Abstract: A seal for the axial sides of a rolling bearing and being disposed between the inner and outer rings of the bearing. The seal including an axially inward thrust washer and an axially outward sealing washer opposite the thrust washer. The thrust washer is generally C-shaped with a radially inwardly and axially outwardly sloping thrust surface. The sealing washer includes a radial sealing lip which is sloped radially inwardly to seal on the thrust surface of the thrust washer and may include an axial lip which seals against the radial leg of the thrust washer and may include a radially outwardly projecting sealing lip which contacts the outer ring and/or the portion of the thrust washer at the outer ring.

Abstract: A gasket assembly for interposition between a pair of axially spaced-apart interface surfaces of an internal combustion engine. The assembly includes a metal retainer member having generally planar first and second surfaces with one or more apertures formed therethrough. Each of the apertures are configured for generally coaxially registration with a corresponding fluid passageway formed through the interface surfaces of the engine as having a periphery defining a margin of an extent greater than the inner diameter of the corresponding fluid passageway. One or more generally annular seal members are each received within a corresponding one of the apertures as including a first and second radial surfaces.

Abstract: A secondary containment system is provided for use in preventing leakage to or from an underground storage tank at a joint where a riser line connects to the tank. The system includes a secondary riser tube for surrounding the riser line and a sealing ring for providing a seal between the outer wall of the storage tank and the secondary riser tube. The sealing ring has a sleeve for sealing against the outer wall of the secondary sealing tube and a flexible bell-shaped skirt for sealing against the outer wall of the storage tank. A support bracket clamps to the outer wall of the riser line and includes three arms extending radially outward. The three arms engage the secondary riser tube to hold it into engagement with the sealing ring and thereby hold the sealing ring in sealing engagement with the tank wall by maintaining a downward force on the secondary riser tube.

Abstract: A connector or coupling device for pipes of different materials and different diameters. The connector is formed by a single integral sleeve of roughly barrel shape. The two open end portions of the sleeve are defined by a narrow slightly outwardly flaring flange. The connector is further provided by at least one angular U-shaped ring having two ears adapted to receive a screw and bolt for tightening the ring.

Abstract: An elastomer seal member for use in a pump having adjustable side liners is structured with a bellows-type flange which provides and maintains a tight seal between adjoining casing elements of the pump as the side liners are axially adjusted to compensate for wear and abrasion of the side liners. The elastomer seal member provides a continuous seal between adjoining casing elements as the side liners are axially adjusted, thereby extending the service life of the side liners and extending the number of hours the pump may be operated before a replacement of the side liners and seal is required.

Abstract: A dual cartridge seal includes first and second rotary seals each formed by a stationary sealing ring and a rotatable sealing ring and a sleeve, fitted to be co-rotatable with a rotatable shaft to be sealed. The rotatable sealing rings are mounted on the sleeve. The stationary sealing rings are mounted so as to be radially spaced from the sleeve so that the stationary sealing rings and a portion of the sleeve define a barrier fluid chamber. The barrier fluid chamber has an inner wall defined by the portion of the sleeve, and an outer wall defined by the inner surface of the stationary sealing rings or ring holders. In order to promote barrier fluid circulation within the barrier fluid chamber, and thereby to more effectively remove heat from the regions of the rotary seals, the inner wall and the outer radial wall are oriented so that at least one of those walls is non-parallel to the rotational axis of the shaft.

Abstract: A double containment coupling is used to form a mechanical joint between double containment pipes. The coupling has an inner primary member within an outer secondary member. Two seals, one on top of the other, are fitted on top of the primary pipe which extends beyond the secondary pipe of the double containment pipe. The coupling inner member is fitted over the primary pipe and seals. An inner locking nut is threaded on the coupling inner member outer surface pushing a thrust ring onto one of the seals, sliding the seal over the other seal compressing and energizing both seals so as to create a seal between the primary pipe and the coupling inner member. A first end of a closure member is threaded onto the outer surface of the coupling outer member. An outer locking nut threaded on a second end of the closure member compresses a seal between the closure member and the secondary pipe creating a seal between the closure member and the secondary pipe outer surface.

Abstract: A removable battery tray for an electric mower is disclosed. The battery tray fits over the frame of the mower during operation, and can be removed by a hoist or other method in order for the electric mower to continue to operate with another charged set of batteries. The battery tray also has a central power plug that is used for charging and is the only electrical disconnect required when changing the battery tray.

Abstract: A fuel backflow-preventing device for use in a vehicle, which includes a fuel tank containing an inlet conduit, a floating device slidably disposed within the inlet conduit and operative to seal the inlet conduit, and spring means operatively associated with the floater device and biased to effect the sealing of the inlet conduit.

Abstract: A connector assembly (20) for connecting expandable slotted tubing (EST) (10) comprises tubular first and second parts (22, 24) for mounting on the ends of respective lengths of slotted tubing. The parts (22, 24) are themselves slotted (26). The free end of the first part defines a male portion (28) and the free end of the second part defining a female portion (30), the free ends of the parts being adapted to engage with one another and to permit expansion of the coupled parts in a corresponding manner to the tubing (10).

