US3285615A - Seal - Google Patents
Seal Download PDFInfo
- Publication number
- US3285615A US3285615A US310223A US31022363A US3285615A US 3285615 A US3285615 A US 3285615A US 310223 A US310223 A US 310223A US 31022363 A US31022363 A US 31022363A US 3285615 A US3285615 A US 3285615A
- Authority
- US
- United States
- Prior art keywords
- base
- seal
- side walls
- flanges
- outer ends
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0887—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by elastic deformation of the packing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
- F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
- F16J15/024—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity
- F16J15/025—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity and with at least one flexible lip
Definitions
- This invention relates generally to the seal art, and more specifically to a new and useful seal of a type particularly adapted for use in place of rubber O-rings.
- Metal seals possess certain advantages over rubber 0- rings, but also present a problem in providing the requisite strength and rigidity within the limitations imposed by existing cavity diameters and permissible flange loading. These limitations must be observed, if true interchangeability with rubber O-rings is desired.
- the primary object of my invention is to provide a metallic seal of increased strength and rigidity, which seal is interchangeable with rubber O-rings without requiring any increase in cavity diameters and while maintaining a minimum in the compression force required for sealing.
- Another object of my invention is to provide a metallic seal having the aforesaid characteristics, and having improved fatigue life and pressure capability.
- Still another object of my invention is to provide the foregoing in a seal characterized by ease of manufacture.
- a seal constructed in accordance with my invention is characterized by the provision of a member of generally U-shaped transverse section having a base, side walls extending from the base, and laterally outwardly projecting flanges adjacent the outer ends of the side walls, the side walls tapering toward the flanges and the flanges projecting from the outer ends of the side walls a distance greater than the thickness of the side walls adjacent the flanges, the outer ends of the flanges being flat and providing surface engaging sea-ling areas.
- a seal constructed in accordance with my invention is characterized by the provision of a member of generally U-shaped transverse section having a base, side walls extending from the base, and laterally projecting flanges adjacent the outer ends of the side walls, the side walls tapering toward the flanges, and the flanges having flat surface engaging outer end portions which are substantially parallel when the member is unstressed.
- a seal constructed in accordance with my invention is characterized by the provision of a member of generally U-shaped transverse section having a base, side walls extending from the base, and laterally projecting flanges adjacent the outer ends of the side walls, the inner surfaces of the side walls being substantially parallel when the member is unstressed, and the outer surfaces of the side walls converging toward the flanges.
- FIG. 1 is a fragmentary, longitudinal sectional view of a joint incorporating a seal of my invention.
- FIG. 2 is a view, on an enlarged scale, showing the transverse sectional configuration of the seal.
- FIG. 1 a seal of my invention, generally designated 1, positioned in the cavity 2 of a tubular member 3, to which an end flange 4 is secured, as by bolts 5.
- Seal 1 is shown in its installed, stressed condition in FIG. 1, while FIG. 2 shows the transverse sectional configuration thereof in its unstressed condition.
- Seal 1 is of generally U-shaped transverse section, having a base 6 and side Walls 7 extending from one side of the base. Side walls 7 terminate, at their outer ends, in laterally outwardly projecting flanges 8 having flat outer ends 9 comprising the surface engaging sealing portions of the seal. That is, end surfaces 9 and particularly edges 9A thereof are in sealing engagement with the adjacent surfaces of members 3 and end flange 4.
- the sealing surfaces 9 and 9A are usually coated or plated with a ductile material 9B which will cold flow when the seal is compressed. This further enhances the sealing ability of the seal.
- base 6 The opposite ends of base 6 are flat, as shown at 10, from the outer side 11 of base 6 to a point short of the inner side 12 thereof. End surfaces 10 are parallel, and act as mechanical stops preventing overcompression of seal 1, as clearly illustrated in FIG. 1.
- the inner surfaces 13 of side walls 7 are substantially parallel.
- the outer side surfaces 14 thereof are flat, like inner surfaces 13, but converge from the base end portions 10 to flanges 8.
- This provides side walls 7 of tapered form, the degree of taper being such that the thickness of side walls 7 adjacent flanges 8 at the outer ends of the side walls is less than half the thickness of the side walls adjacent base 6.
