# US 5,707,084 A · Garter spring stuffer pack quick connector > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,707,084 A - Document ID: US5707084A - Status: Granted - Kind: A - Application number: 08/576,244 - Filed: 1995-12-21 - Granted: 1998-01-13 - Earliest claimed: 1994-11-02 - Assignees: ITT Corporation - Inventors: George Szabo - Web page: https://patentgrep.com/patent/US5707084A ## CPC - F16L 41/08: Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe (F16L41/02 takes precedence) - F16L 37/22: in which the connection is maintained by means of balls, rollers or helical springs under radial pressure between the parts - Y10T 29/5367: Coupling to conduit - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A quick connector assembly for coupling a flexible hose or tube to a bore formed in a housing thereby to establish fluid communication between the interiors of the hose and bore, respectively, comprises an elongate tubular male insert having one end adapted to receive and retain the tube about its periphery. The other end of the male insert includes a contoured external surface defining an external locking flange, and a pair of axially-spaced external circumferential grooves for receiving a pair of O-rings which ultimately sealingly engage complementary cylindrical sections of the housing bore upon insertion of the connector assembly thereinto. Prior to its insertion into the housing bore, the connector assembly includes a garter spring which is radially collapsed about the male insert's contoured external surface by an encompassing annular spring guide. Upon inserting the connector assembly into the housing bore, the spring guide first seats itself against the housing and the garter spring is thereafter displaced by the locking flange from its radially-collapsed pre-insertion position within the spring guide down into the housing bore and, ultimately, into a locking groove formed internally of the housing bore. The garter spring thereafter further expands to allow the locking flange to pass therethrough and then radially contracts upon full insertion of the male insert into the housing bore to lock the connector assembly therein. ## Claims ### Claim 1 A connector assembly for insertion into an external bore formed in a housing, said bore having an internal circumferential groove formed therein, said connector comprising: an elongate tubular male insert having a longitudinal end adapted to be received in said bore, wherein the end of said male insert has a contoured external surface defining an external longitudinally-fixed circumferential locking flange, the locking flange having a first side and a second side; a resilient locking element adjacent to the end of said male insert proximate to the first side of the locking flange prior to insertion of said male insert into the bore, said locking element being expandable over the locking flange of said male insert upon longitudinal displacement of said locking element relative to the end of said male insert; and guide means for radially collapsing said locking element about the end of said male insert proximate to the first side of the locking flange until said locking element is displaced into the internal circumferential groove of said bore by the first side of the locking flange during insertion of said male insert into said bore. ### Claim 2 (depends on 1) The connector assembly of claim 1, wherein said bore radially collapses said locking element about the end of said male insert proximate to the first side of the locking flange when said locking element is displaced into said bore by the first side of the locking flange, said bore radially collapsing said locking element about the end of said male insert until said locking element is further displaced by the locking flange into the internal groove of said bore. ### Claim 3 (depends on 2) The connector assembly of claim 2, wherein, once said locking element is displaced by the first side of the locking flange of said male insert into the internal groove of said bore, and upon further insertion of said male insert into said bore, said locking element expands over the locking flange of said male insert and thereafter radially contracts about the end of said male insert proximate to the second side of the locking flange thereby to lock said male insert within said bore. ### Claim 4 (depends on 1) The connector assembly of claim 1, wherein an axial end of said guide means abuts said housing during displacement of said locking element into the said bore by the locking flange of said male insert. ### Claim 5 (depends on 1) The connector assembly of claim 1, wherein said locking element is continuous so as to encircle the end of said male element. ### Claim 6 (depends on 5) The connector assembly of claim 5, wherein said locking element is a garter spring. ### Claim 7 (depends on 6) The connector assembly of claim 6, wherein an axial end of said guide abuts said housing during displacement of said locking element into the internal groove of said bore by the locking flange of said male insert. ### Claim 8 (depends on 1) The connector assembly of claim 1, wherein said guide means is carried with said male insert prior to insertion of said male insert into said bore. ### Claim 9 A connector assembly for insertion into an external bore formed in a housing, said bore having an internal circumferential groove formed therein, said connector comprising: an elongate tubular male insert having a longitudinal end adapted to be received in said bore, wherein the end of said male insert has a contoured external surface defining an external circumferential locking flange; a resilient locking element about the contoured surface of said male insert, said locking element expanding over the locking flange thereof when said locking element is displaced into the internal groove of said bore; and a guide cooperating with said bore to radially collapse said locking element about the contoured surface of said male insert until said locking element is displaced into the internal groove of said bore by the locking flange of said male insert. ### Claim 10 (depends on 9) The connector assembly of claim 9, wherein said locking element is continuous so as to encircle the end of said male element. ### Claim 11 (depends on 10) The connector assembly of claim 10, wherein said locking element is a garter spring. ### Claim 12 (depends on 9) The connector assembly of claim 9, wherein said guide is carried with said male insert prior to insertion of said male insert into said bore. ### Claim 13 A connector assembly for insertion into an external bore formed in a housing, said bore having an internal circumferential groove formed therein, said connector comprising: an elongate tubular male insert having a longitudinal end adapted to be received in said bore, wherein the end of said male insert has a contoured external surface defining an external longitudinally-fixed circumferential locking flange, the locking flange having a first side and a second side; a resilient locking element adjacent to the end of said male insert proximate to the first side of the locking flange prior to insertion of said male insert into the bore, said locking element being expandable over the locking flange of said male insert upon longitudinal displacement of said locking element relative to the end of said male insert; and an annular guide encompassing the end of said male insert prior to insertion of said male insert into said bore, said guide slidably receiving and radially collapsing said locking element about the end of said male insert proximate to the first side of the locking flange until said locking element is displaced into the internal circumferential groove of said bore by the first side of the locking flange during insertion of said male insert said bore. ### Claim 14 (depends on 13) The connector assembly of claim 13, wherein said bore radially collapses said locking element about the end of said male insert proximate to the first side of the locking flange when said locking element is displaced into said bore by the first side of the locking flange, said bore radially collapsing said locking element about the end of said male insert until said locking element is further displaced by the locking flange into the internal groove of said bore. ### Claim 15 (depends on 14) The connector assembly of claim 14, wherein, once said locking element is displaced by the first side of the locking flange of said male insert into the internal groove of said bore, and upon further insertion of said male insert into said bore, said locking element expands over the locking flange of said male insert and thereafter radially contracts about the end of said male insert proximate to the second side of the locking flange thereby to lock said male insert within said bore. ### Claim 16 (depends on 13) The connector assembly of claim 13, wherein an axial end of said guide abuts said housing during displacement of said locking element into the said bore by the locking flange of said male insert. ### Claim 17 (depends on 13) The connector assembly of claim 13, wherein said locking element is continuous so as to encircle the end of said male element. ### Claim 18 (depends on 17) The connector assembly of claim 17, wherein said locking element is a garter spring. ### Claim 19 (depends on 13) The connector assembly of claim 13, wherein said guide is carried with said male insert prior to insertion of said male insert into said bore.