Abstract:
The present invention is a self-acting valve, and it may specifically be used for air mattresses. This self-acting valve consists of a housing, a membrane and a base. After a quick inflation, the elastic airtight membrane positioned within the housing reverts to its original shape and instantly shuts off the outlets, which prevents air from leaking out. This valve is able to operate automatically to form a perfect airtight seal. The structure of this valve is simple, reliable, and practical, which makes it a new type of self-acting valve for an air mattress.
Abstract:
A remote pressure-controlled three-way valve device has a plunger axially traversed by an inlet passage normally closed by a spring-urged inlet valve. The plunger's outer sidewall has a recess in which an O-ring extends to abut against the steps of the recess to limit the plunger stroke and keep an outlet passage closed to a venting port formed in the sidewall of the body of the device. O-ring prevents short-circuits between the inlet passage and the vent port and a spring for counteracting friction between the O-ring and the device inner wall. Filters arranged in respective ports connectable to the input air-pressure supply and the tire inner tube provide fixed seats for the springs to bear on. The plunger may dwell in a stable intermediate position that opens the outlet or deflation passage is controlled by sending an air pressure through the inlet port at 50% of the normal pressure.
Abstract:
A valve coupler for a quick inflation device includes a sleeve having a longitudinal passage. A sealing member is mounted in a first end of the sleeve. The first end of the sleeve further includes a shoulder formed on an outer periphery thereof. A first jacket is mounted around the first end of the sleeve. The first jacket includes a first end bearing against the shoulder of the sleeve. The first jacket further includes a second end extended beyond the first end of the sleeve. A second jacket includes outer threading on an end thereof for engaging with inner threading of the first jacket. The inner threading of the first jacket and the outer threading of the second jacket are fixed together. The end of the second jacket includes an end face that encloses the sealing member. The sleeve is not moved when the valve coupler is engaged with a tire valve for inflation, thereby preventing damage to the sealing member.
Abstract:
A pumping device includes a main body having a passage defined therein through which air passes, a head, and a pivotal switch member. The pivotal switch member includes a hollow cam seat rotatably received in a first end of the head. The pivotal switch member further includes a lever extending from the cam seat to move therewith. A second end of the head is communicated with the passage. The cam seat includes a central rotating axis relative to the first end of the head. The cam seat further includes a first side with a first opening and a second side with a second opening communicated with the first opening. A distance from the central rotating axis of the cam seat to the first side is smaller than a distance from the central rotating axis of the cam seat to the second side. A retainer is slidably received in the head and includes a first compartment therein. A second end of the retainer includes a conical recess defined therein. A spring is mounted in the first compartment. A nozzle is slidably mounted in the second end of the retainer and includes an end attached to the spring. A pin is slidably mounted in the retainer and includes a first end extended beyond a first end of the retainer and a second end secured to the nozzle to slide therewith. The second opening of the cam seat is sized to prevent the first end of the pin from passing through the second opening, and the first opening of the cam seat is sized to allow the first end of the pin to pass through. A nozzle head is securely mounted in the second end of the head and includes a second compartment communicated with the first compartment via the nozzle. The nozzle head includes a hollow conical section for engaging with the conical recess of the retainer.
Abstract:
A universal valve connector for valves of vehicle tires comprises a connector housing, partly connected to a pressure source, preferably a hand or foot pump, and has a coupling hole with a diameter corresponding to the diameter of the valve for connection, where the coupling hole has securing means, plus a sealing means against various valve sizes. The sealing means is mounted coaxially in the connector housing and established on at least two parallel levels, having the centre line of the connector housing, where the minor diameters of the sealing means correspond to the major diameter of the valve, where the connector is mounted when used. The sealing means, closest to the coupling hole in the connector housing has the biggest minor diameter, while the sealing means farthest from the coupling hole has the smallest minor diameter, and diameters between the extremes correspond to distance between these extremes.
