- Email: [email protected]
Screw joint for oil well pipe, and manufacturing method
PATENTS
Seal for a stuffing box with lubricant dispensing Applicant/Inventor: M. Pattemore (UK) This patent describes a form of packing for a gland which is designed to dispense lubricant during operation. It comprises a hollow section of extruded elastomer with detachable running track of fibrous material such as aramid.
The elastomer provides a resilient base for the fibrous material. An arrangement is also included for the distribution of lubricant to adjacent packing rings. Patent number: WO 2005/071291 Publication date: 4 August 2005 Editor’s comment: Unfortunately no diagrams are available.
Sensing apparatus with integrated gasket on beam used in flow monitoring Applicant: Honeywell International Inc, USA This patent relates to the use of a gasket within a transducer component such as an instrumented beam used as a component in a flow monitoring system. The strain gauged sensing beam (100) has a
gasket pattern integrated onto the surface so that it creates a uniform interface between the main body (200) and the beam. Patent number: WO 2005/071354 Inventors: R. Oboodi, M.C. Janosik and J. Piascik Publication date: 4 August 2005
End-face seal for graphite electrodes Applicant: UCAR Carbon Company Inc, USA This patent is concerned with the joining of graphite electrodes used in steel manufacture. The established method of joining new lengths of electrode during the electric arc process is by using a screwed joint, but problems can occur with oxidation of the joint.
In this patent the ends of the carbon electrode are coated with a sealing compound containing exfoliated graphite particles, which has a lower oxidation rate than the electrode material. This compound serves to seal the joint. Patent number: WO 2005/074325 Inventors: B. Bowman et al. Publication date: 11 August 2005
Flange to allow rotation when bolts are tightened Applicant: GS-Hydro Oy, Finland This patent is designed to provide an improved arrangement of the type of flange that is designed to rotate when the bolts are tightened on assembly. It is intended to overcome the problem of a relatively deep locking groove, which results in a relatively high notch sensitivity and has an adverse effect on fatigue strength. The high shearing forces involved also prevent the reuse of current locking rings. The locking groove (4) is made relatively shallow in the form of a segment of an arc to reduce the notch sensitivity. The clamping flange (2) has a groove (5) shaped at its back edge to match the locking groove, and extended at the front edge to
A flange that rotates when clamped on assembly that has a locking ring designed to increase the fatigue strength of the joint, from WO 2005/078329.
Sealing Technology October 2005
extend up to a front face (14) of the clamping flange. This extended portion of the complementary groove (5) has a bottom which is substantially linear in cross-section. The locking ring (3) has a support member (13), which is external to the locking groove and fits in the expanded portion of the clamping flange groove, thus bearing against an external surface 15 of the pipe. The locking ring may be of metal or other suitable material. The support member is designed to prevent the locking ring being pushed out of the locking groove during tightening of the clamping flange. Patent number: WO 2005/078329 Inventor: R. Eriksson Publication date: 25 August 2005
A strain gauge sensor which includes a gasket between the sensing beam and clamp to create a uniform contact pattern, as described in WO 2005/071354.
Seal force monitor apparatus, system, and method for inprocess determination of integrity of sealed containers Applicant: Genesis Machinery Products Inc, USA This patent describes a method for ensuring the integrity of sealed containers. It is particularly intended for use in the pharmaceutical industry. As an alternative to inspecting the containers after filling and assembly, this system measures the seal force used to assemble the container, and infers a secure seal from known sealing data. A comprehensive data collection system is involved in monitoring the packaging machine. Patent number: WO 2005/072222 Inventors: J.L. Cosentino, R. Newman and B.D. Smith Publication date: 11 August 2005
The machine for assembling pharmaceutical containers, which incorporates an assembly sealing force measuring system, from WO 2005/072222.
Screw joint for oil well pipe, and manufacturing method Applicant: Sumitomo Metal Industries Ltd, Japan This patent is a screw joint for an oil well pipe that proposes a modified thread form and a method for manufacture. The purpose is to secure a sufficient fatigue breaking strength. The axial residual stress in the thread
bottom, measured by X-ray stress analysis, is intended to be 400 MPa or less for a depth of 40 µm from the surface. A detailed drawing of the thread form is included in the patent. Patent number: WO 2005/075873 Inventor: J. Maeda Publication date: 18 August 2005
13
Seal for a stuffing box with lubricant dispensing Applicant/Inventor: M. Pattemore (UK) This patent describes a form of packing for a gland which is designed to dispense lubricant during operation. It comprises a hollow section of extruded elastomer with detachable running track of fibrous material such as aramid.
