Abstract: The present invention provides a reclosable plastic bag including: a first film and a second film of which both sides and lower sides adhere to each other and the combined upper side is open; a zipper including a first zipper and a second zipper that are provided on the insides of the upper sides of the first film and second film and engaged with each other; a slider engaging the first zipper with the second zipper, sliding on the zipper; and end stops of which both ends are formed in flange shapes and that each have a through-hole at the center to prevent the slider from separating from the ends of the zipper by being fitted in insertion holes formed through the first film and the second film.

Abstract: A handheld vacuum suction device includes: an exterior case; a cap that includes a suction nozzle; a pressure switch unit that includes a pressure switch having a slide body configured to descend against a spring when a pressure in the cap falls below a predetermined pressure, to thereby cut off power supply, and a vertical through suction duct; a vacuum pump that includes an inlet port connected to the suction duct and sucks in air; and a control that includes an actuating switch, and is electrically connected to the vacuum pump and the pressure switch to control the actuation of the vacuum pump.

Abstract: A vacuum packaging apparatus includes a main body including a vacuum pump; and a chamber-forming part disposed in the main body and having a lower chamber body, an upper chamber body that is disposed over the lower chamber body, a chamber that is formed between the upper chamber body and the lower chamber body. The chamber includes a rear side that is configured to open when the upper chamber body covers the lower chamber body. The chamber also includes a foldable member that is configured to close the rear side of the chamber and couple the upper chamber body to the lower chamber body such that the upper chamber body pivots to the lower chamber body, the foldable member having an intake coupled to the vacuum pump.

Abstract: A vacuum packaging apparatus includes a main body including a vacuum pump; a chamber body provided in the main body and having a chamber, the chamber body having a packaging bag insertion at a front of the chamber body and a predetermined space at a rear portion of the chamber body, and an intake coupled to the vacuum pump; and a chamber cover that is configured to close the packaging bag insertion of the chamber body.

Abstract: The present invention relates to a diaphragm-type vacuum pump that is compact in size and manufactured at low cost and includes an inclined pin that is radially spaced at a predetermined distance from the rotational center of a motor and turns around the rotational center, a rolling plate that is connected with the inclined pin and eccentrically shakes up and down, and a three-point diaphragm that is combined with the rolling plate and changes the internal volume by eccentrically shaking up and down, in which vacuum pumping is applied by repeating intake and exhaust of air according to changes in the internal volume of the three-point diaphragm.

Abstract: A method of producing a vacuum packaging film that has one or more air channels includes longitudinally cutting a sheet to form one or more channels by using a plurality of ring knives that are arranged at intervals from each other. A border sheet is provided while an exhaustion sheet is removed. The border sheet is layered on a side of a supply film. The border sheet and the supply film are provided to a layering roller. The border sheet and the supply film are laminated by using the layering roller to form a border part of the air channel.