Abstract:
A valve stem and cap apparatus includes a valve stem having a base for attachment to a rim and a tubular sleeve extending upwardly from the base, the sleeve defining an open end. A stem valve is positioned in the sleeve for regulating air flow therethrough. A pair of resilient flanges are positioned on an outer surface of the sleeve adjacent the open end. The apparatus includes a cap having a cylindrical configuration with an open end for selectively covering the open end of the sleeve. The cap defines a pair of oppositely disposed apertures for releasably engaging respective resilient flanges in a snap-fit relationship when the cap is positioned to cover the open end of the sleeve and appropriately rotated.
Abstract:
By a universal valve connector for inflation valves of vehicle types (Sclaverand, Dunlop-Woods, or Schrader), whose connector consists of a connector housing (368), which partly is connected to a pressure source, preferably a hand or foot pump, and which partly has a coupling hold (5) with a diameter corresponding to the diameter of the valve, which is to be connected, where the coupling hole is equipped with a securing means for securing on the valve, plus a sealing means against valves of different sizes. This is achieved by the sealing means (366) being mounted coaxially in the connector housing (368) and being established on at least two parallel, separate levels, having the centre line (4) of the connector housing (368), which is coaxial to the centre line of the valve, as its normal, where the minor diameters of the sealing means approximately correspond to the major diameter of the current valve dimensions, on which the connector is mounted when used, that the sealing means (366), closest to the opening (8) of the coupling hole (5) in the connector housing (368) has the biggest minor diameter, while the sealing means (366) farthest from the opening (8) of the coupling hole in the connector housing (368) has the smallest minor diameter, and diameters between the extremes are lying corresponding separate distance between these extremes. The valve connector has the possibility of automatically adjust itself to the valve in question and if needed to activate the central core of a Schrader valve. Also, it is possible to use the connector with existing pumps.
Abstract:
An air pump nozzle has a receiving compartment with an open end where a handle is pivoted. The receiving compartment is provided at other end thereof with a holding mouth involuting a large diametric end of fish-eye through hole of an elastic holding member which is pressed against by a press member having a receiving hole in which a pushing member and a valve urging member are disposed. In operation, the inflation valve of the U.S. type is received in the through hole of the holding member. The handle is swiveled to force the pushing member to actuate the press member to press the holding member to deform so as to hold securely the inflation valve. The inflation valve is opened up by the valve urging rod which is pushed by the pushing member. The inflation valve of the French type passes the holding member to push the valve urging rod to a stop point. The holding member is deformed to hold securely the inflation valve which is opened up by the valve urging rod which is pushed by the pushing member. As the inflation valve is disengaged, the pushing member and the valve urging rod are forced back to their original positions by an elastic member and a magnetic member.
Abstract:
The present invention relates to a multiple-purposed air valve component for air mattress. The air valve is designed mainly for rapid injection and release of air for the air mattress. This invention can be incorporated with electric exhaust (intake) fan for rapid injection and release of air. In particular, the present invention is the first device of which the air valve can be opened and closed by winding, thereby ensures the correct motion. When it is switched to the release position, the air inside the mattress will be released rapidly to facilitate the execution of CPR. The additional function of automatic pressure release makes this device a practical and innovating one.
Abstract:
An air valve connection head is designed to work with an inflation device comprising an air storage bottle in which the compressed air is kept. The air valve connection head comprises a housing which is provided with a receiving compartment, an elastic annular block disposed in the receiving compartment, and a press member disposed in the receiving compartment such that the press member urges the annular block. The housing is further provided with an insertion hole and an air hole extending from the insertion hole to the receiving compartment. A valve member is movably disposed in the insertion hole for obstructing the air hole. A handle is pivoted to the housing such that the handle is swiveled to push the press member to cause the elastic annular block to deform to lash the air valve of an inflatable object. As the press member is pushed to displace, an inclined plane of the press member extends into the receiving compartment to push back the valve member so as to relieve the air hole of being obstructed by the valve member.