549 results about "Hand pump" patented technology

A variable volume raft containing adjustable ratio and amounts of air and or water. The buoyancy and ballast of the raft are routinely adjusted to accommodate additional occupants and changing weather conditions. A manual pump can be the primary or back up source for initial inflation. The torque pump twisted by hand or amplified by a lever arm generates air pressure for maintenance and repairing deflating lacerations at sea. The pumps collector gathers and pressurizes rain water for drinking in one chamber while pressurizing sea water as a stabilizing ballast in another chamber. A double hull or full floor chamber allows huge variations in buoyancy or ballast as dictated by changing needs for stability versus mobility. A compressed liquid or two-part foam confers puncture resistance to a portion of the raft. A thrown self-righting manual air horn, worn water-activated air horns and water activated transmitted signals, mark the site for rescuers.

Evacuation devices for evacuating the socket of a prosthetic limb, and prosthetic limb systems employing such vacuum devices. The evacuation devices each preferably include at least an electrically powered vacuum pump and a power source. Such evacuation devices can be attached at various locations on or in a prosthetic limb. Because the electrically powered pump does not require manual manipulation to create vacuum, it is substantially easier to use than a manual pump. Due to the small size and small power source required by such an electrically powered pump, an evacuation device may be readily incorporated into a prosthesis.

An artificial limb using a vacuum attachment principle is provided with an electrically activated pump that may be readily incorporated into the artificial limb or into a separate portable device. Because the electrically activated pump does not require manual manipulation to create vacuum, it is substantially easier to use than a manual pump. Due to the small size and small battery required by the electrically activated pump disclosed here, it may be readily incorporated into a prosthesis.

A portable, lightweight bowel evacuation apparatus and method of delivering a colonic lavage is provided. The apparatus includes a liquid bag containing lavage liquid connected to a supply conduit that leads to a nozzle assembly. The apparatus also includes a drain conduit leading from the nozzle assembly to a waste collection. A pulsating member, such as a manual pump or squeeze bulb is provided to generate pulsed waves in the lavage liquid in the patient's colon so as to break up and remove fecal material.

An apparatus for cleaning of tubular threads having adjustable spacing brushes to accommodate tubulars of different diameters. A plurality of brushes are rotated in a drum, which fits over the tubular connection. The brushes are mounted on L-shaped brackets, which are in turn mounted to a rotary driver by a shaft extending through slots in the brackets. By loosening the attachment of the brackets on the rotary driver, the brackets can be slid radially inward or outward to the extent of the slots, thereby adjusting the diameter of the threads that can be cleaned. The front access plate and seal plate, through which the tubular extends into the drum, are preferably held to the drum by hand operable latches. Solvent may be injected into the drum and onto the threads by a hand pump, and captured in the drum and drained into a container for disposal or reuse.

An implantable adjustable sphincter system is comprised of a band configured to encircle a portion of an anatomical passageway, a manual pump, a reservoir in fluid communication with the pump, and a valve assembly in fluid communication with the band and the manual pump. The valve assembly is comprised of a first configuration and a second configuration, and is operable to be manually switched between configurations. The first configuration only permits fluid to flow from the band toward the reservoir. The second configuration only permits fluid to flow from the reservoir toward the band. The manual pump is in fluid communication with the valve assembly and the reservoir, and is manually operable to transfer fluid between the reservoir and the band when the valve assembly is in the second configuration.

A portable stand alone treatment station for eyes which have been exposed to corrosive liquids, noxious gases and foreign objects. An eye washing fluid reservoir and one or more applicators are mounted on a two-wheel cart. The eye washing fluid in the reservoir is stored under pressure to discharge the eye washing fluid from the applicator when a resiliently biased valve is opened. The tank is pressurized by a hand pump mounted in the tank or through a valve in a wall of the tank. The portability of the station allows it to be relocated on an as needed basis or to be transported to an injured person and carried in a vehicle.

A device inhibits oxidation of wine remaining in a bottle. A stopper and an inflatable bladder replace the cork. In a first embodiment, a wine duct formed in the stopper is open when the stopper is in an extended position and is closed when the stopper is retracted. Air displaces but does not contact the wine by filling the bladder through an air duct formed in the stopper. After decanting, air that seeps into the wine chamber is removed by forcing air into the bladder, using an external hand pump inserted into the air duct. When sufficient air is pumped into the bladder to raise the wine level to contact the stopper, the stopper is placed into its retracted position. In an additional embodiment, a valve controls opening and closing of the wine duct and the stopper has no extended and retracted position.

