Abstract: A communication apparatus having a first portion, a second portion and an extendible antenna is disclosed. The second portion is movable relative to the first portion. Such movement causes a corresponding movement of the antenna.

Abstract: A holder is eliminated when installing an antenna to a radio case, the installation operation is simplified, and a feeding mechanism is improved. A slit is provided in a stopper of an antenna so that the outer diameter can be reduced, and the antenna is inserted directly into a cylindrical section of the radio case from the bottom of the stopper. A plate-like feeding spring is provided at the cylindrical section, and is directly attached to a connection point of a circuit substrate of a radio; one end of the plate-like feeding spring pressingly contacts the side of the stopper of the antenna, thereby forming a feeding mechanism.

Abstract: The invention is directed to a self supporting cantilever support apparatus for mounting a satellite dish antenna to a building having a sidewall. The apparatus consists of a square, steel receiver tube having a foot plate mounted on one end and a square, steel telescope tube inserted and adjustably mounted within the receiver tube. The satellite dish is screwed onto the hour glass shaped plate affixed to the telescope tube. Slotted holes formed in the hour glass shaped plate to accommodate the many different types of satellite dishes. The co-axial cable is threaded through a hole in the telescope tube, through the two tubes and out through a hole formed in the bottom of the receiver tube.

Abstract: Extendable/stowable antenna apparatus includes a molded elongated antenna stem with fixed and free ends. The stem is molded with an outer bearing surface, anti-rotation surfaces extending between the fixed and free ends, and a detent surface including a detent stow slot and a detent extend slot. A molded antenna radome includes an elongated opening molded therein with a mating inner bearing surface and anti-rotation surfaces designed to mate with the outer bearing surface and the anti-rotation surfaces of the stem. The opening slidably engages the stem for sliding movements between a stow position and an extended position at the free end. A spring biased detent mechanism in the opening engages the detent stow slot in the stow position and the detent extend slot in the extended position.

Abstract: An antenna mast and method of using it relate to a retractable mast having a retractable mast having a plurality of tubular telescoping sections to enable the mast to move between a fully retracted storage position and a fully extended use position. Each section is equipped with a thermoplastic bearing to facility rapid deployment. Pairs of diametrically opposed pulley mechanisms are mounted on opposite sides of each one of the sections, and the pairs of pulleys are angularly displaced from section to section for facilitating the structural stability of the deployed mast.

Abstract: A mounting for a satellite dish antenna may be used in multi-unit or other dwellings in which mounting to exterior surfaces is forbidden. The mount includes a base mountable to a wall or to a balcony railing, an extension arm that pivots about the base and telescopes in length, and an aiming system attached to the end of the extension arm for mounting the antenna. In use, the mounting is attached to a wall or railing, the arm is rotated and telescoped outward, and the aiming system is used to aim the antenna at a satellite. The aiming system and the rotation and extension of the extension arm may be done remotely for convenience and to permit operation by disabled persons.

Abstract: A wireless LAN system is configured using a communication apparatus for a wireless LAN including an antenna unit comprising an antenna, or an antenna and at least a part of a circuit of the system provided as one body, and a support for supporting the antenna unit. In addition, a pedestal for the support configured so that a terminal device for transmission or reception can be disposed thereon.

Abstract: The present invention relates to radio communications and in particular to antenna structures. There is a growing demand in the radio communication system market to reduce the size and cost of radio communication sites and to reduce the maintenance costs involved. Many radio communication sites are also costly and difficult to maintain especially when dealing with components of the antenna structures which are located near the top of the antenna structures. The present invention attempts to address these problems. The present invention provides an antenna structure comprising a hollow antenna mast having an inside and an outside, a movable module disposed inside the hollow antenna mast and a lifting mechanism. The movable module has at least one antenna and/or at least one RF module. The a lifting mechanism permits the raising and lowering of the movable module inside the hollow antenna mast. Furthermore, the communications equipment can be placed inside the hollow antenna mast.