- This tapered side wall configuration tends to equalize stress distribution throughout the seal, and avoids stress concentrations to provide better fatigue life and pressure capability. Further, the material of the seal member is concentrated at the base 6, producing a stronger seal without increasing cavity size such as would be required if an attempt were made to strengthen the seal by increasing its size throughout. This design also provides a seal of increased rigidity, without a corresponding increase in the compression force required to effect the seal.
- Flanges 8 project outwardly beyond the base end portions 10, in the unstressed condition of the seal, as clearly shown in FIG. 2.
- the flanges project beyond the side walls 7, at their outer ends, a distance substantially twice the thickness of the side walls 7 at the outer ends thereof.
- flanges 9 are of substantially square transverse section, in the portion thereof projecting beyond the outer ends of side walls 7, thereby providing a sealing surface 9 of substantial area, for increased sealing effect as contrasted with the situation which would prevail if flange 8 made substantially only point contact with member 3 and end flange 4.
- the initially substantially parallel ends 9 are important, because as the edges 9A are compressed the material 9B is caused to cold flow across ends 9 and into the irregularities of the sealing surfaces on members 3 and 4, as indicated in FIG.
- the corners between the meeting surfaces are rounded, as clearly shown in FIG. 2, except at the sealing end portions 9 of flanges 8. Also, it will be noted that the concentration of material at base 6 is such that, not only are the walls 7 much thicker adjacent base 6 than they are adjacent flanges 8, but base 6 itself is much thicker than wall members 7 at any point therealong. This provides maximum hoop strength for a given diameter.
- a seal comprising an annular unitary metallic member of generally U-shaped, radially facing transverse section having a base and opposite side walls extending from one side thereof, said side Walls terminating at their outer ends in laterally outwardly projecting flanges, the opposite ends of said base comprising stops against overcompression of said seal, the inner surfaces of said side Walls being flat and substantially parallel when said member is unstressed, and the outer surfaces of said walls converging toward said outer ends thereof from said base, the thickness of said side walls adjacent said outer ends thereof being no more than substantially one-half the thickness thereof adjacent said base, said base being thicker than said side walls atany point therealong, said flanges projecting beyond said opposite ends of said base and terminating in flat surface engaging sealing end portions, said surface engaging end portions being substantially parallel when said member is unstressed and having a coating of ductile material which will cold flow into irregularities of the surfaces being sealed.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Description
Nov. 15, 1966 N. D. TRBOVICH SEAL Filed Sept. 20, 1965 United States Patent 3,285,615 SEAL Nicholas D. Trbovich, 59 Fieldcrest Court, West Seneca, N.Y. Filed Sept. 20, 1963, Ser. N0. 310,223 5 Cl aimS. (Cl. 277180) This invention relates generally to the seal art, and more specifically to a new and useful seal of a type particularly adapted for use in place of rubber O-rings.
Metal seals possess certain advantages over rubber 0- rings, but also present a problem in providing the requisite strength and rigidity within the limitations imposed by existing cavity diameters and permissible flange loading. These limitations must be observed, if true interchangeability with rubber O-rings is desired.
Accordingly, the primary object of my invention is to provide a metallic seal of increased strength and rigidity, which seal is interchangeable with rubber O-rings without requiring any increase in cavity diameters and while maintaining a minimum in the compression force required for sealing.
Another object of my invention is to provide a metallic seal having the aforesaid characteristics, and having improved fatigue life and pressure capability.
Still another object of my invention is to provide the foregoing in a seal characterized by ease of manufacture.
In one aspect thereof, a seal constructed in accordance with my invention is characterized by the provision of a member of generally U-shaped transverse section having a base, side walls extending from the base, and laterally outwardly projecting flanges adjacent the outer ends of the side walls, the side walls tapering toward the flanges and the flanges projecting from the outer ends of the side walls a distance greater than the thickness of the side walls adjacent the flanges, the outer ends of the flanges being flat and providing surface engaging sea-ling areas.
In another aspect thereof, a seal constructed in accordance with my invention is characterized by the provision of a member of generally U-shaped transverse section having a base, side walls extending from the base, and laterally projecting flanges adjacent the outer ends of the side walls, the side walls tapering toward the flanges, and the flanges having flat surface engaging outer end portions which are substantially parallel when the member is unstressed.