The elastomer provides a resilient base for the fibrous material. An arrangement is also included for the distribution of lubricant to adjacent packing rings. Patent number: WO 2005/071291 Publication date: 4 August 2005 Editor’s comment: Unfortunately no diagrams are available.
Sensing apparatus with integrated gasket on beam used in flow monitoring Applicant: Honeywell International Inc, USA This patent relates to the use of a gasket within a transducer component such as an instrumented beam used as a component in a flow monitoring system. The strain gauged sensing beam (100) has a
gasket pattern integrated onto the surface so that it creates a uniform interface between the main body (200) and the beam. Patent number: WO 2005/071354 Inventors: R. Oboodi, M.C. Janosik and J. Piascik Publication date: 4 August 2005
End-face seal for graphite electrodes Applicant: UCAR Carbon Company Inc, USA This patent is concerned with the joining of graphite electrodes used in steel manufacture. The established method of joining new lengths of electrode during the electric arc process is by using a screwed joint, but problems can occur with oxidation of the joint.
In this patent the ends of the carbon electrode are coated with a sealing compound containing exfoliated graphite particles, which has a lower oxidation rate than the electrode material. This compound serves to seal the joint. Patent number: WO 2005/074325 Inventors: B. Bowman et al. Publication date: 11 August 2005
Flange to allow rotation when bolts are tightened Applicant: GS-Hydro Oy, Finland This patent is designed to provide an improved arrangement of the type of flange that is designed to rotate when the bolts are tightened on assembly. It is intended to overcome the problem of a relatively deep locking groove, which results in a relatively high notch sensitivity and has an adverse effect on fatigue strength. The high shearing forces involved also prevent the reuse of current locking rings. The locking groove (4) is made relatively shallow in the form of a segment of an arc to reduce the notch sensitivity. The clamping flange (2) has a groove (5) shaped at its back edge to match the locking groove, and extended at the front edge to
A flange that rotates when clamped on assembly that has a locking ring designed to increase the fatigue strength of the joint, from WO 2005/078329.
Sealing Technology October 2005
extend up to a front face (14) of the clamping flange. This extended portion of the complementary groove (5) has a bottom which is substantially linear in cross-section. The locking ring (3) has a support member (13), which is external to the locking groove and fits in the expanded portion of the clamping flange groove, thus bearing against an external surface 15 of the pipe. The locking ring may be of metal or other suitable material. The support member is designed to prevent the locking ring being pushed out of the locking groove during tightening of the clamping flange. Patent number: WO 2005/078329 Inventor: R. Eriksson Publication date: 25 August 2005
A strain gauge sensor which includes a gasket between the sensing beam and clamp to create a uniform contact pattern, as described in WO 2005/071354.
Seal force monitor apparatus, system, and method for inprocess determination of integrity of sealed containers Applicant: Genesis Machinery Products Inc, USA This patent describes a method for ensuring the integrity of sealed containers. It is particularly intended for use in the pharmaceutical industry. As an alternative to inspecting the containers after filling and assembly, this system measures the seal force used to assemble the container, and infers a secure seal from known sealing data. A comprehensive data collection system is involved in monitoring the packaging machine. Patent number: WO 2005/072222 Inventors: J.L. Cosentino, R. Newman and B.D. Smith Publication date: 11 August 2005
The machine for assembling pharmaceutical containers, which incorporates an assembly sealing force measuring system, from WO 2005/072222.
Screw joint for oil well pipe, and manufacturing method Applicant: Sumitomo Metal Industries Ltd, Japan This patent is a screw joint for an oil well pipe that proposes a modified thread form and a method for manufacture. The purpose is to secure a sufficient fatigue breaking strength. The axial residual stress in the thread
bottom, measured by X-ray stress analysis, is intended to be 400 MPa or less for a depth of 40 µm from the surface. A detailed drawing of the thread form is included in the patent. Patent number: WO 2005/075873 Inventor: J. Maeda Publication date: 18 August 2005
13