Abstract: An elevator hoistway door key multi-tool for elevator technicians', maintenance workers', and emergency rescuers' use. The invention is used to open elevator hoistway doors of different types in an emergency when, sometimes, time is critic. Elevator hoistway door key multi-tool comprises a housing assembly having at least two pins, and an elevator hoistway door key assembly. The elevator hoistway door key assembly comprises at least two elevator hoistway door keys. Each of the at least two elevator hoistway door keys pivots at one of at least two pins. The elevator hoistway door keys comprises, but are not limited to, T-shaped key, semicircular key and the flapper-type drop.

Abstract: A six DOF measurement aid module for determining 3D coordinates of points to be measured of an object surface, comprising a laser tracker for determining the position and orientation of the six DOF measurement aid module. The six DOF measurement aid module has a body comprising an object coupling device with an object interface, configured to couple, via the object interface, alternatively both a handle to the body with a fixed pose and the body to a mobile platform with a fixed pose, a sensor attachment coupling device with a sensor interface-configured to couple alternatively both a sensor attachment effecting non-contact measurement and a sensor attachment effecting tactile measurement to the body with a fixed pose via the sensor interface, and visual markings, which are arranged in a defined spatial relationship in a manner forming a pattern in a marking region on the body.

Abstract: Apparatus and methods to evaluate a pipe structure taking buckling into account can be implemented in a variety of applications. Responses can be measured at a set of receivers of a tool in response to exciting the pipe structure with one or more electromagnetic signals transmitted from a set of transmitters of the tool. The set of receivers and the set of transmitters can be located within the pipe structure. Circuitry can be used to determine the presence of buckling of the pipe structure based on comparison of the measured responses with one or more forward models of the pipe structure. The pipe structure may be associated with a well site, such as, for example, a casing structure for a production well.

Abstract: Methods includes calibrating robots without the use of external measurement equipment and copying working programs between un-calibrated robots. Both methods utilize the properties of a closed chain and the relative position of the links in the chain in order to update the kinematic models of the robots.

Abstract: An industrial robot system has at least one robot (1) having a robot coordinate system (xr1, yr1, zr1) and a positioner (2) having a positioner coordinate system (xp, yp, zp) and adapted to hold and change orientation of a workpiece by rotating about a rotational axis. Target points for the robot are programmed with respect to an object coordinate system (xo1, yo1, zo1). A robot controller (3), at least three calibration objects (24a-c) arranged on the positioner, and a calibration tool (26) held by the robot are provided. The positions of the calibration objects are determined for at least three different angles of the rotational axis of the positioner, to determine the direction of the rotational axis of the positioner and relation between the object coordinate system and the positioner coordinate system by performing a best fit between known and determined positions of the calibration objects.

Abstract: A machine having a pair of spaced structures, a plurality of ball and socket joints spaced apart on each structure, and six struts interconnecting the structures. Each strut engages with a respective ball and socket joint on each of the structures, and defines a variable distance between the centers of the ball and socket joints to which the strut is connected. At least one of the ball and socket joints to which the strut is connected has a plurality of the struts connected thereto, the ball and socket joint having a socket on each respective strut, co-operating with a sphere, the sockets having three engagement elements biased into engagement with the sphere.

Abstract: A multifunction instrument comprising four movable parts, including a first leg 12, an identical second leg 14, a pointer arm 16, and a connecting arm 18. Pointer arm 16 and connecting arm 18 are permanently but pivotally connected at pivot points 24A and 24B. Pivot points 20 A and B, 22 A and B, and 26 A and B are fastened by a removable fastener. The first leg 12 and second leg 14 have multiple holes drilled at intervals in the near end of each leg with a pivotal means of adjoining that allows for selecting various ratios. Legs 12 and 14 have a pivotal means of adjoining at pivot point 20A and 20B for determining angles and perspective. Legs 12 and 14 are calibrated and provide a straight edge, while flat surfaces provide printable space.