In still another aspect thereof, a seal constructed in accordance with my invention is characterized by the provision of a member of generally U-shaped transverse section having a base, side walls extending from the base, and laterally projecting flanges adjacent the outer ends of the side walls, the inner surfaces of the side walls being substantially parallel when the member is unstressed, and the outer surfaces of the side walls converging toward the flanges.
The foregoing and other objects, advantages and characterizing features of my invention will becomeclearly apparent from the ensuing detailed description of an illustrative embodiment thereof, considered in conjunction with the accompanying drawing depicting the same, wherein like reference numerals denote like parts throughout and wherein:
FIG. 1 is a fragmentary, longitudinal sectional view of a joint incorporating a seal of my invention; and
FIG. 2 is a view, on an enlarged scale, showing the transverse sectional configuration of the seal.
Referring now in detail to the illustrative embodiment depicted in the accompanying drawing, there is shown a seal of my invention, generally designated 1, positioned in the cavity 2 of a tubular member 3, to which an end flange 4 is secured, as by bolts 5. Seal 1 is shown in its installed, stressed condition in FIG. 1, while FIG. 2 shows the transverse sectional configuration thereof in its unstressed condition.
Seal 1 is of generally U-shaped transverse section, having a base 6 and side Walls 7 extending from one side of the base. Side walls 7 terminate, at their outer ends, in laterally outwardly projecting flanges 8 having flat outer ends 9 comprising the surface engaging sealing portions of the seal. That is, end surfaces 9 and particularly edges 9A thereof are in sealing engagement with the adjacent surfaces of members 3 and end flange 4. The sealing surfaces 9 and 9A are usually coated or plated with a ductile material 9B which will cold flow when the seal is compressed. This further enhances the sealing ability of the seal.
The opposite ends of base 6 are flat, as shown at 10, from the outer side 11 of base 6 to a point short of the inner side 12 thereof. End surfaces 10 are parallel, and act as mechanical stops preventing overcompression of seal 1, as clearly illustrated in FIG. 1.
In the unstressed condition of the seal, the inner surfaces 13 of side walls 7 are substantially parallel. The outer side surfaces 14 thereof are flat, like inner surfaces 13, but converge from the base end portions 10 to flanges 8. This provides side walls 7 of tapered form, the degree of taper being such that the thickness of side walls 7 adjacent flanges 8 at the outer ends of the side walls is less than half the thickness of the side walls adjacent base 6.
This tapered side wall configuration tends to equalize stress distribution throughout the seal, and avoids stress concentrations to provide better fatigue life and pressure capability. Further, the material of the seal member is concentrated at the base 6, producing a stronger seal without increasing cavity size such as would be required if an attempt were made to strengthen the seal by increasing its size throughout. This design also provides a seal of increased rigidity, without a corresponding increase in the compression force required to effect the seal.
The provision of initially substantially parallel inner wall surfaces 13 facilitates the manufacture of a tapered wall seal, with its advantages, by avoiding the problems introduced by the critical nature of an internal taper. It also facilitates varying the thickness of base 6, and consequently the hoop strength of the seal, without affecting either the taper or the outer end wall form of the seal.
The corners between the meeting surfaces are rounded, as clearly shown in FIG. 2, except at the sealing end portions 9 of flanges 8. Also, it will be noted that the concentration of material at base 6 is such that, not only are the walls 7 much thicker adjacent base 6 than they are adjacent flanges 8, but base 6 itself is much thicker than wall members 7 at any point therealong. This provides maximum hoop strength for a given diameter.
Accordingly, it is seen that my invention fully accomplishes its intended objects. While I have disclosed and described in detail only one embodiment of my invention, that has been done by way of illustration, it being my intention that the scope of my invention be defined by the appended claims.
Having fully disclosed and completely described my invention, and its mode of operation, what I claim as new is:
1. A seal comprising an annular unitary metallic member of generally U-shaped, radially facing transverse section having a base and opposite side walls extending from one side thereof, said side Walls terminating at their outer ends in laterally outwardly projecting flanges, the opposite ends of said base comprising stops against overcompression of said seal, the inner surfaces of said side Walls being flat and substantially parallel when said member is unstressed, and the outer surfaces of said walls converging toward said outer ends thereof from said base, the thickness of said side walls adjacent said outer ends thereof being no more than substantially one-half the thickness thereof adjacent said base, said base being thicker than said side walls atany point therealong, said flanges projecting beyond said opposite ends of said base and terminating in flat surface engaging sealing end portions, said surface engaging end portions being substantially parallel when said member is unstressed and having a coating of ductile material which will cold flow into irregularities of the surfaces being sealed.
