35results about How to "Lower ejection force" patented technology

A hand-held, multi-channel pipettor has an electronically controlled motor to reposition pipette tips for different center to center spacing. Each repositionable tip fitting assembly has a cam following pin that is driven by cam tracks in a motor driven roller drum. Stationary ports for the multiple aspiration cylinders are strategically placed to simplify management of flexible tubes leading to the repositionable pipette tip fitting assemblies. The pipettor has a user interface that can be operated conveniently by one hand to reposition pipette tips. It has a pipette tip ejection mechanism with a sinusoidal stripper bar.

The present invention provides a tampon pledget with one or more of the following properties: increased absorbency rate; high absorbent capacity and fluid retention; rapid expansion potential; and ease of ejection of the pledget from the applicator. Surprisingly, the one or more properties are achieved by using a modified dual cross-pad, folded, compressed tampon pledget design.

A foil container (11) has two foil bag chambers (12, 16) arranged next to one another for compound components of a multi-component compound which are stored separately from one another, and a head (21) having a base plate (22) with a contact side (23) at which two receptacle portions (24, 25) are provided, each for one end of the respective foil bag chambers (12, 16), and a mixer connection (31) in which there are provided a first outlet opening (33) for one of the compound components of the multi-component compound and a second outlet opening (34) for an additional compound component of the multi-component compound and arranged in the first outlet opening (33).

The invention discloses a vulcanizing mold of a rubber bushing. The vulcanizing mold comprises a bottom plate, an ejecting mechanism, a lower mold plate, an upper mold plate and a product positioning plate, wherein the ejecting mechanism is arranged on the bottom plate and can move up and down; the lower mold plate is arranged on the ejecting mechanism and is fixed on the bottom plate; the upper mold plate is arranged above the lower mold plate; the product positioning plate is arranged between the lower mold plate and the upper mold plate; the upper mold plate is provided with a plurality of upper cavities and flowing channels communicated with the upper cavities; the lower mold plate is provided with a plurality of lower cavities; the product positioning plate is provided with a plurality of positioning cavities; the ejecting mechanism comprises a plurality of ejecting rod groups; each ejecting rod group comprises a first ejecting rod and a plurality of second ejecting rods which are arranged around the first ejecting rod in a circle; the lower mold plate is provided with a plurality of ejecting hole groups; each ejecting hole group is distributed around one lower cavity along one circle. The vulcanizing mold disclosed by the invention has the advantages that when in demolding, the ejecting mechanism supports an inner-layer lining pipe and an outer-layer lining pipe simultaneously, the stressing of all the parts of the rubber bushing is uniform, and the deformation is unlikely to occur, so that the locking of a product can be prevented, smooth demolding of the product can be guaranteed, the size of the product can be guaranteed, and the rejection rate is reduced.

The invention discloses a damage-free compressor rotor heat jacket assembly disassembling device. The damage-free compressor rotor heat jacket assembly disassembling device is provided with a jacking mechanism which is capable of lifting vertically, a clamp jig capable of clamping a workpiece is arranged at the top of the jacking mechanism, a high frequency heating device used for heating the workpiece and capable of moving leftwards and rightwards is mounted on the upper left portion of the jacking mechanism, a hydraulic ejection mechanism capable of ejecting out a crankshaft is mounted above the jacking mechanism and the high-frequency heating device, a pressure center of the hydraulic ejection mechanism is coincided with the center of the jacking mechanism, a rotor shifting mechanism capable of clamping a rotor to move leftwards and rightwards is mounted on the upper right portion of the jacking mechanism and below the hydraulic ejection mechanism, a rotor cooling mechanism capable of cooling a rotor shifted from the rotor shifting mechanism is mounted below the rotor shifting mechanism, and the jacking mechanism, the high-frequency heating device, the hydraulic ejection mechanism, the rotor shifting mechanism and the rotor cooling mechanism are connected with a controlling mechanism. The damage-free compressor rotor heat jacket assembly disassembling device has the advantages of simplicity in operation, high disassembling efficiency, small damage to disassembled parts, and good reusability.

An iron-based powder for powder metallurgy effectively prevents agglomeration of a lubricant, has excellent flowability, can evenly fill thin-walled cavities, keeps the ejection force after formation low, and does not lower sintered body strength by adhering either or both of an alloy component and a cutting ability improving agent to the surface of iron powder with a binder that has a melting point of 150° C. or lower, adhering carbon black to the surface of the binder, and setting the amount of free binder to 0.02 mass % or less.

