Abstract:
An antenna mounting bracket has a stationary leaf, a housing, a sliding plug and a spring. The stationary leaf has a connecting rod formed coaxially on and protruding from the stationary leaf. The housing is connected pivotally on the stationary leaf and has a proximal end, a distal end, a cavity formed coaxially in the proximal end and has a connecting leaf formed coaxially on and protruding from the distal end and attaching to an antenna. The sliding plug is mounted slidably in the cavity and presses against the connecting rod. The spring is mounted in the cavity between the housing and the sliding plug to press the sliding plug against the connecting rod. The antenna mounting bracket connects an antenna to a notebook computer and allows the antenna to fold against the notebook computer when not being used. Consequently, the antenna is stable when folded or extended.
Abstract:
An apparatus and method for determining local de-focus problems on a real time basis in a wafer exposure system. The distance of a wafer from an objective lens and rotation of the wafer about two orthogonal axis at each field position is adjusted to achieve optimum focus for each field of the wafer. The rotational data is fed to a computer and analyzed to determine if any of the rotational angles or if the difference between individual rotational angle and the mean rotational angle exceed critical angles. If any of the critical angles are exceeded local de-focus will occur and the exposure system must be checked for defects. If none of the critical angles are exceeded processing continues with the next wafer. The comparison of the rotational angles to the critical angles is performed for each wafer before continuing with the next wafer so that problems are discovered on a real time basis.
Abstract:
A 360° bi-directional rotary hinge formed of a fixed bracket, a rotary bracket, a limiter plate, a stop plate, a positioning plate, a spring ring and a fastening member for use in a folding electronic device is disclosed. Subject to matching between bottom blocks of the limiter plate and arched sliding grooves of the stop plate, movement of the stop plate is constrained by the fixed bracket, and therefore rotation of the rotary bracket of the 360° bi-directional rotary hinge is limited to a forward and backward 360° angle. Further, the stop plate carries an index block corresponding to a −180° angle indication hole and a 180° angle indication hole on the base member of the folding electronic device for giving an indication when the rotary bracket is rotated to +180° or −180° angle relative to the fixed bracket.
Abstract:
A pivot hinge includes: a fixing seat having therein a round hole from which two grooves forming an inversed “V” shape are extended downwards, the grooves include two bevel groove segments extending laterally and obliquely form the central bottom of the round hole to two different directions at the opening of the round hole, and include two vertical groove segments formed on the ends of the bevel groove segments respectively; a shaft of a rotation axle extends into the round hole; and includes: at least two mutually reversely allocated “9” shaped spring tubes each having a slipping over portion over the shaft surface, the portion is formed on its periphery a slit, a lower area of each slipping over portion has a positioning sheet extending downwards obliquely but not radially, each positioning sheet has a bottom vertical portion; the positioning sheets and the vertical portions are slipped respectively in the bevel and the vertical groove segments, an area at an upper area of each positioning sheet contacting with an upper area of a corresponding bevel groove segment forms a surface contacting fulcrum.
Abstract:
An antenna mounting bracket has a stationary leaf, a housing, a sliding plug and a spring. The stationary leaf has a connecting rod formed coaxially on and protruding from the stationary leaf. The housing is connected pivotally on the stationary leaf and has a proximal end, a distal end, a cavity formed coaxially in the proximal end and has a connecting leaf formed coaxially on and protruding from the distal end and attaching to an antenna. The sliding plug is mounted slidably in the cavity and presses against the connecting rod. The spring is mounted in the cavity between the housing and the sliding plug to press the sliding plug against the connecting rod. The antenna mounting bracket connects an antenna to a notebook computer and allows the antenna to fold against the notebook computer when not being used. Consequently, the antenna is stable when folded or extended.
Abstract:
A hinge includes a pivoting shaft, an engaging plate having a connection plate adapted for firm connection to a monitor and a fixing sleeve firmly mounted around the pivoting shaft and selectively engaging with a top face of the connection plate to function as an urging element to prevent the connection plate from pivoting away from the connection extension such that when the monitor engages with the base, the engagement between the monitor and the base is secured.
Abstract:
An antenna is mounted on a notebook and has a bracket, a pivot and a spring. The bracket has a sleeve and an arm. The sleeve has a cavity and a rail slot. The radially slot is defined radially through the sleeve and communicates with the cavity. The arm is formed on and extends outward from the sleeve to hold an antenna. The pivot has a chamber. The spring is mounted between the bracket and the pivot and has two ends respectively mounted in the cavity and the chamber. With the antenna hinge, the antenna pointing is adjusted easily and conveniently.
Abstract:
A hinge for a notebook computer has a base, a seat, a first ring, a second ring, a positioning ring and a fastener. The base has a hole and a flange. The flange protrudes from the hole. The seat is mounted pivotally in the hole and has a circular tab and a limit. The limit radially extends from the circular tab and selectively abuts the flange to limit the rotating angle of the seat. The first and second rings are mounted between the seat and the base to reduce the friction. The positioning ring is mounted in the hole and has a first boss and a second boss. The fastener is mounted in the hole and has a first notch and a second notch. The first notch and the second notch selectively engage with the second boss and the first boss to position the seat.
Abstract:
The present invention provides a cyclic dione polymer, which is a homopolymer or a copolymer of a cyclic dione monomer selected from those represented by formulae (I) and (II) wherein A and B may be the same or different and are independently selected from the group consisting of halogen, hydrogen, C3-20 cyclic or pericyclic alkyl, C1-20 linear and branched alkyl, C6-20 aryl, C7-20 arylalkyl, C7-20 alkylaryl, silyl, alkylsilyl, germyl, alkylgermyl, alkoxycarbonyl, acyl, and a heterocylic group; or, A and B are linked together to form a C3-20 saturated or unsaturated cyclic hydrocarbon group or a substituted or unsubstituted heterocyclic group; C is selected from the group consisting of oxygen, sulfur, wherein each R1 is independently selected from C1-20 alkyl and phenyl.