Abstract: A tele-presence system that includes a cart. The cart includes a robot face that has a robot monitor, a robot camera, a robot speaker, a robot microphone, and an overhead camera. The system also includes a remote station that is coupled to the robot face and the overhead camera. The remote station includes a station monitor, a station camera, a station speaker and a station microphone. The remote station can display video images captured by the robot camera and/or overhead camera. By way of example, the cart can be used in an operating room, wherein the overhead camera can be placed in a sterile field and the robot face can be used in a non-sterile field. The user at the remote station can conduct a teleconference through the robot face and also obtain a view of a medical procedure through the overhead camera.

Abstract: A tele-presence system that includes a cart. The cart includes a robot face that has a robot monitor, a robot camera, a robot speaker, a robot microphone, and an overhead camera. The system also includes a remote station that is coupled to the robot face and the overhead camera. The remote station includes a station monitor, a station camera, a station speaker and a station microphone. The remote station can display video images captured by the robot camera and/or overhead camera. By way of example, the cart can be used in an operating room, wherein the overhead camera can be placed in a sterile field and the robot face can be used in a non-sterile field. The user at the remote station can conduct a teleconference through the robot face and also obtain a view of a medical procedure through the overhead camera.

Abstract: A mobile apparatus for carrying and weighing a load includes a mobile frame supported by a plurality of wheels. At least one container is supported on the mobile frame for carrying a load. A plurality of sensor assemblies are coupled between the frame and the container, the sensor assemblies resistive to a weight force exerted by the container towards the frame in a generally vertical sensing direction for sensing a weight of the load, and the sensor assemblies non-resistive to error forces exerted generally orthogonally to the sensing direction for filtering out the error forces from the sensed weight. A stabilizing assembly is coupled between the container and the frame, the stabilizing assembly freely accommodating transfer of the force exerted by the container towards the frame in the sensing direction, and simultaneously inhibiting shifting of the container relative to the frame in one or more shifting directions perpendicular to the sensing direction.

Abstract: A downhole power generating apparatus comprising a low pressure chamber, a floating piston, a high pressure chamber, a first flow through path, a second flow through path, and a turbine. The low pressure chamber includes an inlet and an outlet for cycling tubing fluid. The floating piston separates the low pressure chamber into an upper and lower section. The floating piston is cyclically responsive to a cycle of tubing fluid and another cycle of tubing fluid. The first flow through path couples a fluid from the lower section of the low pressure chamber to the high pressure chamber in response to a cyclical response of the floating piston. The second flow through path couples the fluid from the high pressure chamber to the lower section in response to another cyclical response of the floating piston.

Abstract: A downhole power generating apparatus comprising a low pressure chamber, a floating piston, a high pressure chamber, a first flow through path, a second flow through path, and a turbine. The low pressure chamber includes an inlet and an outlet for cycling tubing fluid. The floating piston separates the low pressure chamber into an upper and lower section. The floating piston is cyclically responsive to a cycle of tubing fluid and another cycle of tubing fluid. The first flow through path couples a fluid from the lower section of the low pressure chamber to the high pressure chamber in response to a cyclical response of the floating piston. The second flow through path couples the fluid from the high pressure chamber to the lower section in response to another cyclical response of the floating piston.

Abstract: An annular safety valve that is positionable in a wellbore may include a housing having an opening extending through the housing to allow to allow pressure to transmit between a first annular area of the wellbore below the annular safety valve and a second annular area of the wellbore above the annular safety valve. The housing can define the opening by a seat face. A poppet may extend through the opening. A groove may at least partially surrounding the seat face for maintaining a shape of the seat face in response to an increase in pressure in the first area of the wellbore. The shape of the seat face may correspond to a surface of the poppet for preventing pressure from transmitting between the first annular area of the wellbore and the second annular area of the wellbore when the annular safety valve is in a closed position.

Abstract: A remote control station that accesses one of at least two different robots that each have at least one unique robot feature. The remote control station receives information that identifies the robot feature of the accessed robot. The remote station displays a display user interface that includes at least one field that corresponds to the robot feature of the accessed robot. The robot may have a laser pointer and/or a projector.

Abstract: A remote control station that accesses one of at least two different robots that each have at least one unique robot feature. The remote control station receives information that identifies the robot feature of the accessed robot. The remote station displays a display user interface that includes at least one field that corresponds to the robot feature of the accessed robot. The robot may have a laser pointer and/or a projector.

Abstract: A tele-presence system that includes a cart. The cart includes a robot face that has a robot monitor, a robot camera, a robot speaker, a robot microphone, and an overhead camera. The system also includes a remote station that is coupled to the robot face and the overhead camera. The remote station includes a station monitor, a station camera, a station speaker and a station microphone. The remote station can display video images captured by the robot camera and/or overhead camera. By way of example, the cart can be used in an operating room, wherein the overhead camera can be placed in a sterile field and the robot face can be used in a non-sterile field. The user at the remote station can conduct a teleconference through the robot face and also obtain a view of a medical procedure through the overhead camera.

