Abstract:
The present invention involves a skate that can be converted from an in-line wheel configuration in which all of the skate wheels are coplanar to a parallel or quad wheel configuration, and vice versa. The skate includes a foot or shoe enclosure (4), a wheel chassis (10), a wheel support (52), at least two wheels (50), and mechanisms which position the wheel chassis at a center point and allows the wheel chassis to pivot the wheels from an in-line to a parallel configuration. The positioning mechanisms include tie rods (18), yokes (84, 86), gear sets (106), and externally mounted rods or panels (116). A post (30) on the bottom of the enclosure may include a threaded portion which is engaged by a nut (36) to rotationally secure the position of the wheel chassis, or the post may include a portion (94) of enlarged diameter supporting a spring (104) which biases the wheel chassis into the post. A brake (122) is provided to allow the user to slow or stop the skate in a controlled manner.
Abstract:
The present invention involves a skate that can be converted from an in-line wheel configuration in which all of the skate wheels are coplanar to a parallel or quad wheel configuration, and vice versa. The skate includes a foot or shoe enclosure, a wheel chassis, a wheel support, at least two wheels, and mechanisms which position the wheel chassis at a center point and allows the wheel chassis to pivot the wheels from an in-line to a parallel configuration. The positioning mechanisms include tie rods, yokes, gear sets, and externally mounted rods or panels. A post on the bottom of the enclosure may include a threaded portion which is engaged by a nut to rotationally secure the position of the wheel chassis, or the post may include a portion of enlarged diameter supporting a spring which biases the wheel chassis into the post. A brake is provided to allow the user to slow or stop the skate in a controlled manner. An alternative embodiment involves a pair of yoke-chassis which both position and align the wheels.
Abstract:
An electric motor of the type used to power submersible pumps is disclosed. An interior cavity of the motor is filled with one or more liquids for cooling and/or lubricating the motor interior. A system for circulating the fill liquid within the motor cavity comprising a rotatable cup spacer attached to the motor shaft and liquid passageways is described.
Abstract:
The present invention involves a skate that can be converted from an in-line wheel configuration in which all of the skate wheels are coplanar to a parallel or quad wheel configuration, and vice versa. The skate includes a foot or shoe enclosure, a wheel chassis, a wheel support, at least two wheels, and a tie rod which anchors the wheel chassis at a center point and allows the wheel chassis to pivot the wheels from an in-line to a parallel configuration. The foot enclosure includes posts which support and secure the wheel chassis, with a nut threadably engaging the post to rotatably secure the wheel chassis relative to the foot enclosure. The tie rods have a predetermined length which maintains the angular position of the wheels relative to the foot enclosure regardless of the angular position of the wheel chassis.
Abstract:
Apparatus comprising a flow carrier connectable in a liquid flow system including an electric motor-pump unit and a conduit for conveying a pumped liquid to a liquid utilization apparatus. The flow carrier is connectable in the conduit and includes an opening which exposes the liquid flowing through the carrier. A heat sink or cold plate is located on the carrier over the opening, the heat sink covering the opening and having a wet side exposed to the liquid. The heat sink further includes a dry side, and heat generating control components are secured to the dry side. A sensor is also mounted on the heat sink and responds to a characteristic, such as the pressure, of the liquid. The sensor and the control components are operable to control the motor-pump unit. In a domestic water supply system, for example, the liquid utilization apparatus includes the plumbing in a building. In a gasoline supply system, the liquid utilization apparatus comprises a gasoline dispenser.
Abstract:
Apparatus comprising a flow carrier connectable in a liquid flow system including an electric motor-pump unit and a conduit for conveying a pumped liquid to a liquid utilization apparatus. The flow carrier is connectable in the conduit and includes an opening which exposes the liquid flowing through the carrier. A heat sink or cold plate is located on the carrier over the opening, the heat sink covering the opening and having a wet side exposed to the liquid. The heat sink further includes a dry side, and heat generating electrical control components are secured to the dry side. A sensor is also mounted on the heat sink and responds to a characteristic, such as the pressure, of the liquid. A heat insulating layer extends around the control components and the sensor and covers the dry side of the heat sink, the layer preventing condensation. The sensor and the control components are operable to control the motor-pump unit. In a domestic water supply system, for example, the liquid utilization apparatus includes the plumbing in a building. In a gasoline supply system, the liquid utilization apparatus comprises a gasoline dispenser.
Abstract:
This disclosure relates to bearing support comprising a relatively rigid collar ring for direct support of a bearing. The relatively rigid collar ring is press fit inside a bearing supporting hub of a nonmetal (such as a composite polymer) bearing support. The design of the relatively rigid collar ring and the composite polymer bearing support is such that the stresses in the construction are satisfactory for long-term performance and reliability. The bearing supporting hub includes discrete supporting hub panels and there are axial slots between the hub panels. The supporting hub panels further include radial rib sections extending axially for strengthening the supporting hub panels and for adding support for the relatively rigid collar ring. The inside diameter of the supporting hub panels is tapered to provide stress relief clearance. Contacts between the inside of the supporting hub panels and the collar ring are limited to discrete locations. Contacts between the ribs of the supporting hub and the collar ring are also discrete by nature of the discrete radial ribs. The relatively rigid collar ring also provides a flat surface for bearing a thrust load.