Abstract:
A unit mask is extended in a direction and is supported by a frame including an opening. The unit mask includes a first fixed part located in the opening and fixed to one surface of the frame disposed in the direction, a second fixed part spaced apart from the first fixed part and fixed to another surface of the frame disposed in the direction, and a mask part held by the first fixed part and the second fixed part between the first fixed part and the second fixed part.
Abstract:
Fast acting airpowered water displays which may be computer controlled to operate over a wide range of duration and timings and methods of operating the same are disclosed. The water displays are comprised of one or more nozzles directed upward, typically just above or just below the water level in a fountain pool. Each nozzle is connected to a water reservoir submerged, at least in part, in a fountain pool and coupled adjacent the bottom of the reservoir to the inlet for the nozzle. The water reservoir, which may be in the form of a pipe of a substantial diameter, is also coupled to a check valve submerged in the fountain pool to allow water to refill the reservoir but to prevent water from escaping therefrom through the check valve. A solenoid valve controllably connects the upper portion of the water reservoir to a supply of air under pressure. The solenoid valve is operative between a first condition coupling the supply of air under pressure to the upper portion of the water reservoir, and a second condition venting the upper portion of the reservoir to the atmosphere. This arrangement allows operation of the water display in various ways ranging from short repetitive bursts of water up to an explusion of all the water in the reservoir in a single burst. Various features and alternate embodiments, including computer control, are disclosed.
Abstract:
A rail is designed to form a frame to which a stencil shall be secured in position. The frame complete with stencil secured in position is then being used in a screen printing machine. The rail is made from hollow-section profile. One of the walls of the profile is formed with a projection. The projection exhibits surfaces which face away from each other and which are designed to operate in conjunction with a holding device for the frame.The frame is also designed in such a way that it can operate in conjunction with a second holding device.
Abstract:
A method of printing solder paste in a component board and a stencil set for doing the same are disclosed. In one embodiment, the method includes using a first stencil having a first thickness to print solder paste into at least one through hole in the component board. The method further includes using a second stencil having a second thickness to print solder paste for at least one surface mounted part on the component board, subsequent to using the first stencil.
Abstract:
A method of printing solder paste in a component board and a stencil set for doing the same are disclosed. In one embodiment, the method includes using a first stencil having a first thickness to print solder paste into at least one through hole in the component board. The method further includes using a second stencil having a second thickness to print solder paste for at least one surface mounted part on the component board, subsequent to using the first stencil.
Abstract:
A clamp configured to clamp an end of a unit mask supported while a tensile force is applied to the unit mask includes a clamp main body, and a rotation contact portion rotatably supported by the clamp main body and directly contacting the end of the unit mask.
Abstract:
A clamp configured to clamp an end of a unit mask supported while a tensile force is applied to the unit mask includes a clamp main body, and a rotation contact portion rotatably supported by the clamp main body and directly contacting the end of the unit mask.
Abstract:
A fountain flows with multiple fluidic materials. The fountain has a basin, multiple augers, a tubular housing for the augers and tiers, all configured so that the multiple fluidic materials flow through the fountain without mixing. The basin and tiers preferably have dividers to prevent the multiple fluidic materials from mixing. The fountain is suitable for home as well as commercial use.