摘要:
A syringe for dispensing liquid materials to a substrate. In one embodiment, the syringe includes a barrel having a first end, a second end, and an interior reservoir. A piston is slidably disposed within the reservoir and is movable to increase or decrease a volume of the interior reservoir near the first end of the barrel. A first end of the piston has a hemispherically-shaped surface profile, with an elongated apex extending therefrom, to dispense liquid from the first end of the barrel when the piston is moved in a direction toward the first end.
摘要:
A liquid dispensing valve includes a valve body, a valve seat, and a reciprocating valve member engageable with the valve seat for controlling flow through a liquid outlet. A calibration device includes a rotatable stroke control stop member and a rotatable reference ring. The reference ring and stop member may be initially rotated to a zero position and, subsequently, the stop member may be rotated to set the desired stroke length. One or more fluid fittings are provided and sealed against the valve body using a clamp plate.
摘要:
A miniature aircraft type circuit breaker (10') has a threaded mounting bushing (18) in which a push button (20) is slidably received. Push button (20) is coupled to a movable contact arm (24) to move a movable electrical contact (26) into and out of engagement with a stationary electrical contact (28). A flexible fluid splash barrier sleeve (32) is telescopically received on a reduced diameter portion (34) of push button (20) above a white indicator portion (30) of the push button and has a lower distal end portion (36) which engages an annular top surface (38) of the bushing when push button (20) is depressed to bring the electrical contacts into engagement. Adhesive material may be used to affix the barrier sleeve to the reduced diameter portion (34) which optionally can have a roughened surface to enhance adhesion.
摘要:
A fluid dispensing system having a fluid dispenser supporting a barrel containing liquid to be dispensed. The barrel has a slidable piston therein with the liquid on a forward piston side and a chamber on a rear piston side. Positive and negative pressure fluid circuits have components operable to apply respective positive and negative fluid pressures to the rear side of the piston. A pressure transducer is operable to sense a fluid pressure in the chamber; and a dispenser control is operative to store a pressure-time relationship during an initial dispensing cycle and thereafter, operate a component in the positive pressure fluid circuit to maintain the pressure-time relationship during a subsequent dispensing cycle.
摘要:
A syringe for dispensing liquid materials to a substrate. In one embodiment, the syringe includes a barrel having a first end, a second end, and an interior reservoir. A piston is slidably disposed within the reservoir and is movable to increase or decrease a volume of the interior reservoir near the first end of the barrel. A first end of the piston has a hemispherically-shaped surface profile, with an elongated apex extending therefrom, to dispense liquid from the first end of the barrel when the piston is moved in a direction toward the first end.
摘要:
A hand-held instrument has a business end and a handle attached to the business end. The handle has a gripping portion and a longitudinal axis. A knob is provided on the gripping portion of the handle to facilitate the wielding of the hand-held instrument. The knob is disposed such that it projects away from the handle in a direction transverse to the longitudinal axis of the handle. In a preferred, but not required embodiment, the knob is removably attached to the handle by a quick release attachment device. In a typical, but not required, such embodiment, the quick release attachment device includes a male connection pin disposed within the knob and a female receptor disposed within the hand tool.
摘要:
A hand-held instrument has a business end and a handle attached to the business end. The handle has a gripping portion and a longitudinal axis. A knob is provided on the gripping portion of the handle to facilitate the wielding of the hand-held instrument. The knob is disposed such that it projects away from the handle in a direction transverse to the longitudinal axis of the handle. In a preferred, but not required embodiment, the knob is removably attached to the handle by a quick release attachment device. In a typical, but not required, such embodiment, the quick release attachment device includes a male connection pin disposed within the knob and a female receptor disposed within the hand tool.
摘要:
A hand tool and lanyard combination comprised of a hand tool to which a lanyard is removably attached. The lanyard is a length of flexible cable having an anchor and a free end. The anchor end has a housing with a spring mounted rotatable spool disposed within the housing so that the length of flexible cable is retractable by the rotation of the rotatable spool. The free end has a free end attachment mechanism for removably attaching the free end to the hand tool.
摘要:
A fluid dispensing system having a fluid dispenser supporting a barrel containing liquid to be dispensed. The barrel has a slidable piston therein with the liquid on a forward piston side and a chamber on a rear piston side. Positive and negative pressure fluid circuits have components operable to apply respective positive and negative fluid pressures to the rear side of the piston. A pressure transducer is operable to sense a fluid pressure in the chamber; and a dispenser control is operative to store a pressure-time relationship during an initial dispensing cycle and thereafter, operate a component in the positive pressure fluid circuit to maintain the pressure-time relationship during a subsequent dispensing cycle.