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Seal ring for plug in chemical vessels
PATENTS
Universal joint and bearing seal Applicant: Koyo Seiko Co Ltd, Japan The universal joint described in this patent has a bearing seal with two axially extending lips. There is no radial seal lip. The neck of the joint spider is
designed to accommodate the seals with axial lips. Patent number: WO 2005/119106 Inventors: K. Mizuno, K. Kawaguchi and T. Nakagawa Publication date: 15 December 2005
Sliding seal and linear motion guide Applicant: THK Co Ltd, Japan This patent covers a material for the manufacture of seals for machine tool slide-ways. Two different lubricants are blended into a base rubber. They are selected such
Seal ring for plug in chemical vessels Applicant: Surpass Industry Co Ltd, Japan A seal ring for a plug for use in vessels containing chemicals is described. It is intended to provide a seal without damaging the sealing surface of the plug cap. The seal ring (1) has an edge seal section (17) on the upper surface, a surface
seal section (18), and a projection section (19) engaging with a ring engagement section (16a) on the inner surface of the plug cap. A variety of designs is proposed. Patent number: WO 2005/121612 Inventors: H. Imai and K. Abe Publication date: 22 December 2005
that they bleed from the rubber at different temperatures. Patent number: WO 2005/119105 Inventors: H. Michioka et al. Publication date: 15 December 2005
Gas turbine engine including a low-pressure sump seal buffer source and thermally isolated sump Applicant: Honeywell International, USA This patent discusses the design of gas turbines, whereby the overhung mass of the rotor can be accommodated and the practice of using a buffer of air from the high-pressure compressor to the oil sump is avoided. The gas turbine is configured to use relatively cool air discharged
from a low-pressure compressor to supply buffer air to the lubrication sump seals. The sump is further isolated from the hot high-pressure air. This design avoids the problems of coking of the sump seals and overheating the lubricant. Patent number: WO 2005/116407 Inventors: M.C. Morris et al. Publication date: 8 December 2005
EMI foil laminate gasket with flexible metal layer Applicant: Schlegel Systems Inc, USA This patent covers a conductive electromagnetic interference (EMI) shielding gasket. The particular feature claimed is the provision of a relatively thick but flexible metal conducting layer. This is achieved by using a metal foil laminate that is at least 0.05 mm thick. The foil is wrapped around a non-porous, non-conductive flexible substrate (preferably polyester film) to form a conductive sheath. The flexible
substrate may be from 0.06 to 0.2 mm thick. The purpose is to provide a thicker metal coating than that achieved using techniques such as electroless plating or vapor deposition. Patent number: WO 2005/122665 Inventor: S.R. Miska Publication date: 22 December 2005 Editor’s note: The patent refers to a foil thickness of 2 mils, which I have interpreted as being the US colloquial definition of 0.002 inches.
Examples of the plug cap designs for chemical containers disclosed in WO 2005/121612.
Seal structure of compressor using integral forming Applicant: Zexel Valeo Climate Control Corporation, Japan A design of compressor which has improved sealing without increasing the the number of components, assembly steps or compressor size is described. A seal material (65) is formed integrally with the contact faces (11a) and (10a) of the suction
valve (11) and the valve plate (10) by printing. Also, the lead part (55) of the suction valve is projected, in a free state, to the valve plate side by more than the thickness of the seal material. Patent number: WO 2005/124152 Inventors: H. Kanai and S. Furuya Publication date: 29 December 2005
Arrangements for sealing waterproof watch casings Applicant: Eterna SA, Switzerland Seal designs that are used for penetrations into a waterproof watch casing are described. These may be rotary (as for hour setting) or axial (for stop buttons etc.), but rotating glasses are also discussed. The seals can be of a radial or axial configuration. The seal is a U-section with sealing lips designed to seal at both 16
high and low pressure. A toroidal section energizer is claimed to provide the optimum control of lip energization. Venting in the event of air overpressure inside the watch case is also considered. Patent number: WO 2005/124472 Inventor: E. Seyr Publication date: 29 December 2005
Cross-section of the compressor valve plate disclosed in WO 2005/ 124152, showing the printed seal and valve plate assembly.
