An inflatable cold-weather upper-body garment. The garment includes first and second pluralities of interconnected gas flow chambers, each plurality enclosed by gas-impermeable material; a fluid-flow channel connecting the first and second pluralities of gas flow chambers; and a hand-operable air pump in fluid communication with one of the gas flow chambers.

An inflatable cold-weather upper-body garment. The garment includes first and second pluralities of interconnected gas flow chambers, each plurality enclosed by gas-impermeable material; a fluid-flow channel connecting the first and second pluralities of gas flow chambers; and a hand-operable air pump in fluid communication with one of the gas flow chambers.

An inflatable cold-weather upper-body garment. The garment includes first and second pluralities of interconnected gas flow chambers, each plurality enclosed by gas-impermeable material; a fluid-flow channel connecting the first and second pluralities of gas flow chambers; and a hand-operable air pump in fluid communication with one of the gas flow chambers.

The present invention relates to a pumping system to generate a vacuum (SP), comprising a main vacuum pump which is a claw pump (3) having a gas suction inlet (2) connected to a vacuum chamber (1) and a gas discharge outlet (4) leading into a gas evacuation conduit (5) in the direction of a gas exhaust outlet (8) outside the pumping system. The pumping system comprises a non-return valve (6) positioned between the gas discharge outlet (4) and the gas exhaust outlet (8), and an auxiliary vacuum pump (7) connected in parallel to the non-return valve. In a pumping method by means of this pumping system (SP), the main vacuum pump (3) is started up in order to pump the gases contained in the vacuum chamber (1) and to discharge these gases through its gas discharge outlet (4), simultaneously to which the auxiliary vacuum pump (7) is started up. Moreover the auxiliary vacuum pump (7) continues to pump all the while that the main vacuum pump (3) pumps the gases contained in the vacuum chamber (1) and/or all the while that the main vacuum pump (3) maintains a defined pressure in the vacuum chamber (1).

There is disclosed a balloon holder for holding a balloon having a tail and a tapered self-closing bladder. The balloon holder comprises a main body having a tail locking mechanism, an elongated member protruding from a bottom extremity of the main body, a support element configured to slide over the elongated member and be positioned on the main body, and a position adjustment mechanism for adjusting the position of the support element on the main body. In use, the tail of the balloon is secured to the main body by the tail locking mechanism and the support element is slid over the elongated member and positioned on the main body using the position adjustment mechanism so as to support the balloon in an upright position.

A pressure device includes a bag-shaped compression bag, a cover member installed at a first surface portion of the compression bag, an accommodating space defined by the cover member and the compression bag, a piezoelectric pump that flows air into the compression bag, and a casing that accommodates the piezoelectric pump. The compression bag has a bag opening formed at a second surface portion different from the first surface portion and connecting an internal space of the compression bag and an outside to each other. The casing has a casing opening. The casing (31) is fixed to the second surface portion of the compression bag while being in contact with the second surface portion to directly connect the bag opening and the casing opening to each other in an overlapping manner.

An inflating device comprises a valve body and a gasbag, the valve body being provided with a gas inlet, a gas outlet and a gas storage chamber; the gas inlet has a gas intake valve device provided therein, and the gas outlet has a gas exhaust valve device provided therein; the gas storage chamber is communicated with the gasbag; and the gas inlet is communicated with the gas outlet through a chamber body of the valve body, and the gas storage chamber is communicated with the chamber body. In the invention, gas can be fed into an inflatable product by continually pressing with hands, without requiring electricity or blowing with mouth. The inflating device of the invention is convenient to operate, clean and sanitary. The inflating device of the invention has a small volume and is thus convenient to carry.

An inflating device comprises a valve body and a gasbag, the valve body being provided with a gas inlet, a gas outlet and a gas storage chamber; the gas inlet has a gas intake valve device provided therein, and the gas outlet has a gas exhaust valve device provided therein; the gas storage chamber is communicated with the gasbag; and the gas inlet is communicated with the gas outlet through a chamber body of the valve body, and the gas storage chamber is communicated with the chamber body. In the invention, gas can be fed into an inflatable product by continually pressing with hands, without requiring electricity or blowing with mouth. The inflating device of the invention is convenient to operate, clean and sanitary. The inflating device of the invention has a small volume and is thus convenient to carry.

The present invention relates to a pumping system to generate a vacuum (SP), comprising a main vacuum pump which is a claw pump (3) having a gas suction inlet (2) connected to a vacuum chamber (1) and a gas discharge outlet (4) leading into a gas evacuation conduit (5) in the direction of a gas exhaust outlet (8) outside the pumping system. The pumping system comprises a non-return valve (6) positioned between the gas discharge outlet (4) and the gas exhaust outlet (8), and an auxiliary vacuum pump (7) connected in parallel to the non-return valve. In a pumping method by means of this pumping system (SP), the main vacuum pump (3) is started up in order to pump the gases contained in the vacuum chamber (1) and to discharge these gases through its gas discharge outlet (4), simultaneously to which the auxiliary vacuum pump (7) is started up. Moreover the auxiliary vacuum pump (7) continues to pump all the while that the main vacuum pump (3) pumps the gases contained in the vacuum chamber (1) and/or all the while that the main vacuum pump (3) maintains a defined pressure in the vacuum chamber (1).

An air bag assembly includes an air bag having a first hole, a suction pump, a rotary cover and a first check valve. A pump body of the suction pump is deformable and provided with a second air hole. The rotary cover includes an air outlet communicating with the second air hole. A convex part and a concave part of the rotary cover are configured to engage with a concave portion and a convex portion of the pump body, respectively. The first check valve allows air to enter into the interior of the pump body from the interior of the air bag through the first air hole. The air bag can be pumped by rotating the rotary cover. The air bag assembly has advantages of simple operation, small volume and low requirement on operating space, and capable of being assembled on other objects, which is convenient to use and carry.