Abstract: A portable antenna is provided for mounting on a motor vehicle's side window and enabling easy and rapid mounting and removal. The portable antenna includes an outer RF transfer member, a current-fed radiator connected to the outer RF transfer member, an inner RF transfer member, a field-cancelling member operative to cancel the electromagnetic field in the plane of the field-cancelling member, and a pair of generally parallel wire members pivotally connecting the outer transfer member to the inner transfer member and bridging the inner and outer transfer members so as to overlie the side window when the antenna is mounted thereon.

Abstract: An antenna system for mounting on a glass plate with a radiator extending from one side of the glass plate and with an electrical connector and a cable extending from the opposite side of the glass plate whereby energy is transferred through the glass plate. Coupling means for a cable is provided, defining a receptacle for retaining the coupled end of the coaxial cable at an angle of essentially 15 to 60 degrees to said glass plate in said mounted position. Also, the antenna may define a helical base portion which may be attached to the glass plate on the side opposite to the coupling means. The helical base serves to shorten the antenna, and also to simultaneously serve as an electrical phase cancelling coil. Additionally, improvements are disclosed in the design of field cancelling conductors used.

Abstract: An antenna is disclosed which is particularly suitable for use with a cellular mobile phone. The antenna may be mounted on the rear window of a vehicle, and it includes a current fed one-quarter wavelength radiator adapted for mounting on one side of the window. An electrically conductive inner transfer member is mounted on the inside of the window in alignment with the radiator and a pair of spaced field-cancelling conductors are attached to the inside of the window and are spaced from the inner transfer member. The central conductor of an RF coaxial cable is coupled to the inner transfer member and the surrounding ground conductor of the coaxial cable is coupled to the field-cancelling conductors. In one embodiment, the one-quarter wavelength radiator comprises a pair of parallel, spaced radiator elements. RF energy is transferred through the vehicle window and the drilling of a hole for coupling the radiator to the coaxial cable is unnecessary.

Abstract: An isolator assembly for isolating a transmitting and receiving communications antenna member from a mast and connector. The isolator assembly electrically couples an antenna member to a connector for passage of radio frequency energy but also electrically isolates the antenna member from the connector and the mast from a high voltage on the antenna member.

Abstract: A generally rectangular-shaped casket-placer and casket-lowering apparatus for supporting a casket over a grave opening during a graveside service and for lowering the casket into the grave opening, or into the base of a burial vault in the grave opening, for interment after the conclusion of the graveside service includes side rails and end rails. The front or upper end rail is operatively connected to one of the side rails and transmits rotary motion of the one side rail through a shaft and gear mechanism in a combination braking and power transmission head to the armature of a D.C. motor generator which is located at one of the four corners of the apparatus and controls the speed of lowering of the casket by the apparatus. The lowering speed of the casket is controlled by an electrical loading circuit which incorporates a D.C. motor generator having an armature which is operatively connected to rotate with the side rails and the front end rail.

Abstract: A communications antenna is disclosed having improved mechanical strength, gain and reduced lateral dimensions. The antenna includes a three quarter wave length vertically disposed elongated radiating element and a plurality of one-quarter wave length diverging elements connected at their bottom end to the bottom of the vertical radiator. The diverging elements flare upwardly and outwardly from the radiator at an acute angle, typically between about five degrees and about thirty degrees. The band width of the antenna may be broadened by interconnecting the free ends of the diverging elements such as by a conductive hoop.

Abstract: An apparatus for mounting a mobile transmitting and receiving antenna to an automobile windshield or rear window is disclosed. The antenna is screwed into a socket of an antenna mount and is secured with a finger tightened lock nut. Confronting friction surfaces of the lock nut and socket are of a frusto-conical configuration. The lock nut generates a compression friction fit with the socket and resists vibration forces from vehicle movement, thereby preventing the antenna from disengaging from the socket. The antenna may be easily removed when desired by finger loosening the lock nut. The socket is attached to the base of the mount by two opposing screws. Each screw is oriented whereby when a flex force due to wind or otherwise is exerted on the antenna and a subsequent torque is transmitted to the base of the mount one of these screws will always resist a torque about an axis defined by these screws. The antenna is thereby maintained in a desired orientation by the arrangement of these opposing screws.

Abstract: An omnidirectional communications antenna for transmitting and receiving horizontally polarized waves and adaptable for transmitting and receiving vertically polarized waves. The antenna is adapted to be supported on a single mast. It may be dimensioned especially for use in the citizens band. The antenna utilizes a plurality of, and preferably three, elongated half wave length radiating elements supported on a mast in a horizontal coplanar array. A cam acting locking mechanism for easily and firmly securing an antenna to a mast, or the like, is also disclosed.