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Title: Connecting means for radio frequency transmission line
Claims: I claim: 1. Means for connecting together the outer uniform diameter tubular sections of a radio frequency transmission line and for supporting an inner tubular conductor in spaced relation therewithin, said means comprising a first circular flange connected to the end of one outer tubular section and a second circular flange connected to the adjacent end of the next outer tubular section, both flanges having a plurality of bolt holes therethrough spaced radially and angularly for mutual alignment, a circular groove in the face of said first flange, a circular wall extending above the face of said first flange, the outer circular face of said wall defining an extension of the inner circular wall of said groove, said outer circular face being of greater diameter than the said inner circular wall of said groove, the inner circular face of said wall defining a short cylindrical surface of greater diameter than the interior diameter of said tubular sections, a circular shoulder at one end of said short cylindrical surface, a circular spacer located within said short cylindrical surface and supported by said circular shoulder, an inner tubular conductor carried by said spacer in radially spaced relation to said first and second flanges and said tubular section, an O-ring in said groove with part of said O-ring extending above the face of said first flange, said second flange having a recess about its interior periphery defined by an annular surface adapted to engage the end of said raised circular wall and by a cylindrical surface extending from the said annular surface to the face of said second flange, said last named cylindrical surface sized to closely surround the outer circular face of said wall and having an axial dimension less than the distance from the end of said raised circular wall to the face of said first flange, the inner part of the annular face of said second flange adapted to engage the exposed part of said O-ring, the dimensions being such that when said annular face of the recess is in engagement with the end of said wall, said O-ring will be compressed by the inner part of the annular face of said second flange to create a seal between said first and second flanges, said second flange having a circular interior part which extends radially inward far enough to overlie the periphery of said spacer thereby to anchor said spacer in position between said flanges, both said flanges having interior circular recesses in which reside the ends of said adjacent tubular outer sections. 2. Means for connecting together the outer tubular sections of a radio frequency transmission line, said means comprising a first circular flange connected to the end of one tubular section and a second circular flange connected to the adjacent end of the next tubular section, both flanges having a plurality of bolt holes therethrough spaced radially and angularly for mutual alignment, a circular groove in the face of said first flange, a circular wall extending above the face of said first flange, the outer face of said wall defining an extension of the inner wall of said groove, the inner face of said wall defining a short cylindrical surface within which may be positioned a circular spacer, a circular shoulder at one end of said cylindrical surface for engaging and holding said spacer, an O-ring in said groove with part of said O-ring extending above the face of said first flange, said second flange having a recess about its interior periphery defined by an annular surface adapted to engage the end of said raised circular wall and by a cylindrical surface extending from the said annular surface to the face of said second flange, said cylindrical surface sized to closely surround the outer face of said wall, the inner part of the face of said second flange adapted to engage the exposed part of said O-ring, the dimensions being such that when said annular face of the recess is in engagement with the end of said wall, said O-ring will be compressed by the face of said second flange to create a seal between said first and second flanges, said second flange having a circular interior part which extends radially inward far enough to overlie the periphery of said spacer thereby to anchor said spacer in position between said flanges, the distance between the circular shoulder of said first flange and the circular interior part of said second flange when the flanges are assembled being greater than the thickness of said spacer. 3. A construction whereby the adjacent ends of outer tubular sections of a radio frequency transmission line may be connected together to provide a water tight joint and whereby an inner tubular power carrying conductor is supported within the connection, said construction comprising, a first circular flange having first and second annular faces and having a first interior circular recess with a first annular shoulder in which is positioned the end of one of said outer tubular sections, a second interior circular recess in said first flange axially spaced from said first recess and having a second annular shoulder a circular spacer of dielectric material positioned against said second annular shoulder, an inner tubular conductor carried by said spacer and axially aligned with said outer tubular sections and spaced therefrom, a circular wall integral with said first flange, the inner circular surface of said wall comprising the circular face of said second interior circular recess, the outer circular face of said wall extending from a position beyond the said second annular face of said first flange to a position in said first flange below the said second annular face, said first flange having a circular groove surrounding that part of the outer circular face of said wall that is below the said second annular face of said first flange, an O-ring in said circular groove with part thereof extending above said second annular face, a second circular flange in face to face cooperating relationship with said first flange, said second flange having third and fourth annular faces and having a third interior circular recess with a third annular shoulder in which is positioned the end of the other of said adjacent outer tubular sections, a fourth interior circular recess in said second flange axially spaced from said third recess and having a fourth annular shoulder, the said fourth annular shoulder having a radial dimension which causes it to overlap the periphery of said spacer and the end of said circular wall, the said fourth interior circular recess also having a cylindrical surface which overlaps that part of said circular wall which extends above the said second face of said first flange, means for drawing said flanges tightly together, the dimensions of the various parts being such that when the said fourth annular shoulder is in tight engagement with the end of said circular wall, the said fourth annular face of said second flange will press tightly against said O-ring and there will be clearance between said second and fourth faces of said first and second flanges respectively and said spacer will be positively located between said second and fourth annular shoulders. Other info: Inventors: Kruger, Jack L. (Goffstown, NH, US) Application Number: 452332 Filing Date: 1974-03-18 Publication_date: 1976-05-11 Assignee: Primary Class(es): 439/271 333/260, 439/363, 439/920 Other Classes: US Patent Ref:
Other Refs:
Primary Examiner: Lake, Roy Assistant Examiner: Desmond, E. F. Attorney: Chittick; C. Yardley |
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