摘要:
A toner container for containing toner has a container main body portion, a container end portion, an aperture portion, and an extendable portion connecting the container main body portion and the container end portion. The extendable portion renders the portion capable of a relative rocking motion. The toner is discharged from the aperture portion by the relative rocking motion of the container main body portion and the container end portion.
摘要:
A method for forming a cylindrical structure by fastening an engaging member to an open end of a cylinder, including the steps of preparing an inner surface at the open end of the cylinder to provide the cylinder with a reduced thickness, providing an engaging member having a plurality of discrete recesses formed circumferentially around the periphery of the engaging member, and fitting the engaging member into the processed open end of the cylinder. The invention further comprises bending and cutting the processed open end of the cylinder around the open end of the cylinder such that plural projections project into the recesses of the engaging member. In this manner the engaging member is restricted from relative movement between the cylinder and the engaging member in both the longitudinal and rotational directions.
摘要:
A pneumatic pulverizer comprises an acceleration pipe for transporting powders under acceleration by a high pressure gas, a pulverization chamber, a collision member for pulverizing the powders ejected from the acceleration pipe by a force of collision, the collision member being provided against the outlet of the acceleration pipe, a raw material powder supply inlet provided on the acceleration pipe, and a secondary air inlet provided between the raw material powder supply inlet and the outlet of the acceleration pipe.
摘要:
A pneumatic pulverizer comprises an acceleration pipe for transporting powders under acceleration by a high pressure gas, a pulverization chamber, a collision member for pulverizing the powders ejected from the acceleration pipe by a force of collision, the collision member being provided against the outlet of the acceleration pipe, a raw material powder supply inlet provided on the acceleration pipe, and a secondary air inlet provided between the raw material powder supply inlet and the outlet of the acceleration pipe.
摘要:
A class-AB push-pull drive circuit comprises a P channel MOS transistor having a source connected with a DC power source, a drain connected with an output terminal and a control electrode coupled with an input terminal through a voltage-to-current converter and a current-to-voltage converter and an N channel MOS transistor having a source grounded, a drain connected with the output terminal and a control electrode coupled with the input terminal. Conversion characteristics of the converters are so set that a potential difference between the control electrodes of the transistors is kept constant independently of the voltage of an input signal. Thus, the rise and fall of voltage at the output terminal during the conducting state of respective transistors is decreased. In addition, a push-pull drive operation by the transistors can be achieved in accordance with the input signal.
摘要:
A toner for developing an electrostatic latent image is produced by classifying a pulverized feed material in a first classifying means into coarse powder and fine powder; pulverizing the coarse powder and feeding back the pulverized product to the first classifying means; introducing the fine powder to a second classifying means having a multi-division classification zone divided into at least three sections, where it is classified into a coarse powder portion, a median powder portion, and a fine powder portion; and feeding back the coarse powder to said pulverizing means or first classifying means. The median powder has a volume average particle diameter of from 4 .mu.m to 10 .mu.m and a coefficient of variation of number distribution, represented by A, satisfying the following condition: 20.ltoreq.A.ltoreq.45, and the weights B, C, F, G and M are controlled to satisfy the expressions: 0.3 .ltoreq.weight B/weight C.ltoreq.0.8, 0.2.ltoreq.weight G/weight C.ltoreq.0.7 and 0.8.ltoreq.weight B/(weight F+weight M).ltoreq.1.2.
摘要:
A developer supply container includes a developer accommodating portion configured to accommodate a developer, a discharge opening configured and positioned to permit discharging of the developer from the developer accommodating portion, and a driving force receiving portion configured and positioned to receive a driving force. In addition, a pump portion is capable of being driven by the driving force to alternately change an internal pressure of the developer accommodating portion between a pressure lower than an ambient pressure and a pressure higher than the ambient pressure to discharge the developer through the discharge opening.
摘要:
A propylene polymerization reaction apparatus and a production method of a propylene-based polymer are capable of producing a continuous multi-stage polymer in low cost, high productivity and stably, and significantly reducing generation amount of an off-specification product accompanying change of polymerization condition, in multi-stage continuous vapor phase polymerization method of a propylene-based polymer using a catalyst for olefin polymerization. A reaction apparatus for producing a propylene-based polymer by a multi-stage continuous vapor phase polymerization method is used. One or more reactor of a horizontal-type reactor having inside a stirring machine which rotates around a horizontal axis, and a continuous stirred tank reactor to be connected to the horizontal-type reactor are provided, and a production method of a propylene-based polymer using the same.
摘要:
In a fine particle dispersion, a fine particle (P) is dispersed in a mixed organic solvent. The fine particle (P) is formed of one type or not less than two types of a metal, an alloy, and/or a metallic compound, and has a mean particle diameter between 1 nm and 150 nm for primary particles thereof. Further, the fine particle (P) has a surface at least a part thereof coated with a polymer dispersing agent (D).
摘要:
A method for producing a propylene-based polymer, including polymerizing propylene or propylene and an α-olefin except propylene in the presence of a catalyst with a horizontal polymerization reactor equipped with stirring vanes rotating around a horizontal axis therein by a continuous vapor-phase polymerization, which removes heat of polymerization by heat of vaporization of a liquefied propylene, wherein the reactor can set a plurality of area sections different in temperature in a horizontal direction inside the reactor, and satisfies at least one of i) a temperature difference, ΔT1=Tω−Tα, between an area section including an upstream end of the reactor (Tα) and a downstream end (Tω) thereof is 0.1 to 20° C. and ii) a temperature difference, ΔT2=Tx−Tz, between an area section including a catalyst feed part (Tx) and dew point (Tz) of a mix gas in the reactor is 0 to 5° C.