Abstract: A reciprocating fluid pump includes a pump body, a subject fluid chamber, a first plunger located within the subject fluid chamber of the pump body and having a first head portion and a first bellows, the first plunger configured to expand and compress in a reciprocating action to pump the subject fluid through the subject fluid chamber within the pump body, wherein the first head portion and the first bellows have a first cross-sectional dimension, and a second plunger located within the subject fluid chamber of the pump body and having a second head portion and a second bellows, the second plunger configured to expand and compress in a reciprocating action to pump the subject fluid through the subject fluid chamber within the pump body, wherein the second head portion and the second bellows have a second cross-sectional dimension that is smaller than the first cross-sectional dimension.

Abstract: Reciprocating fluid pumps include a pump body including a cavity therein, a plunger located at least partially within the cavity, and a shift canister assembly disposed within the cavity. The shift canister assembly includes a sealing surface for forming a seal against the pump body. An area covered by the seal between the sealing surface and the pump body is less than about 75% of an outer cross-sectional area of the shift canister assembly. The shift canister assembly may include a shift canister and a shift canister cap attached thereto, the shift canister cap comprising the sealing surface. Reciprocating fluid pumps include a shift canister, a shift piston at least partially disposed within the shift canister, and a shift canister cap attached to the shift canister on a longitudinal end of the shift canister opposite the shift piston. Methods include forming such reciprocating pumps.

Abstract: A pneumatic reciprocating fluid pump for pumping a fluid includes at least one check valve assembly that includes a check valve body insert, a ball within the valve body insert, and an annular sealing ring member disposed within a seat ring receptacle. The sealing ring member has dimensions smaller than corresponding dimensions of the seat ring receptacle, such that the sealing ring member is capable of moving within the seat ring receptacle. The ball is configured to slide back and forth between a first position and a second position within the check valve body insert responsive to forward and reverse flow of fluid therethrough. In one position, the ball is seated against the sealing ring member and prevents reverse flow of the fluid through the check valve assembly, and forward flow of the fluid through the check valve assembly is enabled when the ball is in another position.

Abstract: A fluid pump includes a pump body enclosing a first cavity and a second cavity, a first flexible member disposed within the first cavity, a second flexible member disposed within the second cavity, and a drive shaft extending between and attached to each of the first flexible member and the second flexible member. The drive shaft is configured to slide back and forth within the pump body. The pump also includes a first shift valve and a second shift valve disposed between the first flexible member and the second flexible member, operatively coupled to deliver a drive fluid to drive fluid chambers in alternating sequence. Some fluid pumps disclosed herein include a housing defining a modular-receiving cavity and a modular insert secured within the modular-receiving cavity by an interference fit. Methods of manufacturing and using fluid pumps are also disclosed.

Abstract: Reciprocating fluid pumps include a reinforced shaft including an inner shaft and a protective cover. The protective cover at least substantially encapsulates the inner shaft. The inner shaft exhibits a greater resistance to mechanical deformation than the protective cover, and the protective cover exhibits a greater resistance to chemical corrosion by the subject fluid than the inner shaft. Methods of forming a reciprocating fluid pump include forming a reinforced shaft and positioning the reinforced shaft within a subject fluid chamber and between two plungers.

Abstract: A dump body latching system for application to a self dumping hopper comprises a battery, a linear actuator assembly having an actuator rod configured for reciprocal motion into and out of a housing, an actuator cable having a first end attached to the actuator rod and a second end attached to a biased trip lever and a controller configured to connect the battery with the linear actuator to withdraw the actuator rod into the housing and thereby pull the actuator cable and the biased trip lever to disengage the trip lever from a locking pin.

Abstract: A system, method, service, user interface, and computer readable medium to integrate email and task management is disclosed. Users are provided with options to convert an email into a task, including one-click command options. Efficient triaging of incoming emails is supported. Integration with different email systems and third party services is also supported. Additionally, context aware operation supports features such as adapting operation for efficient use of mobile device in combination with desktop computers.

Abstract: Apparatus and method for providing a door handle adapted to receive interchangeable display inserts. The door handle includes a handle body adapted to be coupled to a door of an enclosure. A receiving space is provided within the handle body for exchangeably receiving a display insert. A protective front facing planar member is located at a front face of the door handle and a graphic display is positioned behind the protective front facing planar member. The graphic display is visible through the protective front facing planar member by a person upon approach to the door handle.