Abstract: In an integrated telescoping mast-payload assembly, the payload forms the top telescoping section.

Abstract: There is presented an antenna assembly comprising an elongated mast slida mounted in a support structure. A first electric motor is disposed at a proximal end of the mast for moving the mast along the axis of the mast, and a second electric motor is disposed at a distal end of the mast for moving the mast rotatively about its axis.

Abstract: A telescoping multi-sectional mast in which the upper sections are extended and retracted in a controlled predetermined sequence and in which each section, when fully extended, is automatically and positively locked to the next lower section.The improved locking system includes a lock projection-lock engagement pair, one of the pair being carried on the outer surface of each of the upper sections of the mast and the other of the pair being carried on the upper ends of each of the intermediate sections. A lock actuator stud is carried on the upper end of each of the intermediate and bottom sections. This pair cooperates to operatively lock together in response to disengagement with the actuator stud carried on the next lower mast section, to restrain relative vertical movement between an upper section which is fully extended from the next lower section. The pair unlocks in response to engagement with the actuator stud carried by the next lower section.

Abstract: A power mast for the automatic vertical elevation and retraction of various devices, such as an antenna mounted on a communications vehicle. The mast is cable-driven, having a plurality of individual telescoping sections which allow for an overall collapsed height the same as or only slightly higher than the tallest such individual section. The cable is threaded around a series of pulleys, and is driven by a motor. Constant tension is maintained in the system, so that when in its operating or "up" position, the device is held in a stable condition until retracted.

Abstract: A transportable broadcast antenna supported on a moveable carriage comprising a telescoping tower having plurality of nesting sections, including an outer section, and intermediate and inner sections, each section slidable relative to the adjacent exterior tower section between retracted, deployed and release positions, and latches to hold the section in the deployed position. The latches disengage when the section is further extended to the release position, and is prevented from locking when the tower is retracted. Radials join the tower and extending outwardly therefrom.

Abstract: An arrangement for accommodating telescoping masts on mobile carriers comprises devices for selectively swivelling the mast into a transport position or an operating position for support with respect to the ground surface for the raising of the mast into its operating position. The mast swivel bearing is provided on the carrier so that it can be adjusted or adapted for the respective adaptation of the center of gravity of the mast with respect to the mobile carrier, with respect to the transport position with vehicle wheels resting on the ground, and relative to the starting operating position of the mast with carrier supports resting on the ground surface.

Abstract: A compact, portable satellite dish antenna system comprises a dish-shaped member having an inner surface that includes a central circular flat area and a plurality of annular parabolically-shaped segments concentric with the central circular flat area for providing a plurality of focal points over the inner surface of the dish-shaped member to thereby improve the signal gathering characteristics of the dish antenna system.

Abstract: An extendible and retractable mast is shown which features a tubular body having telescopic sections carried therein. A travelling carriage is driven by means of a winch over associated sheaves to sequentially engage the trailing ends of the telescopic sections for moving the sections between a collapsed position and any desired degree of elevation projecting from the upper end of the tubular body. A series of locking cams allow each telescopic section to be locked into position at a desired degree of elevation. A power assist is provided for assisting the retraction of the telescopic sections.

Abstract: A telescoping multi-sectional mast in which the upper sections are extended and retracted in a controlled predetermined sequence an in which each section, when fully extended, is automatically and positively locked to the next lower section. The improved locking system includes a lock bar near the lower end of each lower section, a locking assembly on the upper end of each intermediate section and a lock actuator stud on the upper ends of each of the intermediate and bottom sections. The lock assembly includes an inwardly projecting collar, and rotatable disk having a locking projection segment formed on its periphery, a toggle responsive to vertical movement of the lock bar and stop actuated by the toggle for controlling rotation of the lock disk. The lock actuator stud and lock disk have mating engageable cam surfaces to cause and control rotation of the disk in response to vertical movement of each upper section relative to the next lower section.