2. A seal as set forth in claim 1, wherein said coating comprises a malleable metal.
3. A seal as set forth in claim 1, wherein said coating comprises a malleable non-metallic material.
4. A seal as set forth in claim 1, said opposite ends of said base being flat and substantially parallel from the other side of said base to a point substantially short of said one side thereof to comprise said stops against overcompression of said seal.
5. A seal as set forth in claim 1, said opposite ends of said base being flat and substantially parallel to comprise said stops against overcompression of said seal, the outer surfaces of said walls being flat and converging toward said outer ends thereof from said flat ends of said base to said flanges when said member is unstressed, the outwardly projecting portions of said flanges being of substantially rectangular transverse section, and the corners between said other side of said base and said opposite ends thereof and between said inner Wall surfaces and said flanges being rounded.
References Cited by the Examiner UNITED STATES PATENTS OTHER REFERENCES Machine Design The Seals Book, The Pentaton Publishing Co, Jan. 19, 1961 (Copy in Div. 360 (T1 246 M3) SAMUEL ROTHBERG, Primary Examiner.
EDWARD V. BENHAM, LAVERNE D. GEIGER,
Examiners. J. S. MEDNICK, Assistant Examiner.
Claims (1)
1. A SEAL COMPRISING AN ANNULAR UNITARY METALLIC MEMBER OF GENERALLY U-SHAPED, RADIALLY FACING TRANSVERSE SECTION HAVING A BASE AND OPPOSITE SIDE WALLS EXTENDING FROM ONE SIDE THEREOF, SAID SIDE WALLS TERMINATING AT THEIR OUTER ENDS IN LATERALLY OUTWARDLY PROJECTING FLANGES, THE OPPOSITE ENDS OF SAID BASE COMPRISING STOPS AGAINST OVERCOMPRESSION OF SAID SEAL, THE INNER SURFACES OF SAID SIDE WALLS BEING FLAT AND SUBSTANTIALLY PARALLEL WHEN SAID MEMBER IS UNSTRESSED, THE OUTER SURFACES OF SAID WALLS CONVERGING TOWARD SAID OUTER ENDS THEREOF FROM SAID BASE, THE THICKNESS OF SAID SIDE WALL ADJACENT SAID OUTER ENDS THEREOF BEING NO MORE THAN SUBSTANTIALLY ONE-HALF THE THICKNESS THEREOF ADJACENT SAID BASE, SAID BASE BEING THICKER THAN SAID SIDE WALLS AT ANY POINT THEREALONG, SAID FLANGES PROJECTING BEYOND SAID OPPOSITE ENDS OF SAID BASE AND TERMINATING IN FLAT SURFACE ENGAGING SEALING END PORTIONS, SAID SURFACE ENGAGING END PORTIONS BEING SUBSTANTIALLY PARALLEL WHEN SAID MEMBER IS UNSTRESSED AND HAVING A COATING OF DUCTILE MATERIAL WHICH WILL COLD FLOW INTO IRREGULARTIES OF THE SURFACES BEING SEALED.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US310223A US3285615A (en) | 1963-09-20 | 1963-09-20 | Seal |
DE19641450433 DE1450433A1 (en) | 1963-09-20 | 1964-09-16 | Sealing ring |
GB38393/64A GB1081363A (en) | 1963-09-20 | 1964-09-21 | Improvements in sealing members |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US310223A US3285615A (en) | 1963-09-20 | 1963-09-20 | Seal |
Publications (1)
Publication Number | Publication Date |
---|---|
US3285615A true US3285615A (en) | 1966-11-15 |
Family
ID=23201505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US310223A Expired - Lifetime US3285615A (en) | 1963-09-20 | 1963-09-20 | Seal |
Country Status (3)
Country | Link |
---|---|
US (1) | US3285615A (en) |
DE (1) | DE1450433A1 (en) |
GB (1) | GB1081363A (en) |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3448986A (en) * | 1966-08-04 | 1969-06-10 | Parker Hannifin Corp | Gasket and joint for cylinder heads |