Abstract: Apparatus which can be used to calibrate, or provide measurement data on, a machine. The apparatus comprises two structures each with three spherical supports spaced in a triangular array thereon. The supports may be balls or sockets. The structures are interconnected by six members and each support has the ends of two members connected to it. The members are passive extensible measuring bars and the structures are respectively connected to fixed and movable parts of a machine so that movement of the machine parts causes relative movement between the structures and varies the lengths of the measuring bars. From measurements of the lengths of the measuring bars the actual movement of the machine part can be determined. Calibration of the spherical supports is carried out using a measuring bar which is pre-calibrated in a Zerodur jig.

Abstract: An adjustable spacer tool for spacing balusters includes an extendable pantograpic assembly having a first and second end and including evenly-spaced parallel uprights and X-shaped sets of cross-bars pivotally connected to one another. Each X-shaped set is pivotally connected to a pair of uprights adjacent upper ends thereof and pivotally and slidably connected to the uprights adjacent lower ends thereof. An arm, finger and cam extend outwardly from each end of the assembly to provide spacing between each end of the assembly and a desired surface for various sets of same-width balusters. Each arm is pivotally connected to one end of the assembly and to one end of the finger. The other end of the finger is pivotally and slidably connected to a respective end of the assembly. Each cam is pivotally connected to the arm distal the assembly. Removable connections permit adjustment of the overall length of the tool and replacement of parts.

Abstract: The present invention overcomes the disadvantages of the related art by providing a spatial reference system that includes at least one artifact assembly. The artifact assembly has a measuring bar assembly including an inner member with a proximate end and a distal end, an outer member with a proximate end and a distal end, and a compensating member with a proximate end and a distal end operatively disposed between said inner and said outer members. The distal end of the outer member is fixedly mounted to the distal end of the compensating member. The proximate end of the compensating member is fixedly mounted to the proximate end of the inner member.

Abstract: Apparatus which can be used to calibrate, or provide measurement data on, a machine. The apparatus comprises two structures each with three spherical supports spaced in a triangular array thereon. The supports may be balls or sockets. The structures are interconnected by six members and each support has the ends of two members connected to it. The members are passive extensible measuring bars and the structures are respectively connected to fixed and movable parts of a machine so that movement of the machine parts causes relative movement between the structures and varies the lengths of the measuring bars. From measurements of the lengths of the measuring bars the actual movement of the machine part can be determined. Calibration of the spherical supports is carried out using a measuring bar which is pre-calibrated in a Zerodur jig.

Abstract: A downhole caliper instrument utilizing a linear or arcuate magneto resistive sensor to determine the position of one or more caliper arms which extend from a carrier tool to touch the surface of a borehole wall. A processor and firmware are included to calculate and plot the borehole radius. A plurality of magneto resistive sensors are provided to calculate the sine, cosine and tangent for accurate motion of each independent arm. The magneto resistive sensors sense the position a precise magnetic ruler linked to the caliper arm. The position of the caliper arm determines the radius of the borehole. Calculation of Radius/Diameter is preferably performed in the computer on surface. The downhole controller's firmware controls the multiplexer switching, A/D conversion and other functions.

Abstract: Apparatus which can be used to calibrate, or provide measurement data on, a machine. The apparatus comprises two structures each with three spherical supports spaced in a triangular array thereon. The supports may be balls or sockets. The structures are interconnected by six members and each support has the ends of two members connected to it. The members are passive extensible measuring bars and the structures are respectively connected to fixed and movable parts of a machine so that movement of the machine parts causes relative movement between the structures and varies the lengths of the measuring bars. From measurements of the lengths of the measuring bars the actual movement of the machine part can be determined. Calibration of the spherical supports is carried out using a measuring bar which is pre-calibrated in a Zerodur jig.

Abstract: A downhole caliper instrument utilizing a magneto resistive sensor to determine the position of a caliper arm which extends to touch the surface of the borehole wall.