Joints and connections – Articulated members – Including static joint
Patent
1994-12-30
1997-03-04
Kim, Harry C.
Joints and connections
Articulated members
Including static joint
403165, 59 95, F16D 112
Patent
active
056072481
ABSTRACT:
A swivel includes two heads rotatably mounted to one another with a bearing arrangement including at least two angular contact bearings arranged to receive a tension loading, and one angular contact bearing arranged in an opposite direction to receive a compression loading. The swivel is attachable, such as with a clevis, to underground drilling equipment for use in pulling a cable or conduit during a widening operation. A calcium-based grease lubricates the bearings. Periodic flushing with calcium-based grease is through a grease zerk and two single lip seals. A separate center pin for mounting the inner races of the bearings is threadably mounted to one of the heads, wherein an unthreaded portion of the shaft is positioned in a counterbore in the head.
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Article entitled "Angular Contact Ball Bearings" from SKF General Catalog, pp. 251-258 and 3 cover pages, copyright 1991, labeled Exhibit O.
Condux International, Inc. brochure, entitled "Cable Installation Equipment & Tools," copyright 1991, pp. 24, 25, and 3 cover pages, labelled Exhibit A.
Condux International, Inc. brochure, entitled "808 Directional Boring swivel," 1 page, labelled Exhibit B.
Ardco Industries brochure, entitled "BoreKing.TM. Directional Boring Systems," 8 pages, copyright 1991, labelled Exhibit C.
Ardco Industries brochure, entitled "Boreking.TM. Directional Boring Systems," 4 pages, copyright 1991, labelled Exhibit D.
American Augers Inc. brochure, entitled "DD-15/DD-30 Directional Drills," 4 pages, labelled Exhibit E.
American Augers Inc. brochure, entitled "DD-40/DD-70 2 mid-sized drilling rigs from the world's foremost manufacturer of directional drills," 2 pages, dated Aug. 1992, labelled Exhibit F.
American Augers Inc. brochure, entitled "DD-140/DD-250/DD-500 The highest quality drilling rigs from the world's foremost manufacturer," 4 pages, dated Mar. 1993, labelled Exhibit G.
Underground Technologies, Inc. brochure, entitled "Underground Technologies Inc. Specialists in Advanced Guided Boring Systems," 7 pages, labelled Exhibit H.
Design & Manufacturing Ltd. brochure, 3 pages, labelled Exhibit I.
Trenchless Technology publication, pp. 10 and 52, dated Jun. 1994, labelled Exhibit J.
Miller Construction Products brochure, entitled "Miller," 10 pages, labelled Exhibit K.
Ferguson Michiana, Inc. brochure, 1 page, labelled Exhibit L.
Condux International, Inc. 3-inch swivel drawing, 1 page, labelled Exhibit M.
Condux International, Inc. 2-inch swivel drawing, 1 page, labelled Exhibit N.
Condux International, Inc.
Kim Harry C.
LandOfFree
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