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    • 5. 发明授权
    • Desoldering apparatus
    • 脱焊设备
    • US4887759A
    • 1989-12-19
    • US223392
    • 1988-07-25
    • Larry G. Alexander
    • Larry G. Alexander
    • B23K1/018H05K13/04
    • H05K13/0491B23K1/018
    • Apparatus for desoldering, characterized by its suction and pressure effects being achieved by the stroking of a piston in an air cylinder. In the preferred embodiment, the suction effect for drawing in melted solder is forced by a spring, with venting of the pressure previously existing; and the pressure effect for ejecting the melted solder is by the reverse direction stroke of the piston, which not only causes the piston-stroke to pressurize the control tube but to impart energy to the spring for its subsequent suction-stroke operativity. The pressurizing and venting of the air cylinder are controlled by valving which controls the air cylinder's venting and connection to an associated source of air pressure; and the components provide the way by which the advantageous speed differential is obtained as to the suction and ejection effects, the suction being relatively slow for easy and assurance of solder pick-up, but the ejector effect being relatively fast, for sureness of ejection of the solder at the discharge station.
    • 用于拆焊的装置,其特征在于其吸力和压力效应通过气缸中的活塞的行程来实现。 在优选实施例中,用于拉制熔化的焊料的抽吸效应被弹簧强制,先前存在压力的排放; 并且用于喷射熔融焊料的压力效应是通过活塞的反向行程,这不仅使得活塞行程对控制管加压,而且为了随后的吸入冲程操作性而向弹簧赋予能量。 气缸的加压和排气由阀控制,阀控制气缸的排气和连接到相关的气压源; 并且这些组件提供了获得有利的速度差异的方法,即吸入和喷射效果,吸力相对较慢,以便容易且确保焊料拾取,但是喷射器效果相对较快,以确保喷射的稳定性 在放电站的焊料。
    • 6. 发明授权
    • Locking device
    • 锁定设备
    • US4938623A
    • 1990-07-03
    • US371621
    • 1989-06-26
    • Larry G. Alexander
    • Larry G. Alexander
    • A61G5/10F16B7/06F16B7/10
    • A61G5/10A61G5/1054F16B7/06F16B7/10Y10T403/293Y10T403/295Y10T403/32983Y10T403/5733Y10T403/7084
    • A locking bar for blocking relative movement of movable parts of a device, particularly providing anti-theft nature to devices such as wheelchairs which would probably be manipulated to a collapsed condition as an incident to a theft of the device; and anti-theft nature is especially provided by the locking bar made to appear to be merely a non-removable axle, yet made shortenable for removal, and thus chair-collapsability by authorized personnel, by an internal sliding operativity which is concealed but which achieves length-changing be engagement of screw-threaded parts to permit manual torque-application to movable parts to achieve the length-changing, the sliding member being a socket whose sliding into or from its length-changed position is effected merely by tilting to achieve positioning by gravity.
    • 一种锁定杆,用于阻止装置的可移动部件的相对运动,特别是对诸如轮椅的装置提供防盗性质,所述装置可能被操纵为作为入射到装置的盗窃的折叠状态; 并且防盗性特别是由被认为仅仅是不可拆卸的轴的锁定杆提供,并且由被授权的人员通过内部滑动操作而被缩短以便被拆卸,并且因此被椅子折叠 长度变化是螺纹部分的接合,以允许手动扭矩施加到可移动部件以实现长度改变,滑动构件是滑动到其长度改变位置的插座,其仅通过倾斜实现以实现定位 通过重力。