Abstract: An earth boring bit has a bit body with a depending bearing pin, a cone rotatably mounted on the bearing pin, a seal gland between the cone and the bearing pin, and a seal assembly located in the seal gland. The seal assembly includes an annular metallic spring encircling the bearing pin. The spring has a geometric center line that extends in a circle around the bearing pin. The spring is elastically deformable in radial directions relative to the center line. An elastomeric layer is located on an exterior side of the spring and is biased by the spring against a surface of the seal gland.

Abstract: An earth boring bit has a bit body with a depending bearing pin, a eons rotatably mounted on the hearing pin, a seal gland between the cone and the bearing pin, and a seal assembly located in the seal gland. The seal assembly includes an annular metallic spring encircling the bearing pin. The spring has a geometric center line that extends in a circle around the bearing pin. The spring is elastically deform able in radial directions relative to the center line. An elastomeric layer is located on an exterior side of the spring and is biased by the spring against a surface of the seal gland.

Abstract: A cushion set for use with a seat having a seat back with an upper portion and a lower portion includes an upper back cushion and a lower back cushion each having a forward surface and an opposing aft surface, each forward surface including at least one back cushion forward attachment device, and each aft surface including at least one back cushion aft attachment device; and an inflatable lumbar support having an aft surface that includes at least one lumbar support attachment device. The aft surface of the upper back cushion is attachable to the upper portion of the seat back, via the at least one back cushion aft attachment device of the upper back cushion. The aft surface of the lower back cushion is attachable to the lower portion of the seat back, via the at least one back cushion aft attachment device of the lower back cushion.

Abstract: An earth boring bit has a bit body with a depending bearing pin, a cone rotatably mounted on the bearing pin, a seal gland between the cone and the bearing pin, and a seal assembly located in the seal gland. The seal assembly includes an annular metallic spring encircling the bearing pin. The spring has a geometric center line that extends in a circle around the bearing pin. The spring is elastically deformable in radial directions relative to the center line. An elastomeric layer is located on an exterior side of the spring and is biased by the spring against a surface of the seal gland.

Abstract: A cushion set for use with a seat having a seat back with an upper portion and a lower portion includes an upper back cushion and a lower back cushion each having a forward surface and an opposing aft surface, each forward surface including at least one back cushion forward attachment device, and each aft surface including at least one back cushion aft attachment device; and an inflatable lumbar support having an aft surface that includes at least one lumbar support attachment device. The aft surface of the upper back cushion is attachable to the upper portion of the seat back, via the at least one back cushion aft attachment device of the upper back cushion. The aft surface of the lower back cushion is attachable to the lower portion of the seat back, via the at least one back cushion aft attachment device of the lower back cushion.

Abstract: An exemplary system and method for analyzing rolling stock wheels helps allow a wheel to be analyzed at speed, reducing any need for manual inspections or other related delays. An exemplary system may include one or more strobe lights and one or more high-speed cameras to capture images of the rolling stock wheel(s) at speed. The images may include one or more markers to assist in analyzing various parameters of the rolling stock wheel. The exemplary system may include one or more backface illumination plates to assist in illuminating the rolling stock wheel(s) and/or the one or more marker(s).

Abstract: An earth boring bit has a bit body with a depending bearing pin, a cone rotatably mounted on the bearing pin, a seal gland between the cone and the bearing pin, and a seal assembly located in the seal gland. The seal assembly includes an annular metallic spring encircling the bearing pin. The spring has a geometric center line that extends in a circle around the bearing pin. The spring is elastically deformable in radial directions relative to the center line. An elastomeric layer is located on an exterior side of the spring and is biased by the spring against a surface of the seal gland.

Abstract: A composite seal gland insert for a roller cone rock bit is a polymer composite sleeve containing one or more constituents that function to significantly lower the wear of the elastomeric seal ring. A fluid lubricant film also may be used between the elastomer seal and the gland. The outer surface of the insert is profiled to provide a sealing surface against which the elastomer seal runs. The insert is installed over the bearing pin and has a surface that engages the last machined surface of the leg. A static seal, which may comprise an additional elastomeric seal, may be used beneath the gland insert to provide a pressure seal between the insert and the pin. An adhesive also may be used as the pressure seal and also to retain the gland insert in the desired position. In addition, a mechanical anti-rotation device may be used to prevent rotation of the gland insert.

Abstract: An exemplary system and method for analyzing rolling stock wheels helps allow a wheel to be analyzed at speed, reducing any need for manual inspections or other related delays. An exemplary system may include one or more strobe lights and one or more high-speed cameras to capture images of the rolling stock wheel(s) at speed. The images may include one or more markers to assist in analyzing various parameters of the rolling stock wheel. The exemplary system may include one or more backface illumination plates to assist in illuminating the rolling stock wheel(s) and/or the one or more marker(s).

Abstract: A micro-browser has pair of rods each rod entering a corresponding bore in a sleeve that retains them, and that may itself be carried by a grip shaped to be rotated between a thumb and a finger. The edge of a small circuit board is soldered at the distal end of the rod. One of the rods is allowed to rotate within its bore in the sleeve, while the other is held stationary by a notch in the sleeve. The rotatable rod has a captive spring that resists the force of probe contact. Each board carries a coupling network connected to a short sharp probe tip bent downward away from the plane of its board, allowing the distance between the probe tips to be a function of the amount of rotation. The other end of each coupling network is coupled to a short length of a respective 50? coaxial cable that passes through an axial slot in the grip to enter an amplifier pod that drives a main cable leading to test equipment. The rods may be held within the bores by friction created by slight bends in the rods.

Abstract: A method and apparatus for displaying help screen information for measurement devices. The invention includes a measurement device for generating measurement information, and a display coupled with the measurement device for displaying the measurement information, A control panel has a plurality of keys each coupled with the measurement device for controlling a respective operation of the measurement device. A timer is coupled with the control panel for sensing duration of key activation during which a user activates any of the keys of the control panel. A controller is coupled with the display for displaying help screen information in context of the respective operation of the measurement device in response to each key activation, when the duration of key activation is greater than a predetermined amount of time.

Abstract: The instrument 10 for gynecological laparoscopy includes a cervical funnel 12 and an intra-uterine cannula 14 disposed axially within the funnel 12. Funnel 12 includes a hollow tube 16 having a proximal end 18 adapted to be inserted into the vagina of a patient. A hollow cone-shaped member 20 is provided at the proximal end 18. The cannula 14 has an outer sheath 58 provided at one end with a threaded cone 60 that threadingly engages the cervix to seal the uterus. An inner manipulation shaft 62 passes through the sheath 58 and cone 60 to allow manipulation of the uterus. The instrument 10 is supported by a support 92 that would be typically attached to an operating table or bed 96. Support 92 allows the position of the instrument 10 to be varied at will by the surgeon thus alleviating the need of the surgeon or a pelvic assistant to physically support the instrument 10. Seal 192 in the shape of a conical frustum is placed over the cone-shaped member 20 prior to insertion into the vagina.

Abstract: A method and apparatus for displaying help screen information for measurement devices. The invention includes a measurement device for generating measurement information, and a display coupled with the measurement device for displaying the measurement information. A control panel has a plurality of keys each coupled with the measurement device for controlling a respective operation of the measurement device.