US3501158A (en) * | 1967-07-03 | 1970-03-17 | Cassius L Tillman | Tubular seal |
US3561793A (en) * | 1969-09-03 | 1971-02-09 | Temper Corp | Seal element and spacer member for use therewith |
US3643965A (en) * | 1968-08-02 | 1972-02-22 | Corrugated Packing Sheet Metal | Sealing means |
US4125929A (en) * | 1974-03-04 | 1978-11-21 | Temper Corporation | Deformable metallic element |
EP0029101A1 (en) * | 1979-11-19 | 1981-05-27 | International Business Machines Corporation | A hermetic seal |
EP0117418A1 (en) * | 1983-02-24 | 1984-09-05 | Gray Tool Company | Fire resistant connections and dovetail-like sealing means therefor |
EP0117453A1 (en) * | 1983-02-24 | 1984-09-05 | Vetco Gray Inc. | Fire resistant connections and U-like sealing means therefor |
EP0117417A1 (en) * | 1983-02-24 | 1984-09-05 | Vetco Gray Inc. | Fire resistant connections and T-like sealing means therefor |
EP0118018A1 (en) * | 1983-02-24 | 1984-09-12 | Gray Tool Company | Fire resistant connections and double ribbed sealing means therefor |
US4741541A (en) * | 1985-08-09 | 1988-05-03 | Single Buoy Moorings Inc. | Seal for a rotatable pipe coupling |
US4998740A (en) * | 1989-09-29 | 1991-03-12 | Rockwell International Corporation | Face seal assembly |
US5058906A (en) * | 1989-01-19 | 1991-10-22 | Vetco Gray Inc. | Integrally redundant seal |
US5076617A (en) * | 1990-08-10 | 1991-12-31 | Bronnert Herve X | Seal for aseptic fitting assembly |
US5076594A (en) * | 1988-11-10 | 1991-12-31 | Baugh Hollis A | Sealing connection between tubular members |
US5669612A (en) * | 1994-07-13 | 1997-09-23 | Specialist Sealing Limited | Metallic seal rings |
US5797604A (en) * | 1995-12-25 | 1998-08-25 | Ckd Corporation | Metal gasket |
US5958160A (en) * | 1996-02-22 | 1999-09-28 | Compagnie Generale Des Etablissements Michelin - Michelin & Cie | Valve with elliptical base |
FR2784437A1 (en) * | 1998-08-28 | 2000-04-14 | Eg & G Inc | RING OR METAL SEAL FOR LOW LOAD CONDITIONS |
US6203025B1 (en) * | 1998-03-18 | 2001-03-20 | Rolls-Royce Plc | Seal |
US20060061047A1 (en) * | 2004-09-22 | 2006-03-23 | Mullally Michael J | Leak resistant seal |
US20080075223A1 (en) * | 2004-07-08 | 2008-03-27 | Katsunari Ohsono | Radioactive-material container, metal gasket for sealing the radioactive-material container, and method of manufacturing the metal gasket |
US20110120697A1 (en) * | 2009-11-25 | 2011-05-26 | Vetco Gray Inc. | Metal-to-metal seal with wiper element and wellhead system incorporating same |
US20110180275A1 (en) * | 2010-01-27 | 2011-07-28 | Vetco Gray Inc. | Bi-Metallic Annular Seal and Wellhead System Incorporating Same |
US20120139235A1 (en) * | 2009-08-26 | 2012-06-07 | Satoru Koyanagi | Metal seal ring and duct apparatus using the metal seal ring |
US20120169013A1 (en) * | 2009-10-20 | 2012-07-05 | Smith Andre M | Metal seal |
CN103244679A (en) * | 2013-05-21 | 2013-08-14 | 昆山健博密封件科技有限公司 | Orifice sealing element |
US20130207349A1 (en) * | 2012-02-09 | 2013-08-15 | Cameron International Corporation | Lip Seal |
US8596484B1 (en) | 2012-05-22 | 2013-12-03 | Sypris Technologies, Inc. | Tool-less closure |
CN103968074A (en) * | 2014-04-22 | 2014-08-06 | 章华 | Middle flange sealing structure of high-pressure valve |
US9056701B1 (en) | 2012-05-22 | 2015-06-16 | Sypris Technologies, Inc. | Tool-less closure |
US9097346B1 (en) | 2013-03-15 | 2015-08-04 | Sypris Technologies, Inc. | Closure lip seal relief |