Abstract: A lightweight extended aluminum or similar telescopic equilateral triangular tubular mast or tower assembly with coaxially disposed inner triangular sections and cable elevating and lowering drive apparatus for controlling low-resistance telescopic movement with alternate outside-to-inside canted pulley wheels mounted near the top of each section passing the cable downwardly and inwardly of the section to a flat pulley wheel mounted near the bottom of the next inner section.

Abstract: A telescoping pole system is described which is useful for supporting an antenna, for example, in an elevated position. The pole system can also be used to support a prism. The pole system is collapsible and portable. The uppermost pole section can be aligned with the lowermost pole section.

Abstract: A telescopic mast system has a base tube, a plurality of axially movable coaxial inner tubes nestable successively within each other and within the base tube, and a winch supported at the lower end of the base tube with a pair of preferably wire ropes driven thereby for extending and retracting the inner tubes. The base and inner tubes have collars at their respective ends, the collars of adjacent tubes engaging each other to limit extension thereof and to provide additional structural support during application of bending loads on the mast system. The ropes are connected to pulleys mounted near or within tube collars so that the ropes and pulleys are totally enclosed within the mast system. As the winch is rotated in one direction, the ropes axially move the inner tubes from a nested or stowed position within the base tube to a fully vertically extended operational position.

Abstract: A telescopic mast is provided in kit form with stays wound on reels in a predetermined order. This order is such that when erecting the mast it is only necessary to walk between the mast and pegs fixed into the ground and not between two pegs at a distance from the mast. This minimizes the amount of walking which is necessary in erecting the mast. Clamps between sections are formed from a strap around the outer of two concentric sections. The ends of the strap are secured together and attached to a member with a pressure face. A camming device between this member and the mast which acts against the pressure face and the mast enables the strap to be tightened thus gripping the outer mast portion against the inner mast portion. The top section of a telescopic mast is less inherent rigidity than the bottom section and this it is preferable to construct it from material with a greater resistance to longitudinal bending than the lower section and to vary the resistance of the intermediate sections accordingly.

Abstract: A combined disconnecting and grounding switch for high voltage use. A space-saving arrangement providing for automatic grounding when the switch is in an open circuit position. The disconnecting and grounding switch including a connection contact connectable with a contact having a high voltage potential wherein the contacts are vertically arranged one over the other. The switch also includes a switch rod designed to be vertically displaceable in its longitudinal direction. The switch rod has an upper conductive section and an adjoining lower non-conductive section. The switch rod can be moved up or down by a driving arrangement including a threaded shaft driven by a motor and a traveling nut assembly cooperating with the threaded shaft.

Abstract: A vertically extendible and retractable mast for supporting an antenna and coaxial cable connected thereto to receive and/or broadcast information and is particularly adapted for use by seismograph exploration crews for receiving data from portable transmitter units which may be located at substantial distances from the receiver with the mast being adapted for mounting stationarily or on a mobile vehicle. The mast and antenna is a multiple stage antenna with simultaneous movement of the sections of the mast with the coaxial cable being fed at the same rate that the upper end of the antenna mast moves with the specific arrangement of the extension or lifting cables, retracting cables, winch and coaxial cable producing a novel and unique extendible and retractable antenna mast.

Abstract: A multiband antenna mounting and feedline coupling arrangement includes a first transmission line segment secured in a mounting device for the antenna for coupling energy to and from the antenna. A second transmission line segment, extending, e.g., to grounded high band equipment, provides high band signal coupling with the first line and includes a direct current blocking capacitor in series in the ground return path of that second line segment, the capacitor having such a low impedance to high band energy that it presents negligible impedance to such energy. A third transmission line segment provides low band signal coupling with the first line by way of a part of the ground return path of the first line. A high band quarter wave, in the high band, filter stub transmission line is connected between the signal and ground return paths of the third transmission line adjacent to the point of coupling thereof to the first line.