A hand pump includes a base having an inlet opening and an outlet opening, a manual pump disposed on the base and communicating with the inlet opening of the base, a receptacle disposed on the base and communicating with the outlet opening of the base, a casing disposed on the receptacle and having a passage coupled to the outlet opening of the base and having a channel coupled to the receptacle and having a pathway formed between the passage and the channel of the casing, and an outlet hole communicated with the channel of the casing, a valve shank is slidably engaged in the channel of the casing for selectively blocking and sealing the outlet hole of the casing.

A hand pump for inflating rafts or similar inflatables has a first piston with a relatively low pumping volume which is capable of pumping relatively small volumes of air into a raft as the raft becomes full and is approaching its maximum pressure, and a second piston with a larger pumping volume that can pump larger volumes of air into a raft when it is empty or only partially filled. Both pistons are operated with a single plunger. When the plunger is rotated in a first direction to a first position a locking mechanism allows it to operate only the first piston, and when the plunger is rotated in a second direction to a second position the locking mechanism allows it to operate only the second piston.

A compact, highly portable, multi-mode fluid injection system able to reach difficult to access places to efficiently service a variety of diameter pipes, tubing and related components. The system comprises a tank having a first port which allows access to the tank's upper contents and a second port which allows access to the tank's lower contents, a means for introducing liquid into the tank, a hand pump built into the tank to pressurize the tank and its contents, one or more applicators, and flexible hoses which connect the applicators to the first and/or second port to supply the applicators with the tank's contents. The system is capable of producing, alternatively, pressurized liquid or gas without an independently powered air compressor or consumable gas cartridges, and without having to empty and/or fill the tank. An onboard means for stowing the hose conduits, an injection gun applicator having a small travel-high flow valve with adjustable accumulation chamber, and applicators having stiff-flexible tips and tip extensions are also described.

A filling system for filling a travel dispenser comprising:

• • a base (1);
  • a fluid supply (2) that is mounted on the base (1); and
  • a travel dispenser (3) including a reservoir (31) that is provided with a filling orifice (32), the reservoir defining a determined maximum volume, the travel dispenser (3) being received in removable manner in a filling housing (13) that is defined by the base (1);
  • wherein the base (1) comprises:
    • a manual pump (4) for taking fluid from the supply (2) and delivering it through the filling orifice (32) into the reservoir (31) of the travel dispenser (3); and
    • an actuator member (43; 42) for actuating the manual pump (4),
  • said system being characterized in that the manual pump (4) defines a pump chamber (40) having a maximum volume that is substantially equal to the determined maximum volume of the reservoir (31) of the travel dispenser (3), such that, from a completely empty state, the reservoir of the travel dispenser (3) is filled by pressing once on the pusher (43).

Surgical device to allow an easy delivery of the fetus during a Cesarean Section when fetal head is deeply wedged in the female pelvic cavity. The device consists of inflatable portion to lift the fetal head attached to foldable base plate that can be folded with the inflatable portion for insertion of the device into the female vagina below the fetal head. The inflatable portion is inflated by injecting biocompatible fluid by pressurizing device such as syringe, pressure bag, hand pump or powdered pump. The device can also be of use in other situations like abdominal delivery of a premature or small baby and when cord prolapse has occurred.

A hand-operated pump that can be mounted in a cosmetic container is provided. A compression spring that provides restoring force during pumping is provided outside a housing such that it is possible to prevent contents from being contaminated and to easily pump highly viscous contents. Also, since the compression spring is stably fixed to a shaft in a state where the button is separated, it is possible to easily assemble the pump, to easily partialize parts (to modularize parts), and to prevent the pump from malfunctioning even if the button drifts away while in use. Also, since an introducing hole in the lower end of the housing is opened and closed by an opening and closing member of a specific shape, it is possible to obtain high sealing force and pumping force during