US20220057029A1 (en) * | 2018-12-14 | 2022-02-24 | Commissariat à l'énergie atomique et aux énergies alternatives | Metal seal comprising a textured outer sealing layer |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE614140C (en) * | 1930-10-02 | 1935-06-03 | Luc Leon Basile Denis | Elastic connection for pipelines with a U-shaped intermediate piece that faces the inside of the pipe with its cavity and consists of a harder material than the pipe ends to be cleaned |
US2547185A (en) * | 1947-05-27 | 1951-04-03 | Yuba Mfg Company | Shaft seal |
US3083023A (en) * | 1959-03-02 | 1963-03-26 | North American Aviation Inc | Spring seal |
GB926789A (en) * | 1962-03-08 | 1963-05-22 | Cadillac Gage Co | Sealing device |
-
1963
- 1963-09-20 US US310223A patent/US3285615A/en not_active Expired - Lifetime
-
1964
- 1964-09-16 DE DE19641450433 patent/DE1450433A1/en active Pending
- 1964-09-21 GB GB38393/64A patent/GB1081363A/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE614140C (en) * | 1930-10-02 | 1935-06-03 | Luc Leon Basile Denis | Elastic connection for pipelines with a U-shaped intermediate piece that faces the inside of the pipe with its cavity and consists of a harder material than the pipe ends to be cleaned |
US2547185A (en) * | 1947-05-27 | 1951-04-03 | Yuba Mfg Company | Shaft seal |
US3083023A (en) * | 1959-03-02 | 1963-03-26 | North American Aviation Inc | Spring seal |
GB926789A (en) * | 1962-03-08 | 1963-05-22 | Cadillac Gage Co | Sealing device |
Cited By (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3448986A (en) * | 1966-08-04 | 1969-06-10 | Parker Hannifin Corp | Gasket and joint for cylinder heads |
US3501158A (en) * | 1967-07-03 | 1970-03-17 | Cassius L Tillman | Tubular seal |
US3643965A (en) * | 1968-08-02 | 1972-02-22 | Corrugated Packing Sheet Metal | Sealing means |
US3561793A (en) * | 1969-09-03 | 1971-02-09 | Temper Corp | Seal element and spacer member for use therewith |
US4125929A (en) * | 1974-03-04 | 1978-11-21 | Temper Corporation | Deformable metallic element |
EP0029101A1 (en) * | 1979-11-19 | 1981-05-27 | International Business Machines Corporation | A hermetic seal |
US4477091A (en) * | 1983-02-24 | 1984-10-16 | Gray Tool Company | Fire resistant connections and U-like sealing means therefor |
EP0117453A1 (en) * | 1983-02-24 | 1984-09-05 | Vetco Gray Inc. | Fire resistant connections and U-like sealing means therefor |
EP0117417A1 (en) * | 1983-02-24 | 1984-09-05 | Vetco Gray Inc. | Fire resistant connections and T-like sealing means therefor |
EP0118018A1 (en) * | 1983-02-24 | 1984-09-12 | Gray Tool Company | Fire resistant connections and double ribbed sealing means therefor |
EP0117418A1 (en) * | 1983-02-24 | 1984-09-05 | Gray Tool Company | Fire resistant connections and dovetail-like sealing means therefor |
US4741541A (en) * | 1985-08-09 | 1988-05-03 | Single Buoy Moorings Inc. | Seal for a rotatable pipe coupling |
US5076594A (en) * | 1988-11-10 | 1991-12-31 | Baugh Hollis A | Sealing connection between tubular members |
US5058906A (en) * | 1989-01-19 | 1991-10-22 | Vetco Gray Inc. | Integrally redundant seal |
US4998740A (en) * | 1989-09-29 | 1991-03-12 | Rockwell International Corporation | Face seal assembly |
US5076617A (en) * | 1990-08-10 | 1991-12-31 | Bronnert Herve X | Seal for aseptic fitting assembly |
