Abstract: An improved screw pump such as, for example, a twin screw pump, includes a casing including an internal chamber, and first and second rotors rotatably positioned within the chamber of the casing. The first and second rotors have an intermeshing threaded-shape profiling. A plurality of bearing seal assemblies are provided at each end of the first and second rotors. Each bearing seal assembly includes a bearing positioned about an end portion of a rotor to facilitate rotation of the rotor, and a seal positioned about an end portion of a rotor to seal passage of the rotor through the casing. The bearing is coupled to the seal so that the seal may be secured to the casing via the coupling of the bearing to the casing.

Abstract: An improved screw pump such as, for example, a twin screw pump, includes a casing including an internal chamber, and first and second rotors rotatably positioned within the chamber of the casing. The first and second rotors have an intermeshing threaded-shape profiling. A plurality of bearing seal assemblies are provided at each end of the first and second rotors. Each bearing seal assembly includes a bearing positioned about an end portion of a rotor to facilitate rotation of the rotor, and a seal positioned about an end portion of a rotor to seal passage of the rotor through the casing. The bearing is coupled to the seal so that the seal may be secured to the casing via the coupling of the bearing to the casing.

Abstract: The present disclosure relates to systems, devices, and methods for providing foldable, insertable robotic sensory and manipulation platforms for single port surgery. The device is referred to herein as an Insertable Robotic Effector Platform (IREP). The IREP provides a self-deployable insertable device that provides stereo visual feedback upon insertion, implements a backbone structure having a primary backbone and four secondary backbones for each of the robotic arms, and implements a radial expansion mechanism that can separate the robotic arms. All of these elements together provide an anthropomorphic endoscopic device.

Abstract: The present disclosure relates to systems, devices, and methods for providing foldable, insertable robotic sensory and manipulation platforms for single port surgery. The device is referred to herein as an Insertable Robotic Effector Platform (IREP). The IREP provides a self-deployable insertable device that provides stereo visual feedback upon insertion, implements a backbone structure having a primary backbone and four secondary backbones for each of the robotic arms, and implements a radial expansion mechanism that can separate the robotic arms. All of these elements together provide an anthropomorphic endoscopic device.

Abstract: The present invention is directed to devices and methods for performing minimal access surgery; in various embodiments, to a surgical device comprising an insertable instrument attached to a trocar, as well as methods of performing a surgical procedure comprising inserting in insertable instrument/trocar combination into the body of a patient through an incision.

Abstract: The present invention provides a system and single or multi-functional element device that can be inserted and temporarily placed or implanted into a structure having a lumen or hollow space, such as a subject's abdominal cavity to provide therewith access to the site of interest in connection with minimally invasive surgical procedures. The insertable device may be configured such that the functional elements have various degrees of freedom of movement with respect to orienting the functional elements or elements to provide access to the site from multiple and different orientations/perspectives as the procedure dictates, e.g., to provide multiple selectable views of the site, and may provide a stereoscopic view of the site of interest.

Abstract: The present invention provides a system and single or multi-functional element device that can be inserted and temporarily placed or implanted into a structure having a lumen or hollow space, such as a subject's abdominal cavity to provide therewith access to the site of interest in connection with minimally invasive surgical procedures. The insertable device may be configured such that the functional elements have various degrees of freedom of movement with respect to orienting the functional elements or elements to provide access to the site from multiple and different orientations/perspectives as the procedure dictates, e.g., to provide multiple selectable views of the site, and may provide a stereoscopic view of the site of interest.

Abstract: A speed control system and method of assembling such a system for a power equipment vehicle such as a lawn mower. The speed control system comprises a speed control bail that pivots with respect to the vehicle handle bar, a pivot rod, and a cover. In order to increase the speed of the vehicle the operator pushes the speed control bail in the forward direction and in order to decrease the speed of the vehicle the operator pulls the bail in the backward direction. Assembly of the system on to the vehicle handle bar does not require the use of hand held or power tools thereby reducing manufacturing time and ultimately reducing production costs.

Abstract: A string trimmer having the entrance to the air filter generally facing away from the forward direction of travel. Further, the filter intake is generally planar and is angled downwardly away from the plane normal to the direction of travel. The cross-sectional area of the filter intake is sized so as to reduce the velocity of air flowing through the filter intake.

Abstract: The present invention provides a system and single or multi-functional element device that can be inserted and temporarily placed or implanted into a structure having a lumen or hollow space, such as a subject's abdominal cavity to provide therewith access to the site of interest in connection with minimally invasive surgical procedures. The insertable device may be configured such that the functional elements have various degrees of freedom of movement with respect to orienting the functional elements or elements to provide access to the site from multiple and different orientations/perspectives as the procedure dictates, e.g., to provide multiple selectable views of the site, and may provide a stereoscopic view of the site of interest.

Abstract: A speed control system and method of assembling such a system for a power equipment vehicle such as a lawn mower. The speed control system comprises a speed control bail that pivots with respect to the vehicle handle bar, a pivot rod, and a cover. In order to increase the speed of the vehicle the operator pushes the speed control bail in the forward direction and in order to decrease the speed of the vehicle the operator pulls the bail in the backward direction. Assembly of the system on to the vehicle handle bar does not require the use of hand held or power tools thereby reducing manufacturing time and ultimately reducing production costs.

Abstract: A string trimmer having the entrance to the air filter generally facing away from the forward direction of travel. Further, the filter intake is generally planar and is angled downwardly away from the plane normal to the direction of travel. The cross-sectional area of the filter intake is sized so as to reduce the velocity of air flowing through the filter intake.

Abstract: A horn control system for model vehicles on a track includes a sound generation unit mounted on the model vehicle which generates different sounds based on the combination of two inputs, the speed of the vehicle and an operator initiated horn signal. The type of sound is also preferably varied based on how long the horn button is depressed.

Abstract: A control circuit which will momentarily apply a pulse of power to the E-Unit solenoid in response to the momentary interruption of power by the transformer or another control signal. The E-Unit rest state is thus with no power applied, eliminating noise and saving power. A seek-to-forward cycling capability is also provided. The overall system has a remote transmitter and a base unit coupled to the train tracks with a receiver. The base unit controls track switching and individual trains through FSK signals transmitted over the track. The base unit also controls a triac switch between the transformer and the track to allow remote control of track power and impose DC offsets on the track power signal.