The invention discloses a potential-based spontaneous percolation measuring device which comprises a confining pressure control system, a potential monitoring system and a pressure difference control system. The confining pressure control system comprises a rack, a rubber cylinder, a core, a confining pressure valve, a confining pressure pump and hydraulic oil. The potential monitoring system comprises a constant-voltage power supply, a mesh-shaped positive electrode, a meshed-shaped negative electrode, a data transmission line, a potential measuring sheet and a fixed-value resistor disc. The pressure difference control system comprises a pressure meter, a water storage space, a communicating pipe, a pond, a communicating valve, a hand pump and an emptying valve. The potential-based spontaneous percolation measuring device is simple in structure, easy to realize, and capable of monitoring the change of saturability on all circumferential places of the core in a spontaneous percolation process over time; the potential-based spontaneous percolation measuring device is capable of measuring the change of the saturability of the core in the spontaneous percolation process over time under the condition of applying different confining pressures; the potential-based spontaneous percolation measuring device is further capable of measuring the change of the saturability of the core in a displacement process over time under the condition of applying different pressure differences to two ends of the core, and knowing parameters such as a water absorption rate, a capillary force and a water absorption quality of the core.

A manual intravenous pump includes an input line, a fluid reservoir operatively connected to the input line, and an output line operatively connected to the fluid reservoir. The manual intravenous pump further includes a manually operable actuator, configured to facilitate the flow of fluid from the input line, through the fluid reservoir, and to the output line.

The invention discloses a gravity hydraulic constant load energy storage device and a true triaxial creep experiment system. The gravity hydraulic constant load energy storage device comprises a fixed piston and a movable cylinder body, the outside of the cylinder body is provided with a carrier platform, when the carrier platform is provided with heavy objects with different weights, a hydraulic loading system is provided with constant loads of different sizes by a fluid infusion hole, and a sample is loaded by the fluid infusion hole and a line. The pressure produced by the heavy objects is balanced by a hand pump so as to supply liquid to the system and provide constant static pressure, and the constant pressure provided by the gravity hydraulic constant load energy storage device can also be changed into different pressures so as to be suitable for axial pressure and side pressure differences in a creep experiment and given pressure differences in a seepage test, thus reducing experimental cost caused by power consumption of the creep experiment.

Disclosed is a medical device which operates as a supporting splint for the treatment of orthopedic conditions. Said device is an inflatable, flexible, lightweight water-resistant splint whose measure of rigidity is easily controlled by the user. According to the present invention there are several embodiments of the splint, each suited to fit a different body part such as the limbs, the torso, the chest and the neck. Said device which is constructed of inflatable tubes is made of two nylon layers soldered together and is coated with polyurethane. The tubes may be inflated by an attachable hand pump or by other means of supplying air pressure. The present invention is especially designed to allow the normal blood circulation to the treated body part, provide ventilation to the area and enable easy inspection of an injury.

A toy balloon saber is provided. The toy balloon saber equipped with a lightening means according to the current application is comprised of a blade part that is comprised of an elastic plastic balloon, a handle part that is comprised of a hand pump, which also works as a flash light. The balloon blade is in a contracted state when not in use. When a user want to use the toy balloon saber, air is pumped into the balloon to tighten the balloon and make it stiff. The flash light is turned on when the saber is used. An air outlet is open when the blade is to be contracted. Another embodiment of the current invention is a toy balloon saber without any lightening means.

The invention discloses a prefabricated crack hydraulic fracturing, roof-cutting and pressure-relief construction method and a drilling machine. The prefabricated crack hydraulic fracturing, roof-cutting and pressure-relief construction method comprises the steps that drilled holes are constructed in a roof above coal pillars at regular intervals, and a special drill bit is adopted to construct grooves in the axial direction at regular intervals; packers and pre-opening rubber membranes are inserted, thus the grooves are located in a packing section, and openings of the rubber membranes and the grooves are aligned, then water is injected into the packing section, the packers are pressurized by a manual pump, and whether the pressure in the packing section is decreased or not or whether thewater flows out of the packing section or not is observed; and a high-pressure pump is connected for fracturing, and prefabricated crack directional hydraulic fracturing, roof-cutting and pressure-relief operation is completed. Through the implementation mode, stress of roadway surrounding rock can be effectively lowered, roadway deformation is controlled, the safety and efficiency of resource exploitation are improved, and the problems of underground secondary pollution, poor safety and high cost which are caused by a traditional blasting technology are solved.