US5669612A (en) * | 1994-07-13 | 1997-09-23 | Specialist Sealing Limited | Metallic seal rings |
US5797604A (en) * | 1995-12-25 | 1998-08-25 | Ckd Corporation | Metal gasket |
US6056291A (en) * | 1995-12-25 | 2000-05-02 | Ckd Corporation | Metal gasket |
US5958160A (en) * | 1996-02-22 | 1999-09-28 | Compagnie Generale Des Etablissements Michelin - Michelin & Cie | Valve with elliptical base |
US6203025B1 (en) * | 1998-03-18 | 2001-03-20 | Rolls-Royce Plc | Seal |
FR2784436A1 (en) * | 1998-08-28 | 2000-04-14 | Eg & G Inc | RING OR METAL SEAL FOR LOW LOAD CONDITIONS |
FR2784437A1 (en) * | 1998-08-28 | 2000-04-14 | Eg & G Inc | RING OR METAL SEAL FOR LOW LOAD CONDITIONS |
US20080075223A1 (en) * | 2004-07-08 | 2008-03-27 | Katsunari Ohsono | Radioactive-material container, metal gasket for sealing the radioactive-material container, and method of manufacturing the metal gasket |
US7372933B2 (en) * | 2004-07-08 | 2008-05-13 | Mitsubishi Heavy Industries, Ltd. | Radioactive-material container, metal gasket for sealing the radioactive-material container, and method of manufacturing the metal gasket |
US20060061047A1 (en) * | 2004-09-22 | 2006-03-23 | Mullally Michael J | Leak resistant seal |
US7032905B2 (en) * | 2004-09-22 | 2006-04-25 | Mullally Michael J | Leak resistant seal |
US9470313B2 (en) * | 2009-08-26 | 2016-10-18 | Satoru Koyanagi | Metal seal ring |
US20120139235A1 (en) * | 2009-08-26 | 2012-06-07 | Satoru Koyanagi | Metal seal ring and duct apparatus using the metal seal ring |
US9151133B2 (en) * | 2009-10-20 | 2015-10-06 | Aker Subsea As | Metal seal |
US20120169013A1 (en) * | 2009-10-20 | 2012-07-05 | Smith Andre M | Metal seal |
US8393400B2 (en) | 2009-11-25 | 2013-03-12 | Vetco Gray Inc. | Metal-to-metal seal with wiper element and wellhead system incorporating same |
US20110120697A1 (en) * | 2009-11-25 | 2011-05-26 | Vetco Gray Inc. | Metal-to-metal seal with wiper element and wellhead system incorporating same |
US8622142B2 (en) | 2010-01-27 | 2014-01-07 | Vetco Gray Inc. | Sealing wellhead members with bi-metallic annular seal |
US20110180275A1 (en) * | 2010-01-27 | 2011-07-28 | Vetco Gray Inc. | Bi-Metallic Annular Seal and Wellhead System Incorporating Same |
US20130207349A1 (en) * | 2012-02-09 | 2013-08-15 | Cameron International Corporation | Lip Seal |
US9611712B2 (en) * | 2012-02-09 | 2017-04-04 | Onesubsea Ip Uk Limited | Lip seal |
US8596484B1 (en) | 2012-05-22 | 2013-12-03 | Sypris Technologies, Inc. | Tool-less closure |
US9056701B1 (en) | 2012-05-22 | 2015-06-16 | Sypris Technologies, Inc. | Tool-less closure |
US9097346B1 (en) | 2013-03-15 | 2015-08-04 | Sypris Technologies, Inc. | Closure lip seal relief |
CN103244679A (en) * | 2013-05-21 | 2013-08-14 | 昆山健博密封件科技有限公司 | Orifice sealing element |
CN103968074A (en) * | 2014-04-22 | 2014-08-06 | 章华 | Middle flange sealing structure of high-pressure valve |
US20220057029A1 (en) * | 2018-12-14 | 2022-02-24 | Commissariat à l'énergie atomique et aux énergies alternatives | Metal seal comprising a textured outer sealing layer |
US11821517B2 (en) * | 2018-12-14 | 2023-11-21 | Commissariat à l'énergie atomique et aux énergies alternatives | Metal seal comprising a textured outer sealing layer |
Also Published As
Publication number | Publication date |
---|---|
DE1450433A1 (en) | 1968-12-05 |
GB1081363A (en) | 1967-08-31 |
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