33215results about "Engine seals" patented technology

Sealing assemblies and methods are disclosed for sealing a surgical instrument having an internal drive shaft subject to lateral displacement. A sealing assembly includes a rigid portion shaped to interface with an instrument shaft of the surgical instrument. A laterally oriented slot is open at a radially perimeter location and configured to receive an o-ring seal via the perimeter location. Apertures are disposed on opposing sides of the slot and open to the slot. The apertures are configured to receive the drive shaft there through and are larger than the drive shaft to accommodate lateral displacement of the drive shaft. The slot includes opposing internal sides spaced to interface with opposed axial surfaces of the o-ring seal. The seal inhibits axial transmission of an insufflated gas and / or bodily fluids while accommodating lateral displacement of the drive shaft.

A plug-type connection arrangement for a hose and a pipe, the connection arrangement comprising a sleeve having an outer wall and an inner wall, wherein the hose is insertable from an end of the sleeve and is clampable in the sleeve, wherein the sleeve has at another end thereof a first annular groove with an open resilient connecting ring which extends over more than 180° and is lockable to the sleeve and the pipe, and a sealing ring for sealing the sleeve relative to the pipe in a connected state of the pipe and the hose, the connecting ring being comprised of a plate spring ring with inwardly directed flanges at both circumferential edges thereof, wherein the flanges of one circumferential edge are engageble in the first annular groove and the flanges of the other circumferential edge are engageable behind a holding rib on the pipe, wherein the sealing ring is mounted in a second annular groove formed by the inner wall of the sleeve and the axially inner wall of the first annular groove, and wherein an end portion of the pipe is insertable into the sleeve.

A motorized surgical handpiece comprises a housing enclosing an interior containing a motor and an output shaft for being driven in rotation by the motor. The output shaft has a central longitudinal axis, a bore extending therethrough for receiving a shank of a surgical tool to be rotatably driven by the output shaft, a forward end portion extending forwardly beyond the motor and a rearward end portion extending rearwardly beyond the motor. The housing has a continuous lumen extending entirely therethrough formed in part by the output shaft bore for insertion of a bore brush through the lumen for cleaning when the surgical tool is removed from the handpiece. The handpiece has forward and rearward labyrinth seals comprising rotor components respectively attached to the forward and rearward end portions of the output shaft for rotation in corresponding stator components with there being a labyrinthine clearance between each rotor component and its stator component to receive pressurized air during use and during cleaning of the handpiece to avoid the entry of contaminants.

Exemplary embodiments of a high temperature aging cell provide a metal-to-metal fluid seal, and generally include a central tension post containing a flange having an inclined surface; and a seal ring concentrically arranged thereon, its outer circumference positioned at least partly intermediate the flange and the cell interior surface. In various embodiments, a thrust ring retains the seal ring; a thrust washer engages the thrust ring; a tension ring is attached to the tension post for biasing the thrust ring toward the flange; and an outer cap retains various components in relation to the aging cell. A pressure control device allows for pressure elevation.Exemplary embodiments of a sample aging method generally include aging a liquid sample by sealing the sample in the cell via biasing of the seal ring into sealing engagement with an interior surface of the cell. Subsequent sample treatment may involve elevating its temperature and / or pressure.

A medical connector, usable to securely couple a first tubular medical device to a second tubular medical device, includes first and second fittings cooperating with the first and second medical devices, respectively. The first and second fittings may each include a nipple, a ferrule, or some other structure that is connected to the associated medical device and that is connectable to the other fitting. The second fitting may additionally include a tubular sleeve that slides over the second medical device and the ferrule or other component of the second fitting. The two components of the second fitting are sequentially connectable to the first fitting through distinctly different motions to provide a redundant, secure connection. For example, the first fitting may include a first set of left-handed threads and a second set of right-handed threads, and the components of the second fitting may have corresponding left-handed and right-handed threads.

An apparatus and method for sealing a joint between a display and a housing of a hand held computer terminal is provided. The apparatus comprises a display frame. The display frame comprises a display front, a display back, and display sides. The front of the display frame comprises a recessed portion and a non-recessed portion. The recessed portion is configured to accept insertion of the display. The non-recessed portion defines at least a portion of the perimeter of the recessed portion. Fastening holes can be positioned outside the perimeter of the recessed portion. The display frame is configured to tighten to the housing and to compress the display between the display frame and the housing. The method comprises providing a display frame, assembling a display assembly, inserting the display assembly into the housing, and compressing the display between the display frame and the housing.