Abstract: A heating device for a coffee maker having a water tank and a coupled pipe is provided. The pipe includes a cold-water supply section, a first heating section, a first hot-water supply section, a second auxiliary heating section, and a second hot-water supply section having an outlet. The heating device includes a first heating element contacting the first heating section and a second heating element contacting the second auxiliary heating section. Water flowing through the pipe is sequentially heated by the first and second heating elements. Thus, a temperature of water leaving the outlet can be kept at an acceptably high level.

Abstract: A valve assembly for limiting the flow of fluid into and out of a chamber, consisting of: a valve seat in a wall of the chamber, wherein fluid flows into and out of the chamber through the valve seat; a valve face engaging the valve scat, wherein the valve face is external to the chamber; and a mechanism for moving the valve face toward and away from the valve seat wherein the valve face is substantially removed from the path of fluid flow through the valve seat when the valve face is moved away from the valve seat.

Abstract: A plurality of polypropylene wickers are made of a polypropylene film. The polypropylene film passes through a chill roller to decrease a temperature of the polypropylene film, and a cutting roller having a plurality of cutting blades to cut the polypropylene film into a plurality of polypropylene bands. Each of the polypropylene bands passes through a U-shaped mold roller set and a folding mold, the folding mold folding the corresponding polypropylene band into three layers, a folding roller folding the corresponding polypropylene band completely to form a polypropylene woven yarn, and the polypropylene woven yarn passing through an extension molding roller set and a setting roller set.

Abstract: A cosmetic powder case includes a case body having a lip wall. The lip wall has a position slot at interior side thereof and an order slot at exterior side thereof. The order slot has a locking slot thereon. A separate disk has an axial hole at central, channel portions around the axial hole, and a lock sidewall at the edge thereof which has position flange at exterior side thereof and a ring slot at interior side thereof. The ring slot has position blocks therein. A rotatable disk has an axial rod at bottom side thereof, channels located around the axial rod, and an L-shaped lock flange extended from the edge thereof. The lock flange has a ring rib at distal end of interior side thereof, and a puff has a band thereon for facilitating user to grip.

Abstract: A combination floor pad includes at least one base pad, and a plurality of composite base boards fixed on the base pad. Thus, the base boards can be securely locked in the base pad rigidly and stably, thereby preventing the base boards from being detached or loosened from the base pad. In addition, the base boards can be closely secured by the side ribs and the positioning ribs, so that dirt or dust is not deposited between the base boards easily, thereby facilitating the user cleaning the base boards.

Abstract: A retractable/folding collapsible wrench is constructed to include a hollow handle, which can be made folding collapsible, two driving devices respectively moved in and out of the ends of the hollow handle between the extended position and the received position, and positioning means respectively mounted in the ends of the handle and adapted for securing the driving devices in one of a series of positions.

Abstract: A bi-directional ratchet wrench is constructed to include a wrench body having a box at one end, an annular ratchet wheel mounted in the box of the wrench body, a toothed stop member mounted in the box and meshed with the ratchet wheel, the ratchet wheel having an inside locating groove extended around an inside wall thereof and dividing the axially extended center through hole thereof into two coupling portions adapted for selectively coupling to the workpiece to be rotated, and a baffle plate axially slidably mounted in the inside locating groove of the ratchet wheel and adapted for holding down the workpiece to be rotated.

Abstract: A hand tool angle adjustment structure includes a handle having a substantially U-shaped front coupling portion with a through hole and a screw hole at two sides, a work head, the work head having a flat, circular coupling portion extended from a rear side thereof and coupled to the U-shaped front coupling portion of the handle and a mounting hole extended through two opposite lateral sides of the coupling portion, and a lock bolt inserted through the through hole of the handle and the mounting hole of the work head and threaded into the screw hole of the handle to secure the work head to the handle for enabling the work head to be tilted leftwards/rightwards or turned forwards/backwards within a limited angle.

Abstract: A tubular doorknob includes an inside bracket, an outside bracket and adjustment devices. The outside bracket has two connecting wings, two outside passages, two outside screw holes and an outside adjustment device. The connecting wings protrude from diametrically opposite sides of the outside bracket. The outside passages are defined through the connecting wings. The outside screw holes are defined through the outside bracket and communicate with the outside passages. The outside adjustment device has two sliding blocks and two adjustment screws. The sliding blocks are slidably mounted in the outside passages. The adjustment screws are screwed into the outside screw holes to push the sliding blocks to abut a surface in a doorknob hole in the door. The inside bracket has a configuration similar the outside adjustment device. The extended adjustment devices firmly hold the tubular doorknob in the doorknob hole.

Abstract: A mobile rack for hard disk drive has a removable cartridge with guiding rails, a pull back spring, a pivot block, a mounting bracket, and a driver door held by a pivot block. The driver door is set in with two base blocks, wherein each block contains a slider, wherein each slider is attached to a sliding plate for fitting against the corresponding sliding rails in the base block. Each slider has a latching pin extending out from the lateral side of the driver door to lock in the mobile rack. The pair of sliders is used to release the latching pins from the mounting bracket. When the driver door is opened outward, tension applied on the pull back spring automatically forces out the removable cartridge from the mounting bracket to make it easier to remove the hard disk drive from the computer.