Abstract: A column longeron latch assembly 72 provides the securing mechanism for the deployable, telescoping column 12 of a hoop/column antenna 10. Column 12 is an open lattice structure with three longerons disposed 120.degree. apart as the principle load bearing member and is deployed from a pair of eleven nested bays 22, 23 (FIG. 2) disposed on opposite sides of a center section 21 under the influence of a motor-cable-pulley system (FIGS. 3 and 4). Longeron latch 72 is a four bar linkage mechanism using the over-center principle for automatically locking the longeron sections into position during deployment and serves to unlock the sections when antenna 10 is to be re-stowed. A spring pack 61 disposed in an end of each longeron serves to absorb stress forces on the deployed column through the cam head piston and abutting latch from an adjacent longeron.

Abstract: Telescoping tubes capable of being extended for use as a mast are extendable or retractable by way of a tape having one end connected to the smallest tube and its other end contained in a spool. A tape guide is provided in the tube having the largest diameter. The tape guide is rectangular in section. A pair of guide rollers are provided adjacent the tape guide. Each guide roller is in rolling contact with a side edge of the tape at a location between the tape guide and means for winding or unwinding the tape.

Abstract: A highly compact and lightweight 82 channel all banded VHF-UHF television antenna having three antenna elements wherein each element is the identical physical length and each element includes two half sections. Each antenna element is separated a predetermined distance from each other element wherein the predetermined distance is substantially less than one-tenth of the shortest wave length in the VHF band. A first set of coils are utilized to electrically lengthen the halves of the two elements for reception in the VHF band and a second set of coils are utilized to provide proper delays between the signals received by each antenna element so that when the signals are combined the signals are substantially additive and in phase. The antenna system includes a weatherproof housing containing a rotor, a preamplifier, and electronic circuitry.

Abstract: An antenna mast is constructed from telescoped tubes which are extended for deployment by hydraulic or pneumatic pressure, the tubes when extended, are latched to each other internally, permitting depressurization. A set of unlatch cones becomes sequentially effective to unlatch the latches, beginning from the top to stepwise telescope the tubes into each other. Spring biased latches are mounted on an insert in the bottom of tubes; the unlatch cones, except the highest ones, extend from the bottom of the inserts.

Abstract: A portable radio link system mast, particularly for use in the field, employing mast tube elements which are lifted, one after the other, by means of a lifting device installed in the head of the stand and, after a certain height is reached, are connected with always the next mast tube element. The lifting device consists of three frictionally self-locking pawls arranged on top of each other, a carrying pawl, a lowering pawl and a lifting pawl, which permit a slipless lifting, lowering and locking of the mast tube elements in connection with springs. A cardigan cam lever with a feeler stud draws attention to a wrong connection of the mast tube elements, and a mast tube element in the range of the lifting device can only be pushed out of the head of the stand after a correct contact is established with the following mast tube element.

Abstract: A mechanical system is disclosed to deploy an antenna on a support which may, for example, be a spacecraft. A series of telescoping tubes are nested one within the other when the antenna is in a retracted stowed position. The outermost tube is rigidly attached to the support and the inner tubes are latched in the stowed position by a caging mechanism. The antenna is driven toward a deployed position by a dual motor driven cable which is terminated in a driving tube at the lower end of the innermost tube, from whence the cable is trained about pulleys at the tops and bottoms of successively large tubes of the antenna. The cable is wound on a drum at the lower end of the antenna and coaxial therewith. During deployment of the antenna, the drum rotates, thereby reeling in the deployment cable. The initial movement of the cable causes cam releasing of the latches in the caging device. Thereafter, the antenna tubes are extended until the final deployed position of the antenna is reached.

Abstract: A free standing mast for antennas comprising a plurality of telescoping tubes. Guide members, secured to the tubes, prevent rotation of an inner tube relative to an outer tube. Cables and pulleys, secured to the tubes, extend and retract the tubes.

Abstract: An aerial assembly comprising an upright tower of the type having attached vertical sections and an aerial standard carriage slidably attached to the tower and slidable along the tower, said tower serving the main upholding strength of the entire assembly and yet also serving as a guide-track.

Abstract: In an integrated telescoping mast-payload assembly, the payload forms the top telescoping section.