Abstract: A rapid coupling, having a socket and a nipple which can be inserted into the socket. A locking device for the coupled position between the socket and nipple includes a radially outwardly protruding bead on the nipple. A cage mounted in the socket includes widenable holding fingers for gripping behind the bead on the nipple. The cage has an indicating device which includes radially outwardly displaceable, axially extending arms. The ends of those arms have a nose that can be seen and/or felt from the outside of the socket in the coupled position. A connection at the other end of the socket to a pipeline.

Abstract: A dual purpose, multi-layered steel intake/exhaust manifold gasket is constructed from a rubber coated embossed single-layer intake manifold gasket attached to an uncoated embossed double-layer exhaust manifold gasket. The gaskets overlap at several discontinuous locations along a common edge by sandwiching the single layer intake manifold gasket between the two layers of the exhaust manifold gasket. Holes are provided in the rubber coated single layer at some of the overlapping locations to allow the two layers of the exhaust manifold gaskets to contact and be fastened together. An air gap is left between the two gaskets except for the areas of overlap to control heat transfer between the gaskets.

Abstract: A system for picking cabbages includes at least one picking channel having structure for centering and straightening the cabbage plants. The structure is defined by two rotary disks that rotate in the processing direction relative to a flared intake of guides for supporting plants. The picking channel also includes structure for sectioning cabbage leaves and stems, which structure consists of one disk that completely cuts the path of each plant, and can be adjusted at a height relative to the ground. The overall unit is mounted on a frame that is equipped with structure for maintaining ground clearance.

Abstract: A valve having a purging apparatus includes a valve body having a defined passage that is aligned along an axis of the valve body. A conduit having an axis passing downwardly through the valve body and in communication with the passage forms an angle with the axis of the valve body. A slit is formed in the valve body about the axis of the conduit to establish a housing integral with the valve body. The slit surrounds and isolates the housing and a portion of the conduit from the valve body to a given depth and includes a depth and a width such that the housing is isolated from stresses induced in the valve body. A tubular element is joined to the housing in axial alignment with the conduit and is inserted to a depth that is less than the given depth of the slit. The valve is purged through the tubular element via the conduit.

Abstract: A universal fitting for connecting together non-porous irrigation tubing having different diameters. The fitting is closable at one or more openings with caps so that the one fitting can be used as an elbow, coupling, tee, or end cap thus avoiding the stocking or purchase of many different kinds of fitting for various diameters of irrigation hose.

Abstract: A rotating seal ring component kit is provided which comprises a seal ring having a split dividing the seal ring into at least two sections configured to fit around a shaft, a clamp ring having a split dividing the clamp ring into at least two sections configured to circumferentially surround the seal ring, each clamp ring section having tabs which cooperate with corresponding tabs on another clamp ring section to permit assembly of the clamp ring sections around the seal ring; and a housing having a split dividing the housing into at least two sections configured to fit around the shaft, the housing including first and second notches configured to receive the tabs so as to prevent rotation of the clamp ring relative to the housing. A snap ring may be utilized to provide preliminary assembly of the clamp ring sections.

Abstract: In a device and a method, a position-accurate detection of product mass received by a baler is possible, by an electronic control and regulating device in association with determination of a load of a working element of the baler.

Abstract: An ultra high torque double shoulder tool joint (see FIG. 1) for maximizing the torsional strength of a threaded connection by correlating a transverse cross-sectional counter-bore area of the box (12) and pin (10). The pin 10 includes a base section 74 and a nose section 24. The nose section 24 defines a cross-sectional nose area 28. The pin external threads 22 include a taper no greater than 1/12. The box 12 includes a cross-sectional counterbore area 46 and a cross-sectional box area 52. The overall strength of the tool joint is dependent upon the torsional strength of the threaded connection, the cross-sectional nose area (28) and the cross-sectional counter-bore area (46).

Abstract: A battery driven electric lawn mower includes a DC motor, and mowing blade on an output shaft of the motor. A control unit is connected between the motor and the battery for increasing and decreasing the electric current supplied to the motor in accordance with an increase and decrease in load, to thereby maintain the number of revolutions per second of the motor substantially constant at or near a minimum value permitting a mowing blade to function normally under a heavy load. The control unit comprises an electric current detecting device for detecting a load current flowing in the motor, and a pulse generating device for outputting a pulse signal having a pulse width corresponding to an electric current value detected by the electric current detecting device. A pulse-responsive switch device for adjusting the electric current supplied to the motor in response to a pulse signal output from the pulse generating device. The pulse responsive switch device is connected in series with the motor.

Abstract: In a positive coupling structure for interconnecting a first element having a T-shaped projection with a neck and a head portion which extends from the neck portion in opposite directions and a second element which has a cut-out shaped corresponding to the T-shaped projection of the first element for snugly receiving the T-shaped projection, the opposite ends of the head portion are widened to form recesses in which the adjacent areas of the second element are firmly engaged.