Abstract:
A vacuum breaker valve includes a valve body and a vacuum breaking device mounted in the valve body. The valve body has a periphery provided with multiple air vent holes corresponding to the vacuum breaking device. The vacuum breaking device includes a mounting barrel, an elastic member, a braking member, a mounting plate, a water stop gasket, and a water inlet disk. The vacuum breaking device is assembled previously and then directly fitted into the valve body to construct the vacuum breaker valve. Thus, the vacuum breaking device and the valve body are combined together for a whole sale or the vacuum breaking device and the valve body are sold individually.
Abstract:
A cart includes a first side board and a second side board. Each of the first and second side boards has first holes and second holes respectively defined in the upper and lower portions thereof. A first rod unit and a second rod unit are respectively connected to the first holes and the second holes of the first and second side boards. At least two shelves are movably mounted on the first and second rod units between the first and second side boards. A first wheel unit and a second wheel unit are respectively connected to the second holes at the front side and the rear side of the body so as to assemble the cart. The diameter of the second wheel unit is larger than that of the first wheel unit. The cart is light and suitable to move on an uneven surface.
Abstract:
A diagnostic device includes a body with a circuit board located therein. The body includes a display screen and a function button unit located on the outside thereof. A connection port and an insertion hole are respectively located to the body. An information cassette is inserted in the insertion hole and electrically connected to the circuit board. A cable unit has a first end and a second end, wherein the first end of the cable unit is connected to the connection port, and the second end of the cable unit is connected to a power source and an output port of a cleaning device which is connected to the throttle valve. When the diagnostic device detects abnormal information of the throttle valve via the cable unit, the display screen displays the abnormal information, the cleaning device cleans the throttle valve. The diagnostic device diagnoses the throttle valve afterward.
Abstract:
A cart includes a first side board and a second side board. Each of the first and second side boards has first holes and second holes respectively defined in the upper and lower portions thereof A first rod unit and a second rod unit are respectively connected to the first holes and the second holes of the first and second side boards. At least two shelves are movably mounted on the first and second rod units between the first and second side boards. A first wheel unit and a second wheel unit are respectively connected to the second holes at the front side and the rear side of the body so as to assemble the cart. The diameter of the second wheel unit is larger than that of the first wheel unit. The cart is light and suitable to move on an uneven surface.
Abstract:
Optical waveguides using segmented periodically-spaced high contrast gratings bounding a hollow core propagation region on at least two sides. Incident light is received in a hollow waveguide (HW) region (core) between opposing HCG faces which provide lateral confinement in response to glancing reflections of the incident light beam from high refractive index segments of the HCG as it traverses the core. Embodiments are described for planar waveguides (1D) having a planar core between two planar HCGs, as well as 2D waveguides, such as having rectangular segments of the HCG through which light is propagated. Additionally, other configurations of HCG-HW, including those having arbitrary incidence and azimuth, angled HCG segments, propagation in a direction which is transverse, or alternatively parallel, to the segments of the HCG.
Abstract:
A vertical cavity surface emitting laser (VCSEL) is described using a sub-wavelength grating (SWG) structure that has a very broad reflection spectrum and very high reflectivity. The grating comprises segments of high and low refractive index materials with an index differential between the high and low index materials. By way of example, a SWG reflective structure is disposed over a low index cavity region and above another reflective layer (either SWG or DBR). In one embodiment, the SWG structure is movable, such as according to MEMS techniques, in relation to the opposing reflector to provide wavelength selective tuning. The SWG-VCSEL design is scalable to form the optical cavities for a range of SWG-VCSELs at different wavelengths, and wavelength ranges.
Abstract:
A cable of easy collection includes multiple hardened sections and multiple soft sections. Each of the soft sections is disposed between each two hardened sections so that the hardened sections can overlap with each other.
Abstract:
The invention relates to a computer system capable of automatically duplicating data into discs with automatically blank-disc-supplying. The invention can be implemented by software, hardware, or any of the combinations. Since the invention does not utilize a mechanical arm to move the discs, the structure of the invention saves space compared with a traditional disc duplicating machine; moreover, the cost is less than that of the prior art.
Abstract:
A storage container having a cover and a disc base is disclosed. The storage container is used for storing information storage media. The cover of the storage container has a locking element used to wrappedly engage a locking mechanism positioned on the disc base. When the locking mechanism is engaged in the locking element, the storage container is securely locked. In order to separate the cover and the disc base, the connecting part has to be broken. Accordingly, the storage container is lockable and prevents the information storage media disposed therein from being stolen.