54results about How to "Similar in size" patented technology

A transparent anti-reflective article includes a transparent substrate having a first refractive index and a first surface. An anti-reflective layer is formed within the first surface of the transparent substrate through use of one of nanosphere lithography, deep ultra-violet photolithography, electron beam lithography, and nano-imprinting. The anti-reflective layer includes a subwavelength nano-structured second surface including a plurality of protuberances. Such protuberances have a predetermined maximum distance between adjacent protuberances and a predetermined height for a given wavelength such that the anti-reflective layer includes a second refractive index lower than the first refractive index to minimize light diffraction and random scattering therethrough. The predetermined height is approximately equal to a quarter of the given wavelength divided by the second refractive index.

The invention discloses an automobile power back door driving mechanism. The automobile power back door driving mechanism comprises a motor sleeve, a micro motor positioned in the motor sleeve, a planetary reducer, a screw rod sleeve, a multihead screw rod positioned in the screw rod sleeve, a nut sleeve, a multihead nut poisoned in the nut sleeve, wherein the multihead nut and multihead screw rod form a feed screw nut pair; a spring is sleeved outside the multihead screw rod and multihead nut; and the multihead screw rod is driven by the micro motor to drive the multihead nut to move relative to the multihead screw rod and the nut sleeve moves relative to the screw rod sleeve simultaneously. The mechanism has a simple and compact structure and small size, can be electrically started and closed when being energized, can extend and retract by manually driving the spring when not being energized and can realize free switching between motor operation and manual operation without any clutch.

Two part laparoscopic tools and surgical methods using such tools are presented. The tools and methods enable use of multiple surgical tools each having wide tool heads to be used in a body cavity using a single wide trocar and one or more narrow incisions, thereby reducing surgical risk and enhancing patient comfort and shortening recovery time. Additional instruments for facilitating laparoscopic surgery are also presented.

The present invention provides a wafer level chip size package having cavities within which micro-machined parts are free to move, allowing access to electrical contacts, and optimized for device performance. Also a method for fabricating a wafer level chip size package for MEMS devices is disclosed. This packaging method provides a well packed device with the size much closely to the original one, making it possible to package the whole wafer at the same time and therefore, saves the cost and cycle time.

The invention discloses a multi-DoF (Degree of Freedom) surgical instrument for minimally-invasive surgery. The multi-DoF surgical instrument comprises a handheld part, a power drive part, a thin connecting rod, a tail end execution part and a control system, wherein the power drive part is fixedly connected with the handheld part, the thin connecting rod is fixedly connected with the power drive part, the tail end execution part is connected with the thin connecting rod, and the control system controls the motion of the power drive part; both the handheld part and the power drive part are connected with the control system through lines, encoders at joints can be driven to move through the motion of the handheld part and acquire motion information of corresponding joints, then, the motion information is fed back to the control system, and the power drive part receives signals from the control system and then drives the tail end execution part to complete pitching, deflecting and gripping action. The multi-DoF surgical instrument has four degrees of freedom, namely pitching, deflecting, gripping and revolving and has relatively high dexterity degree, the quality of surgery can be effectively improved, the efficiency of surgery can be effectively increased, and the structure is small and compact.

A lighted display assembly for an appliance includes interchangeable display screens. Multiple light sources flash, turn on and turn off to indicate a status of the appliance by illuminating a selected one of the display screens. A display grid extends between the light sources and the selected display screen and defines light passages that are each uniquely associated with a corresponding light source. Light emitted by each light source is confined to a discrete area of the display screen by the corresponding light passage. The discrete areas of the interchangeable display screens may include any of a variety of markings, for example, markings in a different language. The assemblies may be tailored to the needs of a particular customer by selecting an appropriate display screen.

The invention relates to a method of watermarking a binary stream resulting from the encoding of a set of coefficients comprising at least one coefficient encoded by predictive coding, called predictively coded coefficient. The method comprises the steps of:

• • a) identifying, in the binary stream, a first binary word representing the predictively coded coefficient;
  • b) computing a modified coefficient from the predictively coded coefficient on the basis of at least one watermarking bit;
  • c) encoding the modified coefficient into a second binary word; and
  • d) replacing in the binary stream the first binary word with the second binary word.

The invention relates to an anti-interference direct current resistance testing device, which adopts the structure that a direct current, constant voltage and constant current source is connected with an impedance matching unit; the impedance matching unit and a data testing and calculating unit are respectively connected with a standard resistance and measured resistance sampling unit, a relay test action unit and an interference voltage detecting unit; the data test calculating unit is connected with a display unit; the display unit is connected with a keyboard and an over-voltage protection unit; and the keyboard and the over-voltage protection unit are connected with a storage and printing unit. The device can meet the requirements of achieving smooth and accurate test of direct current resistance under the condition of a 350V relative interference voltage or a 100V interphase interference voltage.

