
  • Escalator or moving walkway with overhead support
    Patent number: 6685001
    Abstract: An escalator or moving walkway comprises at least one support structure which is supported between bearings. At least one upstanding support, which may be an arch or column, is provided. The support structure is connected at several points to the arch or the column, preferably by cables or rods. The columns or arches may be provided at each of the two sides of the moving walkway or the escalator and if the columns or arches and converge or run together above the escalator or moving walkway.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: February 3, 2004
    Assignee: Inventio AG
    Inventor: David Krampl
  • Safety braking device for elevator
    Patent number: 6668985
    Abstract: A friction element for use in a safety braking device for braking elevators co-operating with at least one elevator guide rail. The friction element has at least one friction surface that can be pressed against the guide rail to decelerate the elevator. The friction element is formed of a fiber-reinforced, ceramic composite material, containing silicon carbide and carbon with carbon fibers as reinforcing components. Preferably, the composite material is formed by a matrix of silicon carbide and carbon and the reinforcing component are exclusively carbon fibers with a minimum length of 10 mm and the volume content of carbon fibers in the friction element being between 30% and 70%.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: December 30, 2003
    Assignee: Inventio AG
    Inventors: Walter Krenkel, Ralph Renz
  • Door frame at elevator shaft doors
    Patent number: 6668494
    Abstract: An elevator shaft door frame has posts of a basic configuration that can be combined with cladding profile members of different shape and size. The posts include a plate-like profile member with two U-shaped corrugations and a plate fastened to the profile member and covering the open rear side of the corrugations. A decorative cladding profile member is fastened to the post and has one U-shaped profile member abutting and fastened to the plate and another U-shaped profile member abutting and fastened to the one U-shaped profile member.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: December 30, 2003
    Assignee: Inventio AG
    Inventors: Jules Christen, Roland Weidmann, Peter Spiess
  • Self-balancing synchronization assembly for a hydraulic elevator
    Patent number: 6659231
    Abstract: A self-balancing synchronization assembly has a support beam pivotally mounted on a guide rail adjacent a hydraulic elevator jack. A synchronization bracket is pivotally mounted at one end of the beam and a pair of synchronization cables is connected between the bracket and a telescoping part of the jack. A return cable is connected between the other end of the beam and the hoistway pit to balance the load and includes a turnbuckle for retensioning the synchronization cables. A second synchronization bracket can be pivotally mounted at the one end of the support beam to synchronize a three-stage jack.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: December 9, 2003
    Assignee: Inventio AG
    Inventors: Karl B. Orndorff, Eileen W. Rossman
  • Method for selection of the most favorable elevator of an elevator installation comprising at least two elevator groups
    Patent number: 6655501
    Abstract: A method for the selection of the most favorable elevator of a elevator installation having at least two elevator groups, wherein a route with changeovers is available for reaching a destination floor from a start floor, the route being broken down into several stretches. An elevator of one of the elevator groups is allocated to each of the stretches solving the multi-route problem in a destination call multi-group control with journeys involving changeovers.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: December 2, 2003
    Assignee: Inventio AG
    Inventor: Miroslav Kostka