Abstract: A maintenance control program for use in maintaining mechanical and electro-mechanical equipment is provided. The maintenance control program includes a completed survey of the mechanical and electro-mechanical equipment. The completed survey is configured to document the physical characteristics of the mechanical and electro-mechanical equipment and an assessment of a plurality of metrics concerning the mechanical and electro-mechanical equipment. An algorithm is configured to apply values to the assessment of the plurality of metrics. A schedule of code required maintenance tasks is developed for the mechanical and electro-mechanical equipment, wherein an interval of the required maintenance tasks is determined by the algorithm based on the values applied to the assessment of the plurality of metrics.

Abstract: A maintenance control program for use in maintaining mechanical and electro-mechanical equipment is provided. The maintenance control program includes a completed survey of the mechanical and electro-mechanical equipment. The completed survey is configured to document the physical characteristics of the mechanical and electro-mechanical equipment and an assessment of a plurality of metrics concerning the mechanical and electro-mechanical equipment. An algorithm is configured to apply values to the assessment of the plurality of metrics. A schedule of code required maintenance tasks is developed for the mechanical and electro-mechanical equipment, wherein an interval of the required maintenance tasks is determined by the algorithm based on the values applied to the assessment of the plurality of metrics.

Abstract: A stability structure for a mobile electronic device is provided. The stability structure includes a plurality of aglets. An elastic member is connected to and extends between the aglets. The elastic member is placed against a back surface of a mobile electronic device or a back surface of its protective case. Adhesive members attach the aglets to the back surface of the mobile electronic device or the back surface of its protective case. In an installed position, the elastic member and the back surface of the mobile electronic device or the back surface of its protective case form a gap to receive a user's fingers. The elastic member urges the inserted fingers against the back surface of the mobile electronic device or the back surface of its protective case thereby allowing the user to securely hold the mobile electronic device with one hand.

Abstract: The invention comprises a support structure for an elevator system comprising a pit channel module having a first leg and a second leg connected at a corner, a header module having three sides forming a triangle which is disposed in a horizontal plane above the pit channel module, and pairs of car guide rails and counterweight guide rails extending vertically from the pit channel module to the header module. Vertical forces generated within the system are transferred from the rails through the pit channel module and into a foundation so that at least substantially no vertical load forces are imparted on the building structure which the system serves.

Abstract: An elevator cab lighting assembly comprising a refractive sheet mounted on the interior of the elevator cab. A light source is mounted at and conducts light into an outer edge of the refractive sheet. The light received at the outer edge of the travels along the refractive sheet and passes out of the planar surface and inner edge of the sheet exposed within the interior of the cab. The refractive sheet may be randomly sanded or sandblasted to provide diffuse light. The sheet may be etched or routed in standard or custom designs to provide accent highlighting. The lighting assembly is housed within a transom assembly that may be accessed from the exterior of the cab.

Abstract: A mechanical system and method for constructing a self-supporting, elevator support structure and a traction (rope-operated) elevator system comprising such a support structure. A rail-climbing platform is used to progressively erect higher levels of modular rail sections and other components of the system without the need for external props such as a scaffold.

Abstract: The invention comprises a support structure for an elevator system comprising a pit channel module having a first leg and a second leg connected at a corner, a header module having three sides forming a triangle which is disposed in a horizontal plane above the pit channel module, and pairs of car guide rails and counterweight guide rails extending vertically from the pit channel module to the header module. Vertical forces generated within the system are transferred from the rails through the pit channel module and into a foundation so that at least substantially no vertical load forces are imparted on the building structure which the system serves.

Abstract: An elevator cab lighting assembly comprising a refractive sheet mounted on the interior of the elevator cab. A light source is mounted at and conducts light into an outer edge of the refractive sheet. The light received at the outer edge of the travels along the refractive sheet and passes out of the planar surface and inner edge of the sheet exposed within the interior of the cab. The refractive sheet may be randomly sanded or sandblasted to provide diffuse light. The sheet may be etched or routed in standard or custom designs to provide accent highlighting. The lighting assembly is housed within a transom assembly that may be accessed from the exterior of the cab.

Abstract: A brake apparatus engages and locks a piston of a hydraulic elevator drive carrying an elevator car or a cable pulley. The brake apparatus includes a pair of opposed pivotally mounted brake arms each having a curved support carrying a brake lining for engaging the exterior surface of the piston. Each brake lining is formed by bending a planar body at a plurality of the vertical grooves formed in a contact surface to define planar sections. The lining is attached to the support with the sections spaced from the curved support surface. As the brake linings are brought into engagement with the piston surface, the compression forces are evenly distributed by the planar sections functioning as springs.

Abstract: An arrestor for any hydraulic ram or other cylinder but primarily for an emergency brake for lifting elevators. The present invention is a jack arrestor utilizing two lever acting brake arms lined with an accretable metal as the friction material. When actuated, the brake arms contact the ram circumferentially to slow and stop the falling ram. The lining material is machined inside the brake arms to a diameter slightly less than the diameter of the ram and when actuated, the accretable material on the brake arms contacts the ram with sufficient frictional force to stop the downward motion of the ram. The safety brake may be actuated by loss of hydraulic pressure, by an electronic signal from a hydraulic pressure detector, by down overspeed or by an uncontrolled down motion detector. In the case of the hydraulic pressure detector, reapplication of normal pressure in the hydraulic cylinder will automatically reset the brake.

Abstract: An arrestor for any hydraulic ram or other cylinder but primarily for an emergency brake for lifting elevators. The present invention is a jack arrestor utilizing two lever acting brake arms lined with an accretable metal as the friction material. When actuated, the brake arms contact the ram circumferentially to slow and stop the falling ram. The lining material is machined inside the brake arms to a diameter slightly less than the diameter of the ram and when actuated, the accretable material on the brake arms contacts the ram with sufficient frictional force to stop the downward motion of the ram. The safety brake may be actuated by loss of hydraulic pressure, by an electronic signal from a hydraulic pressure detector, by down overspeed or by an uncontrolled down motion detector. In the case of the hydraulic pressure detector, reapplication of normal pressure in the hydraulic cylinder will automatically reset the brake.

Abstract: This invention includes a brake system for a hydraulic ram or another cylinder, that can be employed as an emergency brake for a lifting elevator. When actuated, the brake arms contact the ram circumferentially to slow and stop the falling ram. The brake arms are preferably lined with an able material that frictionally engages the ram to stop the downward motion of the ram. The brake system may be actuated by loss of hydraulic pressure, by an electronic signal from a hydraulic pressure detector, by down overspeed sensor or by an uncontrolled down motion detector. According to another aspect of the present invention, a controller, which is preferably a programmed control system, compares the actual motion of the elevator as sensed by a detector to a desired motion. Under certain conditions, if the actual motion differs from the desired motion, the controller actuates the brake.

Abstract: A safety brake device (1) for hydraulic elevators acts by arresting the axial movement of the elevator ram (3) with respect to the main hydraulic cylinder (5) of the elevator. The safety brake (1) utilizes two lever acting brake arms (27) lined with an accretable metal (31), for example annealed copper, as the friction material. When actuated, the brake arms (27) contact the ram (3) circumferentially to slow and stop the falling ram. The lining material (31) is machined inside the brake arms (27) to a diameter slightly less than the diameter of the ram (3) and when actuated, the accretable material (31) on the brake arms (27) contacts the ram (3) with sufficient frictional force to stop the downward motion of the ram (3). The safety brake (1) may be actuated by loss of hydraulic pressure, by an electronic signal from a hydraulic pressure detector, by down overspeed or by an uncontrolled down motion detector.