A series of devices that allow for embedding of an image as a background while also affording the user the ability to write and print on the surface, with erasable capabilities, thus providing a multifunctional product for use in numerous industries. The devices are manufactured from predominately corrugated plastic. In one embodiment a one piece, removably attachable, cabinet system and graphic display system. In an additional embodiment, a writable board, or peg board comprising a front panel and a rear panel wherein the panels are interconnected by parallel rows, or corrugations, these panels include a writable and erasable surface. The present invention relates to assemblies of corrugated systems to better serve personal, business, and educational needs.

A pneumatically operated gas valve includes a piston positioned in a cylinder with one closed end so that the piston may seat against a gas outlet to close the gas valve. A control reservoir may be formed in the cylinder between the piston and the closed end of the cylinder. Means for filling the control reservoir with gas to a control pressure may be provided so that the control pressure acting against the piston may close the gas valve. A release valve may be opened to allow the gas in the control reservoir to escape through an exhaust port to open the gas valve.

A dog collar comprises a flexible non-metallic cord component having first and second ends and comprising an inner cord surrounded at least in part by an outer cord sheath. A fastening mechanism is provided and has a band defining a space at the first end of the cord component and a fastening bar at the second end of the cord component. The fastening bar has an aperture therein for receiving the first or second end of the flexible non-metallic cord, and the aperture is of sufficient size and dimension to permit easy pivotable or rotational movement of the first or second end therein. The fastening bar and band are dimensioned such that the fastening bar is able to pass through the space in one orientation and not able to pass through the space when in other orientations.

A pneumatically operated gas valve mounted on a vessel containing pressurized gas. The gas valve includes a piston positioned in a cylinder with one closed end so that the piston seats against a gas outlet to close the gas valve. A control reservoir is formed in the cylinder between the piston and the closed end of the cylinder. Upon filling vessel, some of the pressurized gas enters the control reservoir to provide a control pressure behind the piston. Actuating the control mechanism vents the control reservoir, resulting in the gas valve opening rapidly to release the pressurized gas in the vessel through an exhaust port of the gas valve.

A golf putter head dimensioned to closely simulate the size of a regulation-sized golf hole and including at least an indicium approximating the size of a golf ball, whereby a golfer is presented with a visual representation of the size of the target at which he/she is aiming. The golf putter head further indicia for indicating a direction of initial travel of the ball. Further, the golf putter head includes three-dimensional indicia to assist the golfer in properly aligning his/her eyes and hands above the golf putter head while addressing the golf ball to be struck. When the golfer is in a proper stance the three-dimensional indicia substantially “disappear.”

The invention relates to a high-efficient process for manufacturing polycrystalline silicon cast ingots. The process is characterized by comprising the following steps: (1) preparing the following raw materials: 60-70% of native polycrystalline and 30-40% of polycrystal auxiliary materials; (2) washing the raw materials; (3) spraying a layer of quartz sand with the thickness of 0.5mm on the bottom surface of a crucible, wherein the particle size of the quartz sand is 70 meshes; putting the raw materials into the crucible, putting the crucible on a DS block of an ingot furnace, vacuumizing the ingot furnace and starting leakage detecting when the vacuum degree of the furnace chamber is 0.006mbar, wherein the furnace is qualified if the pressure recovery is less than 0.015mbar in 5 minutes; (4) carrying out a four-step heating process; (5) carrying out a 8-step melting process; (6) carrying out a 8-step crystal growing process; (7) annealing, cooling, and when the temperature in the ingot furnace chamber is below 400 DEG C and the argon fed in the ingot furnace chamber is up to 980mbar, opening the ingot furnace to obtain the silicon cast ingots. The process disclosed by the invention has the advantages that crystal flowers of the crystals are uniform and controlled within a certain range, the crystal defect is reduced and the minority carrier lifetime is prolonged, so that the conversion efficiency of the cast ingots is increased.

The invention discloses a sludge drying machine which comprises a compartment, wherein the compartment is internally provided with a conveyer belt for conveying sludge; a feeding hole and a discharge hole are respectively formed in the upper end and the lower end of the compartment; the compartment is arranged in a sealed manner; a guide fan for driving air to form a heat stream is arranged at one end opposite to the feeding hole, of the conveyer belt; a heating part for heating the air is arranged at one end close to the guide fan, at the lower end of the conveyer belt; an evaporator for recycling wastewater in hot and damp air is arranged at one end far away from the guide fan, at the lower end of the conveyer belt; a partitioning plate for guiding the heat stream to flow to the evaporator is arranged on one side back to the guide fan, on the inner wall of the compartment; a water discharge tube is connected with a liquid outlet of the evaporator; a diversion fan for leading the heat stream to the heating part from the evaporator is arranged between the evaporator and the heating part. As the compartment is sealed, the air flow forms sealed heat circulation inside the compartment, as much heat as possible can be adopted to dry sludge, instead of being discharged into the air directly to cause heat loss, and thus the energy utilization rate can be increased.

A container (10) for storing new and used pen needles (20,30), the container (10) comprising a housing (12) including a first compartment (50) configured to store one or mom new pen needles (20), and a second compartment (52) configured to store one or more used pen needles (30), wherein the first and second compartments (50,52) are inversely adjustable in size to accommodate various combinations of new and used pen needles (20, 30).