A vacuum pump includes a hollow container that has a vacuum port and internal chamber walls. The vacuum port opens to an exterior of the container and the chamber walls define chambers that are in fluid communication with the vacuum port. There are flexible bladders disposed in the chambers. The flexible bladders include vents that open through the container to the exterior. A plunger in the container includes arms that extend into the chambers such that each of the flexible bladders is situated between one of the arms and one of the chamber walls. The plunger is moveable between a home position and an upstroke position to compress and deflate the flexible bladders via the vents and thereby change the volume of the flexible bladders. The change in the volume draws a vacuum through the vacuum port.

An inflatable air mattress system comprises an inflatable air mattress defining an air chamber and including an inlet passageway, an inflation valve mounted to the inflatable air mattress, and a connector. The valve defines a passageway that includes a lip and a valve member. The valve member includes a seal movable between a closed position wherein the valve member is at least partially covering the lip. In an open position, inflation air can pass through the passageway and into the air chamber of the mattress. The inflatable air mattress system includes an inflating bladder including an interior portion defined by at least one wall of flexible fabric having a first end and a second end. The first end includes a wide opening securable by a closing spring, the second end includes an outlet adapted to connect to the connector.

An inflatable air mattress system comprises an inflatable air mattress defining an air chamber and including an inlet passageway, an inflation valve mounted to the inflatable air mattress, and a connector. The valve defines a passageway that includes a lip and a valve member. The valve member includes a seal movable between a closed position wherein the valve member is at least partially covering the lip. In an open position, inflation air can pass through the passageway and into the air chamber of the mattress. The inflatable air mattress system includes an inflating bladder including an interior portion defined by at least one wall of flexible fabric having a first end and a second end. The first end includes a wide opening securable by a closing spring, the second end includes an outlet adapted to connect to the connector.

A self-suction tail plug includes a detachable tail plug body that has a cylindrical structure. The detachable tail plug body is disposed at a bottom of an air blower. A suction cup is disposed at a bottom of the detachable tail plug body and is configured to adsorb and fix the air blower on a surface of an object. An outer wall at a top of the detachable tail plug body is provided with a fixed protrusion ring engaged with the bottom of the air blower, and the suction cup and the air blower are hermetically connected, such that a sealing protrusion ring is circumferentially disposed on the outer wall of the detachable tail plug body, and the sealing protrusion ring is hermetically connected to the bottom of the air blower.

The hand-operated air pump is a mechanical device. The hand-operated air pump compresses atmospheric gas for use in an inflatable structure. The hand-operated air pump comprises a housing and a pump structure. The housing contains the pump structure. The housing transfers externally provisioned motive forces that are required to operate the pump structure. The pump structure compresses the atmospheric gas used in the inflatable structure. The pump structure transports the compressed atmospheric gas to the inflatable structure. The pump structure measures the pressure of atmospheric gas contained in the inflatable structure.

The hand-operated air pump is a mechanical device. The hand-operated air pump compresses atmospheric gas for use in an inflatable structure. The hand-operated air pump comprises a housing and a pump structure. The housing contains the pump structure. The housing transfers externally provisioned motive forces that are required to operate the pump structure. The pump structure compresses the atmospheric gas used in the inflatable structure. The pump structure transports the compressed atmospheric gas to the inflatable structure. The pump structure measures the pressure of atmospheric gas contained in the inflatable structure.

The invention relates to a device for coupling a tire pump to a valve of a tire and for providing a fluid flow path from said pump to said valve, comprising a pump nipple for covering said valve. The device comprises an elastic band coupled to a body of said device, said band being embodied for positioning around said tire under elastic force. A preferred embodiment comprises a set of device and at least two pump nipples for use with the device. The invention also relates to a method of inflating a tire.

An inflation pump including a body having a cylinder and a head integrally formed with the cylinder. The cylinder includes a pressurizing space. The head includes a through-hole extending along a longitudinal axis. An intercommunication passage is disposed between and intercommunicates with the through-hole and the pressurizing space. A pressurizing unit is slidably received in the pressurizing space and is reciprocally slidable relative to the body. A nozzle unit includes a pressing device disposed in the through-hole. The pressing device includes a push seat having a check ring. The check ring includes an inner side abutting against the push seat and an outer side abutting against a portion of an inner periphery of the through-hole. The portion of the inner periphery of the through-hole is located between the intercommunication passage and the coupling end. The check ring permits air to flow only from the intercommunication passage towards the coupling end.

Disclosed is a method for inflating packaging airbags. The method for inflating the airbags include the steps of coupling an inflation port of the airbag to a nozzle of the inflation system, wherein a collar of the airbag adjacent to the inflation port lies between the cushions of the inflation system, the cushions are a part of pair of clamps. Thereafter the inflation system can be turned on resulting in clasping of the collar by the pair of clamps. The air compressor of the system operates to supply air under pressure to the airbag through the air pressure regulator. Once the airbag is inflated, the inflation system can be turned off, resulting in releasing of the pair of clamps, thus releasing the airbag.

A negative-pressure source is described. The negative-pressure includes a first housing and a second housing configured to be coupled to the first housing to form a cavity. The first housing and the second housing are rotatable on a common axis relative to each other. A membrane is disposed in the cavity and sealed to the second housing to form a first chamber and a second chamber. A motor is disposed in the first chamber, and a clockwork is coupled to the motor and configured to be driven by the motor. A threaded body is disposed in the first chamber and configured to be driven by the motor. The threaded body is configured to rotate on the common axis and to displace the membrane in response to rotation on the common axis.