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    • 6. 发明授权
    • Combined vehicle service and parking brake control mechanism
    • 组合车辆服务和驻车制动控制机构
    • US4462487A
    • 1984-07-31
    • US372940
    • 1982-04-29
    • Edward H. WarwickDonald L. ParkerRalph J. Kaup
    • Edward H. WarwickDonald L. ParkerRalph J. Kaup
    • B60T7/00B60T7/04B60T11/10B60K41/28
    • B60T7/047B60T11/103B60W10/10B60W10/18B60W30/1819Y10S188/02Y10T477/84
    • A brake pedal contacts a pin holding the push rod for the master cylinder, applying the hydraulic service brakes in the normal manner when the pedal is depressed. When the transmission lever is shifted into the park position a solenoid type servo is energized, engaging a pawl, mounted on the brake pedal, with a gear sector pivoted about the pivot point of the brake pedal. A one-way spring clutch is energized to hold the link in which the push rod pin is installed in the applied position during parking brake apply, retaining hydraulic brake pressure during that operation. When shifting to park, the brake pedal is raised by a vacuum servo so that the pedal can be actuated to apply the parking brake without contacting the push rod pin, and therefore without hydraulic pressure resistance. Movement of the pedal with the pawl engaged exerts tension on the parking brake cable through the gear sector to apply to parking the brake. When the ignition key is turned off, the spring clutch is released and the hydraulic service brakes are released. The pawl is retracted when the ignition key is turned off, and another spring clutch prevents release of the parking brake. This clutch is released upon shifting the transmission lever from park. A circuit is provided which prevents reengagement of the pawl until the transmission lever is shifted out of and then back into park.
    • 制动踏板接触保持主缸的推杆的销钉,当踏板被压下时以正常方式施加液压行车制动器。 当传动杆移动到停放位置时,螺线管型伺服器被通电,与安装在制动踏板上的棘爪接合,围绕制动踏板的枢转点枢转的齿轮部分。 单向弹簧离合器通电以在驻车制动期间保持其中安装有推杆销的连杆在施加位置,在该操作期间保持液压制动压力。 当转移顶部时,制动踏板由真空伺服器升高,使得踏板可以被致动以施加驻车制动器而不接触推杆销,因此没有液压阻力。 踏板与棘爪接合的运动通过齿轮部分在驻车制动器电缆上施加张力,以应用于停车制动。 当点火钥匙关闭时,释放弹簧离合器并释放液压制动器。 当点火钥匙关闭时,棘爪缩回,另一个弹簧离合器防止驻车制动器松开。 将传动杆从公园移开时,释放该离合器。 提供了一种电路,其防止棘爪的重新接合,直到传动杆移出并且然后返回到停车。
    • 9. 发明授权
    • Areal array of tubular electron sources
    • 管状电子源的面阵列
    • US4333035A
    • 1982-06-01
    • US34984
    • 1979-05-01
    • Donald L. ParkerWilbur A. PorterRobert C. Rogers
    • Donald L. ParkerWilbur A. PorterRobert C. Rogers
    • H01J1/13H01J29/46H01J31/12H01J37/06H01J29/70
    • H01J1/13B82Y10/00B82Y40/00H01J29/46H01J31/128H01J37/06H01J37/3177H01J2237/31774
    • An areal array of tubular electron sources is disclosed for producing multiple directed electron beams. Sources (10) are located in a parallel array between a conductive back plate (12) at a closed end of the tubes and a conductive face plate (14) having holes therein aligned with the second open end of each of the electrode tubes (10). An electrical current source (30) is connected between the back plate (12) and face plate (14) to resistively heat each of the sources (10) to a temperature high enough for thermionic electron emission. Electron beams (34) are produced from within each of the tubular electrodes (10). Extraction means which may include a magnetic field from a coil (29) and an extraction lens (18) tends to withdraw the electrons from within the sources (10) in an intense, collimated beam (34). Beams (34) are accelerated toward a target (28) through a beam deflection unit (22) having holes (24) associated with each of the electron beams (34 ). Beam deflection plates (26) within each of the holes (24) deflect the electron beams (34) to impact selected points on a target (28).
    • 公开了一种用于产生多个定向电子束的管状电子源的面阵列。 源(10)位于管的封闭端的导电背板(12)和导电面板(14)之间的平行阵列中,导电面板(14)具有与每个电极管(10)的第二开口端对准的孔 )。 电流源(30)连接在背板(12)和面板(14)之间,以将每个源(10)电阻加热到足够高的热电子发射温度。 从每个管状电极(10)内产生电子束(34)。 可以包括来自线圈(29)和提取透镜(18)的磁场的提取装置倾向于在强烈的准直光束(34)中从源(10)内撤出电子。 光束(34)通过具有与每个电子束(34)相关联的孔(24)的光束偏转单元(22)朝向目标(28)加速。 每个孔(24)内的光束偏转板(26)使电子束(34)偏转以冲击目标(28)上的选定点。
    • 10. 发明授权
    • Dual power brake booster
    • US3935709A
    • 1976-02-03
    • US550872
    • 1975-02-18
    • Thomas P. MathuesDonald L. Parker
    • Thomas P. MathuesDonald L. Parker
    • B60T13/565B60T13/577B60T13/00
    • B60T13/577B60T13/565
    • A vehicle brake booster and master cylinder assembly has a vacuum suspended booster section which is controlled by movement of the vehicle brake pedal. A hydraulic booster section is in series with the vacuum suspended booster section, and a master cylinder unit is in series with the hydraulic booster section. The assembly is so arranged that in normal operation the vehicle operator obtains booster brake actuating pressures by operation of the vacuum suspended booster which acts through the hydraulic booster mechanism without operating the hydraulic booster. When greater brake actuating pressures are required, as indicated by increased brake pedal force exerted by the operator, the vacuum booster reaches its limit or run-out condition and the hydraulic booster is operated so as to continue the increase in master cylinder output pressure. If still further master cylinder output pressure is required when the hydraulic booster has reached its run-out condition, the master cylinder is actuated manually through mechanical force transmitting elements which are parts of the booster sections. The vacuum suspended booster section is connected to the vehicle engine intake manifold as a vacuum source, and the hydraulic booster section is connected in the hydraulic power steering gear system so that hydraulic pressure for its operation is generated by the power steering gear pump. The assembly is so interconnected that the master cylinder can be operated manually when there is no or insufficient power pressure to operate either booster section. It may also be operated by actuating the vacuum suspended booster section, and, when no hydraulic pressure is available to the hydraulic booster section, this operation may be followed by manual actuation. It may be operated by initially actuating the hydraulic booster section when there is no vacuum available for initially operating the vacuum suspended booster section, followed by manual actuation as needed. In one embodiment the assembly utilizes a single hydraulic fluid for the hydraulic booster section and for the master cylinder and brake apply circuitry. In another embodiment the hydraulic booster section is operated by a separate fluid circuit which is fluidly independent of the master cylinder and brake apply pressure circuitry.