A hand-held, multi-channel pipettor has an electronically controlled motor to reposition pipette tips for different center to center spacing. Each repositionable tip fitting assembly has a cam following pin that is driven by cam tracks in a motor driven roller drum. Stationary ports for the multiple aspiration cylinders are strategically placed to simplify management of flexible tubes leading to the repositionable pipette tip fitting assemblies. The pipettor has a user interface that can be operated conveniently by one hand to reposition pipette tips. It has a pipette tip ejection mechanism with a sinusoidal stripper bar.

An adapter for connecting an array of pipette tips having through bores with conical upper ends to a multichannel air displacement pipettor having a plurality of ports with compliant internal sealing surfaces. The adapter comprises a planar base with an array of openings extending between its top and bottom surfaces. Sealing tubes project upwardly from the top surface, and tip mounting tubes project downwardly from the bottom surface, with pairs of sealing tubes and tip mounting tubes being arranged coaxially and in communication with respective ones of the openings in the base. The tip mounting tubes are externally dimensioned and configured for insertion into the conical upper ends of the pipette tips, and the sealing tubes are externally configured and dimensioned for insertion into the ports of the pipettor and into sealing interengagement with their compliant internal sealing surfaces.

The ink jet head records an image on a recording medium by ejecting ink containing charged fine particles by means of an electrostatic force, and includes an ink guide, an ink flow path that supplies the ink to the ink guide and an ejection electrode that ejects the supplied ink. The ejection electrode includes a surrounding electrode arranged so as to surround an outer periphery of the ink guide with a spacing, or side-by-side electrodes arranged on both sides of the ink guide so as to oppose each other with a spacing. A ratio between an effective inside diameter of the surrounding electrode or an effective spacing between the side-by-side electrodes, and a distance from the surrounding electrode or the side-by-side electrodes to a tip end of the ink guide protruding on the side of the recording medium is set in a range of 1:0.5 to 1:2 or 1:0.7 to 1:2.8, respectively.

The invention relates to a process for producing a tabletting aid, which comprises the following process steps: - at least two of the following components are provided: a filler/binder; a lubricant; a flow regulator; a decomposition accelerator; the components provided are mixed with one another.

The invention relates to an ejection device for machining a drill stem. The ejection device comprises a supporting frame; a drill stem supporting base and a connection platform are arranged above the supporting frame, the drill stem supporting base comprises a fixed base and a movable base which are arranged in a spaced mode, the drill stem is placed between the fixed base and the movable base, and the upper surface of the movable base is lower than the upper surface of the connection platform; the movable base is movably installed on a bracket through a vertical guide rod, the bracket is fixedly connected with the supporting frame, and the guide rod is sleeved with a vertical spring arranged between the bracket and the movable base; an ejection mechanism is arranged below the drill stem and comprises an ejection hydraulic cylinder and an ejection block installed at the upper end of an piston rod of the ejection hydraulic cylinder, a cylinder body of the ejection hydraulic cylinder is fixedly connected with the supporting frame, and the upper surface of the ejection block is provided with an ejection bevel inclining in the output direction of the drill stem. The ejection device for machining the drill stem is simple in structure and reasonable in design; by means of an elastic lifting type supporting structure, the ejecting force can be reduced, moreover, the drill stem can be prevented from being output unstably, and the working reliability of the ejection device is high.

The present invention relates to a directly compressible composition for the production of tablets which comprise fine-grained polyvinyl alcohols (PVAs) and fine-grained microcrystalline celluloses (MCCs) in a co-mixture. The present invention also relates to the use of this mixture and to a process for the preparation thereof.

An adapter for connecting an array of pipette tips having through bores with conical upper ends to a multichannel air displacement pipettor having a plurality of ports with compliant internal sealing surfaces. The adapter comprises a planar base with an array of openings extending between its top and bottom surfaces. Sealing tubes project upwardly from the top surface, and tip mounting tubes project downwardly from the bottom surface, with pairs of sealing tubes and tip mounting tubes being arranged coaxially and in communication with respective ones of the openings in the base. The tip mounting tubes are externally dimensioned and configured for insertion into the conical upper ends of the pipette tips, and the sealing tubes are externally configured and dimensioned for insertion into the ports of the pipettor and into sealing interengagement with their compliant internal sealing surfaces.