Abstract: A mobile apparatus for carrying and weighing a load includes a mobile frame supported by a plurality of wheels. At least one container is supported on the mobile frame for carrying a load. A plurality of sensor assemblies are coupled between the frame and the container, the sensor assemblies resistive to a weight force exerted by the container towards the frame in a generally vertical sensing direction for sensing a weight of the load, and the sensor assemblies non-resistive to error forces exerted generally orthogonally to the sensing direction for filtering out the error forces from the sensed weight. A stabilizing assembly is coupled between the container and the frame, the stabilizing assembly freely accommodating transfer of the force exerted by the container towards the frame in the sensing direction, and simultaneously inhibiting shifting of the container relative to the frame in one or more shifting directions perpendicular to the sensing direction.

Abstract: A tele-presence system that includes a cart. The cart includes a robot face that has a robot monitor, a robot camera, a robot speaker, a robot microphone, and an overhead camera. The system also includes a remote station that is coupled to the robot face and the overhead camera. The remote station includes a station monitor, a station camera, a station speaker and a station microphone. The remote station can display video images captured by the robot camera and/or overhead camera. By way of example, the cart can be used in an operating room, wherein the overhead camera can be placed in a sterile field and the robot face can be used in a non-sterile field. The user at the remote station can conduct a teleconference through the robot face and also obtain a view of a medical procedure through the overhead camera.

Abstract: Wound dressing compositions comprising: carboxymethyl cellulose, oxidized regenerated cellulose (ORC), and silver. The dressings optionally further comprise non-gelling cellulose fibers. The compositions may comprise a complex of the ORC and silver. Wound dressings are also provided, comprising an absorbent layer comprising the wound dressing compositions.

Abstract: A ball valve including a valve body having inlet and outlet flow passageways connected by a valve chamber; a ball valve member mounted in the valve chamber for selective rotation between valve open and valve closed positions to control flow through the valve, the ball valve member including at least one pivot pin and a mount for a control arm; and at least one control arm including a slot configured to accept a control arm bushing, the pivot pin, and combinations thereof, wherein the control arm is mounted to the ball valve member, and wherein upon application of an axial load on the control arm to the open or close the ball valve, the axial load on the control arm is transferred to at least one of a control arm bushing, the pivot pin on the ball valve member, and combinations thereof.

Abstract: An annular safety valve that is positionable in a wellbore may include a housing having an opening extending through the housing to allow to allow pressure to transmit between a first annular area of the wellbore below the annular safety valve and a second annular area of the wellbore above the annular safety valve. The housing can define the opening by a seat face. A poppet may extend through the opening. A groove may at least partially surrounding the seat face for maintaining a shape of the seat face in response to an increase in pressure in the first area of the wellbore. The shape of the seat face may correspond to a surface of the poppet for preventing pressure from transmitting between the first annular area of the wellbore and the second annular area of the wellbore when the annular safety valve is in a closed position.

Abstract: A downhole ball valve includes a housing that includes a tubular member; a ball seat positioned in the tubular member, the ball seat including a sealing surface; and a ball that includes a first hemispherical portion, a second hemispherical portion, and a bore that extends through the ball between the first and second hemispherical portions. The ball is adjustable between a closed position with the first hemispherical portion sealingly engaged with the sealing surface of the ball seat to close the bore to fluid communication with the tubular member, and an open position with the bore at least partially in fluid communication with the tubular member. The first hemispherical portion includes a first material, and at least a portion of the second hemispherical portion that extends from a surface of the ball towards the bore of the ball includes a second material different than the first material.

Abstract: A remote control station that accesses one of at least two different robots that each have at least one unique robot feature. The remote control station receives information that identifies the robot feature of the accessed robot. The remote station displays a display user interface that includes at least one field that corresponds to the robot feature of the accessed robot. The robot may have a laser pointer and/or a projector.

Abstract: A downhole tool includes a tool body comprising an inner housing and an outer housing to form an annulus between the inner housing and the outer housing and a primary piston positioned within the annulus to form a primary cavity within the annulus. The downhole tool further includes a backup piston positioned within the annulus to form a second cavity within the annulus and a pressure operating device in fluid communication with the annulus.

Abstract: A ball valve is disclosed that includes a valve housing, a first seat surface having a first inner diameter and a first outer diameter, and a second seat surface having a second inner diameter and a second outer diameter. The second inner diameter is larger than the first outer diameter, and may be separated by a channel. A resilient seat surface may be disposed within the channel. The valve further includes a ball that is rotatably movable within the housing and that contacts at least one of the first seat surface and the second seat surface to form a seal.

Abstract: A remote control station that accesses one of at least two different robots that each have at least one unique robot feature. The remote control station receives information that identifies the robot feature of the accessed robot. The remote station displays a display user interface that includes at least one field that corresponds to the robot feature of the accessed robot. The robot may have a laser pointer and/or a projector.

Abstract: A tele-presence system that includes a cart. The cart includes a robot face that has a robot monitor, a robot camera, a robot speaker, a robot microphone, and an overhead camera. The system also includes a remote station that is coupled to the robot face and the overhead camera. The remote station includes a station monitor, a station camera, a station speaker and a station microphone. The remote station can display video images captured by the robot camera and/or overhead camera. By way of example, the cart can be used in an operating room, wherein the overhead camera can be placed in a sterile field and the robot face can be used in a non-sterile field. The user at the remote station can conduct a teleconference through the robot face and also obtain a view of a medical procedure through the overhead camera.