Patents Assigned to John Guest International Limited
  • Patent number: 9909701
    Abstract: A tube coupling to receive and hold a tube includes a coupling body (10) having a throughway to receive a portion of a tube. A collet (17) in the coupling body has legs (21) with outer surfaces that engage with a tapered surface (24) in the coupling body which urges the legs inwardly to resist withdrawal of the tube. A biasing member (26) provides a biasing force without the tube inserted to urge the legs axially onto the tapered surface. The collet (17) can grip a large variety of pipe diameters. The coupling may be supplied with a number of inserts (30A-D) for sealing with the inner diameter of a pipe, the inserts having different diameters. A tool (50) for preparing the end of a pipe to receive the coupling is also contemplated.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: March 6, 2018
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Patent number: 9631756
    Abstract: A connector comprising a body (1) having a throughway (5) which is open at one end (4). A shoulder (8) in the throughway faces the open end and supports an O-ring (9). A collet (3) in the open end of the throughway has a plurality of legs (18) extending away from the open end, each engaging with the body and having an inwardly facing tooth to grip, in use, a tube in the throughway. The body has a plurality of fingers (11) extending to the open end. The connector further comprises a cap (2) fitting over the open end of the body and extending from the open end towards the opposite end. The cap has a plurality of recesses (23) in a wall at the open end into each of which a finger is retained by a snap fit.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: April 25, 2017
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Patent number: 9551447
    Abstract: A connector having a body 1 with a central throughway in which a tube T is received. A collet 30 within the body has a plurality of flexible legs 32 arranged to grip the tube T if a force is applied to withdraw the tube. The connector further comprises at least one first tooth 14, the first tooth having a gripping edge in a plane angled to a plane perpendicular to the main axis of the connector, and being mountable with respect to the body so as to be non-rotatable about the main axis X.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: January 24, 2017
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Patent number: 9322499
    Abstract: A connector comprising a body (1) having a throughway (5) which is open at one end (4). A shoulder (8) in the throughway faces the open end and supports an O-ring (9). A collet (3) in the open end of the throughway has a plurality of legs (18) extending away from the open end, each engaging with the body and having an inwardly facing tooth to grip, in use, a tube in the throughway. The body has a plurality of fingers (11) extending to the open end. The connector further comprises a cap (2) fitting over the open end of the body and extending from the open end towards the opposite end. The cap has a plurality of recesses (23) in a wall at the open end into each of which a finger is retained by a snap fit.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: April 26, 2016
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Patent number: 9261214
    Abstract: A tube coupling includes a body (1) to receive a tube (22). The body has lateral recesses (12) extending outwardly from an internal wall. An O-ring (3) is retained by the body distally of the recesses. A collet (5) includes a ring (6) and collet legs (7) to be received in the lateral recesses and having a tooth (8) facing the passageway. Proximal movement of the collet with respect to the body causes the fingers to deflect inwardly. A tube support (10) includes a ring (12) and has a key to align with the body. Castellations (13, 14) extend proximately from the tube support ring and are complementary to the collet legs to align the collet with respect to the body as the collet is inserted into the body.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: February 16, 2016
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Patent number: 8882156
    Abstract: A tube coupling to receive and hold a tube (T) includes a coupling body (10) having a throughway with an annular step (24) facing an open end (12). An annular seal (25) is located in the coupling body adjacent to the annular step. An end cap (13) engages the coupling body and is axially moveable. A collett (17) in the cap has legs (20) with outer surfaces that engage with a tapered surface (23) in the end cap to urge the legs inwardly to grip the tube. The seal (25) is compressed axially in response to the forward movement of the end cap (13) to cause the tube end to be pressed into sealing engagement with the seal end. A biasing member (28) provides a biasing force to urge the legs (20) axially onto the tapered surface (23) when the cap is in the retracted position.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: November 11, 2014
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Publication number: 20130257036
    Abstract: A tube coupling to receive and hold a tube includes a coupling body (10) having a throughway to receive a portion of a tube. A collet (17) in the coupling body has legs (21) with outer surfaces that engage with a tapered surface (24) in the coupling body which urges the legs inwardly to resist withdrawal of the tube. A biasing member (26) provides a biasing force without the tube inserted to urge the legs axially onto the tapered surface. The collet (17) can grip a large variety of pipe diameters. The coupling may be supplied with a number of inserts (30A-D) for sealing with the inner diameter of a pipe, the inserts having different diameters. A tool (50) for preparing the end of a pipe to receive the coupling is also contemplated.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 3, 2013
    Applicant: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Publication number: 20130257043
