Abstract: An oil pipe female coupler includes a body, a sealing member, and an oil seal. The body includes a flange having an upwardly projecting annular wall. The sealing member includes an inner annular wall defining a receiving portion, an outer annular wall surrounding the inner annular wall, and a receiving groove between the inner annular wall and the outer annular wall. The oil seal includes an annular ring having a through-hole, an annular wing connected to the annular ring, and an annular block connected to the annular wing. Top and bottom faces of the annular wing tightly abut a bottom face of the inner annular wall of the sealing member and a top face of the second protrusion, respectively. An inner wall face of the annular block tightly abuts an outer wall face of the inner annular wall of the sealing member. A leakage prevention effect is reliably provided.

Abstract: A flashlight includes a barrel, a connecting member, a seat, and an end cap. The connecting member is mounted to a bottom end of the barrel and allows the barrel to move to a desired angle relative to the connecting member. The seat includes a larger chamber, and two smaller chambers. A front leg is slidably mounted in the larger chamber and movable between a retracted position in the larger chamber and an extended position outside the larger chamber. A side leg is mounted in each smaller chamber and pivotable between a retracted position in an associated smaller chamber and an extended position outside the associated smaller chamber.

Abstract: A female coupler for a fueling structure includes a body, an oil seal with an annular wing, and a sealing member. A flange is formed on an inner periphery of the body and located adjacent to an open end of the body. An annular wall projects from a bottom wall of the sealing member. The oil seal is mounted inside the annular wall and includes an annular wing on a face thereof. The annular wing includes a top face and a bottom face. The top face and the bottom face of the oil seal are respectively pressed against by the annular wall of the sealing member and the flange of the body. A whole annular face of the open end of the body and the bottom wall of the sealing member are welded together by ultrasonic welding, providing dual leakage prevention.

Abstract: A flashlight comprises a barrel, a lamp shield assembly, and a lamp seat assembly. The lamp seat assembly includes a lamp seat, a movable seat, and a lamp mounted on the movable seat. The position of the movable seat in the lamp seat can be adjusted to locate the filament of the lamp in the focus of the reflective member of the lamp shield assembly so that the light beams emitted from the lamp can travel a long distance.

Abstract: A push-type flashlight comprises a barrel, a lamp shield assembly, a lamp seat assembly, and a switch device. The lamp shield assembly comprises a waterproof sleeve for threadedly and tightly engaging with a reflective member and thus retaining the reflective member in the lamp shield. The switch device comprises a pusher cap that is threadedly and tightly engaged with an insulating sleeve in the switch member. O-rings are respectively mounted to an upper end and a lower end of an outer periphery of the barrel to thereby provide the required pressure-tight and waterproof effects.

Abstract: A flashlight includes a barrel for receiving a battery unit therein, a bulb mounted in the barrel, a transparent housing threadedly engaged with a front end of the barrel, a reflective mirror mounted in the housing to move therewith, and a rear cap mounted to seal a rear end of the barrel. An outer casing is threadedly engaged around the housing such that rotational movement of the housing causes movements of the housing and the reflective mirror relative to the bulb to thereby place the bulb in a position either surrounded or not surrounded by the reflective mirror. A colored sleeve is removably mounted between the bulb and the housing.

Abstract: A flash-light has a light-shell, a cylinder, a bottom cover which can be screwed to touch the bottom side of the cylinder, thus, the circuit of the bulb can be easily controlled.

Abstract: A warning & lighting flash light has a cylindrical tube, a rear lid and a front cap which can adjustably be rotated around the tube to move back and forth in such a distance to make the light of the lamp to be reflected forward by the mirror provided at the front cap to function as a lighting flash light or to shoot through the light passing portion covered with a filter to function as a warning one.