Sealing Technology March 2006
Universal joint and bearing seal Applicant: Koyo Seiko Co Ltd, Japan The universal joint described in this patent has a bearing seal with two axially extending lips. There is no radial seal lip. The neck of the joint spider is
designed to accommodate the seals with axial lips. Patent number: WO 2005/119106 Inventors: K. Mizuno, K. Kawaguchi and T. Nakagawa Publication date: 15 December 2005
Sliding seal and linear motion guide Applicant: THK Co Ltd, Japan This patent covers a material for the manufacture of seals for machine tool slide-ways. Two different lubricants are blended into a base rubber. They are selected such
Seal ring for plug in chemical vessels Applicant: Surpass Industry Co Ltd, Japan A seal ring for a plug for use in vessels containing chemicals is described. It is intended to provide a seal without damaging the sealing surface of the plug cap. The seal ring (1) has an edge seal section (17) on the upper surface, a surface
seal section (18), and a projection section (19) engaging with a ring engagement section (16a) on the inner surface of the plug cap. A variety of designs is proposed. Patent number: WO 2005/121612 Inventors: H. Imai and K. Abe Publication date: 22 December 2005
that they bleed from the rubber at different temperatures. Patent number: WO 2005/119105 Inventors: H. Michioka et al. Publication date: 15 December 2005
Gas turbine engine including a low-pressure sump seal buffer source and thermally isolated sump Applicant: Honeywell International, USA This patent discusses the design of gas turbines, whereby the overhung mass of the rotor can be accommodated and the practice of using a buffer of air from the high-pressure compressor to the oil sump is avoided. The gas turbine is configured to use relatively cool air discharged
from a low-pressure compressor to supply buffer air to the lubrication sump seals. The sump is further isolated from the hot high-pressure air. This design avoids the problems of coking of the sump seals and overheating the lubricant. Patent number: WO 2005/116407 Inventors: M.C. Morris et al. Publication date: 8 December 2005
EMI foil laminate gasket with flexible metal layer Applicant: Schlegel Systems Inc, USA This patent covers a conductive electromagnetic interference (EMI) shielding gasket. The particular feature claimed is the provision of a relatively thick but flexible metal conducting layer. This is achieved by using a metal foil laminate that is at least 0.05 mm thick. The foil is wrapped around a non-porous, non-conductive flexible substrate (preferably polyester film) to form a conductive sheath. The flexible
substrate may be from 0.06 to 0.2 mm thick. The purpose is to provide a thicker metal coating than that achieved using techniques such as electroless plating or vapor deposition. Patent number: WO 2005/122665 Inventor: S.R. Miska Publication date: 22 December 2005 Editor’s note: The patent refers to a foil thickness of 2 mils, which I have interpreted as being the US colloquial definition of 0.002 inches.
Examples of the plug cap designs for chemical containers disclosed in WO 2005/121612.
Seal structure of compressor using integral forming Applicant: Zexel Valeo Climate Control Corporation, Japan A design of compressor which has improved sealing without increasing the the number of components, assembly steps or compressor size is described. A seal material (65) is formed integrally with the contact faces (11a) and (10a) of the suction
valve (11) and the valve plate (10) by printing. Also, the lead part (55) of the suction valve is projected, in a free state, to the valve plate side by more than the thickness of the seal material. Patent number: WO 2005/124152 Inventors: H. Kanai and S. Furuya Publication date: 29 December 2005
Arrangements for sealing waterproof watch casings Applicant: Eterna SA, Switzerland Seal designs that are used for penetrations into a waterproof watch casing are described. These may be rotary (as for hour setting) or axial (for stop buttons etc.), but rotating glasses are also discussed. The seals can be of a radial or axial configuration. The seal is a U-section with sealing lips designed to seal at both 16
high and low pressure. A toroidal section energizer is claimed to provide the optimum control of lip energization. Venting in the event of air overpressure inside the watch case is also considered. Patent number: WO 2005/124472 Inventor: E. Seyr Publication date: 29 December 2005
Cross-section of the compressor valve plate disclosed in WO 2005/ 124152, showing the printed seal and valve plate assembly.
Sealing Technology March 2006