The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 1999
Filed:
Sep. 04, 1997
James Albert Glaser, Bonham, TX (US);
Ronald William Glaser, Ector, TX (US);
James Everett Britton, Durant, OK (US);
ACT Communications, Inc., Ector, TX (US);
Abstract
A surge suppressor for a radio frequency (RF) transmission line includes an a printed circuit board having a conductor for connection in series with a RF transmission line. The conductor has a capacitance for passing RF signals and blocking transients. To the printed circuit board are mounted a choke and a resistor, each of which is connected in series with the transmission line and in parallel to each other and to the capacitance of the conductor. The choke passes steady, direct current signals for powering equipment located on an antenna. The surge suppressor further includes the first and second discharge stages connected to the conductor on opposite sides of the impedance. Each stage includes a discharge device connected to the conductor through a radio frequency choke. The choke blocks leakage of radio frequencies into the discharge devices. A gas discharge tube is used for the first stage, which is for connection to an antenna side of the surge suppressor. A solid state device, having a lower breakdown voltage than the gas discharge tube, is used in the second stage, which is for connection to voltage sensitive equipment. The resistor assists in isolating the first and second stages. The first stage further includes a second gas discharge tube having a breakdown voltage higher than the first gas discharge tube for use in warning of degradation of the first gas discharge tube.