Abstract: A storage rack assembly includes a base detachably secured to the storage rack. The base has a recessed bottom portion closest to the aisle to protect the front legs from accidentally being hit by a forklift truck.

Abstract: A hoist assembly for use in a clean room includes a hoist body which is received in a hoist cover cavity of a hoist cover. A rigging is coupled to a winch of the hoist body and to an attaching member attachable to a load. The rigging is received in a rigging cavity of a rigging cover and the rigging cover is extendable in response to an extension of the rigging from the hoist body and retractable in response to a retraction of the rigging.

Abstract: A storage rack assembly includes a base detachably secured to the storage rack. The base has a recessed bottom portion closest to the aisle to protect the front legs from accidentally being hit by a forklift truck.

Abstract: A storage rack assembly includes a base detachably secured to the storage rack. The base has a recessed bottom portion closest to the aisle to protect the front legs from accidentally being hit by a forklift truck.

Abstract: The invention is an ergonomic that attaches to a plastic bag. The ergonomic handle has at least two folds formed therein forming a flat bottom surface and a pair of side walls. Lower portions of the side walls are formed into bag arms that secure the plastic handles formed in the plastic bag.

Abstract: A restraining device that is mountable on a track, has an elongated member and an attachment mechanism connected to an end of the elongated member, to mount the member on a track. The elongated member has a tubular core with an upper end and a lower end and a tubular sleeve having an upper-end opening and a lower-end opening. The core is received within the sleeve such that the sleeve is axially movable relative to the core, and the upper end of the core is connected to the attachment mechanism through the upper-end opening of the sleeve. A spring provides spring-loading for the sleeve such that the upper end of the sleeve is urged against the track to resist motion of the elongated member on the track. The attachment mechanism has a mount for slidably mounting the elongated member on the track, and a pivoting joint connected between the elongated member and the mount, such that the pivoting joint allows the elongated member to be pivoted relative to the track.

Abstract: A crane having an upper block, a lower block, a drum, and two ropes. The upper block includes an equalizer having a yoke to which the ropes are connected. The connections between the ropes and the yoke include load cells that measure the forces carried by each of the ropes. The upper block includes a fail-safe system that prevents failure of the upper block in overload conditions.

Abstract: A storage rack comprises horizontally extending front and back beams having upper surfaces, on which is supported a roller track comprising two side rails, a series of rollers journalled between and projecting above the side rails, and a series of tie rods extending between and bracing the side rails. The roller track is secured to the front and back beams by a front clip embracing an underside of the front beam, a J-bolt connected to the front clip and hooked over a front one of the tie rods, a back clip embracing an underside of the back beam, and a J-bolt connected to the back clip and hooked over a back one of the tie rods.

Abstract: Apparatus and method for providing a door handle adapted to receive interchangeable display inserts. The door handle includes a handle body adapted to be coupled to a door of an enclosure. A receiving space is provided within the handle body for exchangeably receiving a display insert. A releasable closure mechanism is associated with the receiving space and adapted to be configured between an open configuration in which display inserts may be inserted and removed from the receiving space and a closed configuration in which a display insert is secured within the receiving space. The display insert has at least two substantially planar members that are associated together to fill the receiving space so that they are held substantially stationary when installed therein. A protective front facing planar member is located at a front face of the door handle and a graphic display containing intermediate planar member is positioned behind the protective front facing planar member.

Abstract: In a releasable locking device, which is useful at a beam-to-column connection in a storage rack, a housing having a lateral wall with two parallel slots has an end wall at an outer end and is open at the inner end, a locking pin having an internal portion movable within and along the lateral wall is movable between a retracted position and an extended position, toward which the locking pin is biased, and an outer sleeve is movable outside and along the lateral wall of the housing and is connected to the locking pin via a connecting pin extending through the locking pin, through the parallel slots, at each end to the outer sleeve. The outer sleeve has an external flange to facilitate pulling of the outer sleeve to move the locking pin toward the retracted position.

Abstract: A storage rack system includes a base detachably secured from the storage rack wherein the materials of construction for the base are a heavier gauge material than that of the storage rack for improved weight carrying capability and for resistance to abuse while minimizing the cost of the rack assembly. The base has offset front legs closest to the aisle to protect the front legs from accidentally being hit by a forklift truck.