    Abstract: A tube coupling to receive and hold a tube (T) includes a coupling body (10) having a throughway with an annular step (24) facing an open end (12). An annular seal (25) is located in the coupling body adjacent to the annular step. An end cap (13) engages the coupling body and is axially moveable. A collett (17) in the cap has legs (20) with outer surfaces that engage with a tapered surface (23) in the end cap to urge the legs inwardly to grip the tube. The seal (25) is compressed axially in response to the forward movement of the end cap (13) to cause the tube end to be pressed into sealing engagement with the seal end. A biasing member (28) provides a biasing force to urge the legs (20) axially onto the tapered surface (23) when the cap is in the retracted position.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 3, 2013
    Applicant: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Patent number: 8444325
    Abstract: A connector for a conduit for a cable (e.g. an optical fiber cable or a power cable). The connector comprises a hollow body having a throughway for the cable with a coupling for a conduit at one end and a cavity in which an annular seal is located. An actuator is provided to compress the seal radially inwardly into engagement with the cable and into engagement with said side of the cavity to block flow of fluid (gas or liquid) through the cavity and/or to grip the cable. The connector may have means to retain the actuator in the position in which it compresses the seal.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: May 21, 2013
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Publication number: 20110309614
    Abstract: A tube coupling includes a body (1) to receive a tube (22). The body has lateral recesses (12) extending outwardly from an internal wall. An O-ring (3) is retained by the body distally of the recesses. A collet (5) includes a ring (6) and collet legs (7) to be received in the lateral recesses and having a tooth (8) facing the passageway. Proximal movement of the collet with respect to the body causes the fingers to deflect inwardly. A tube support (10) includes a ring (12) and has a key to align with the body. Castellations (13, 14) extend proximately from the tube support ring and are complementary to the collet legs to align the collet with respect to the body as the collet is inserted into the body.
    Type: Application
    Filed: June 17, 2011
    Publication date: December 22, 2011
    Applicant: JOHN GUEST INTERNATIONAL LIMITED
    Inventor: Timothy Steven Guest
  • Patent number: 8056937
    Abstract: A tube coupling includes a coupling body having a stem with an end to engage in a tube and an encircling head spaced from said end. A cap is mounted on the head having an open end encircling the stem to receive a tube inserted into the cap over the stem, the cap having an internal tapered cam surface. A tube locking collet is located in the open end of the cap and includes an annular member having a plurality of resilient fingers which engage the tapered cam surface. The cap includes a sleeve having a cylindrical main portion which encircles and is mounted on the head of the coupling body. The main portion projects along the stem and a portion of reducing diameter which provides said internal tapered cam surface with which the collet engages and the cap has locking elements which engage the head of the coupling body.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: November 15, 2011
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Patent number: 8029024
    Abstract: A tube coupling includes a coupling body (10) having an open ended throughway (11) to receive a tube (16). A collet (20) is located in the open end of the throughway having a ring (21) and a plurality of flexible arms (22) extending into the throughway. The throughway has a tapered cam surface (25) convergent towards the open end and the collet arms have heads (23) at their distal ends for engaging both the cam surface and a tube extending through the collet into the throughway to be compressed against the tube by the cam surface with outward movement of the collet with respect to the throughway to secure the tube in the throughway. A collet lock (27) is rotatably mounted on the coupling body having one rotary position in which the lock holds the collet (20) and another rotary position in which the collet can move axially.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: October 4, 2011
    Assignee: John Guest International Limited
    Inventor: Timothy Stephen Guest
  • Patent number: 8001989
    Abstract: A liquid flow control device has a port or passageway through which liquid flow is to be controlled. A body of a liquid swellable material is located in the port or passageway having an upstream side and a downstream side in relation to the direction of liquid flow through the port or passageway. A layer of sealing material is provided on the upstream side of the body to prevent contact of that side of the body with the liquid when the body is swollen to close the port or passageway whilst allowing contact of the downstream side of the body when the body is in the non-swollen condition allowing liquid flow through the port or passageway.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: August 23, 2011
    Assignee: John Guest International Limited
    Inventors: John Derek Guest, Timothy Stephen Guest
  • Patent number: D711516
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: August 19, 2014
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Patent number: D712014
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: August 26, 2014
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Patent number: D731627
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: June 9, 2015
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Patent number: D731628
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: June 9, 2015
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Patent number: D733846
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: July 7, 2015
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Patent number: D741458
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: October 20, 2015
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest
  • Patent number: D741459
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: October 20, 2015
    Assignee: John Guest International Limited
    Inventor: Timothy Steven Guest