US1750886A - Packing - Google Patents
Packing Download PDFInfo
- Publication number
- US1750886A US1750886A US394451A US39445129A US1750886A US 1750886 A US1750886 A US 1750886A US 394451 A US394451 A US 394451A US 39445129 A US39445129 A US 39445129A US 1750886 A US1750886 A US 1750886A
- Authority
- US
- United States
- Prior art keywords
- packing
- cup
- cups
- tapering
- bore
- 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
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
Definitions
- This invention relates to improvements in packing and more particularly to improve ments in packing of the type generally known as cup leathers.
- the wear on the packing is very severe, sometimes preventing it functioning at all.
- One type of tool to which the foregoing applies particularly is my Apparatus for locating leaks, as disclosed in my application filed June 26, 1928, Ser. No. 288,519.
- Other tools to which it could be applied with advantage, will be readily apparent to those skilled in the art.
- Fig. 1 is a side elevation, partly in section, showing my improved packing as applied to one type of well tool
- Fig. 2 is a side eleva- 40 tion to an enlarged scale showing the guiding means on the packing
- Fig. 3 is a section as seen on line 33 of Fig. 2.
- the well tool is denoted generally by 5 and is shown as having two packing cups 6, al though there may be any number of these.
- the tool comprises a mandrel 7 having cup followers 8 and spacing sleeves 9 adapted to clamp the central portions of the cups.
- parts may be maintained in assembled relation by permanently fixing the uppermost follower 8 to the mandrel 7 and threading a nut 10 onto the lower end of the mandrel against the lowermost spacing sleeve 9.
- Packing cups 6 are shown as opening downwardly and are preferably outwardly flared so as-to normally approximately engage the wall of a bore (not shown) at their greatest diameter, and beyond this greatest diameter the free edges of the cups preferably taper or are coned inwardly to form contracted lips 12, which are so inclined as to insure the cups moving downwardly through the bore without catching in the oints or being held by obstructions such as may result from irregularities or indentations in the walls thereof.
- the ends of the cups 6 are protected by wear resisting means which are arranged to assist in guiding the edges of the cups past obstructions in the bore and are adapted to yield locally for passing any appreciable obstruction.
- the wear resisting means comprises a plurality of triangular elements 14 of metal or the like suitably fixed to the exterior of lips 12 as by rivets 15 with their bases closely adjacent and disposed all the way around the circumference of the packing cup.
- the downwardly extending pointed ends extend below lips 12 and are inclined inwardly in accordance with the taper thereof, thus they will ride up and over any obstruction on the wall of the bore.
- the flexibility of the cup is not impaired as the elements 14: are relatively short in a circumferential direction and are attached by a single row of rivets along an altitude of each triangle, this altitude being parallel to the axis of the cup.
- Packing means comprising a cup shaped member of flexible material having a wear resisting guiding means at its free edge, said means comprising a plurality of tapering elements secured to said free edge.
- Packing means comprising a cup shaped member of expansible material having its free edge tapering inwardly and a wear resisting guiding means on said tapering edge comprising a plurality of tapering elements secured to said tapering edge with their tapering ends projecting beyond said cup.
- Packing means comprising a cup shaped member of expansible material having its free edge tapering inwardly and a Wear resisting guiding means on said edge comprising I a plurality of flat triangular shapedv elements secured on said edge, the plane of said ele- 'ments coinciding With said taper, the points of said triangles extending beyond, and in- Wardly from said ledge, said elements-being secured to said cup only along a line parallel to the axis of said cup, whereby the flexibility v on said cup is not impairedp: s' I 7 In witness that I claim the foregoing I have hereunto subscribed my name this 17th day of September, 1929. V r V I s PAUL H. GRANGER.
Description
March 18, 1930.
-'P. H. GRANGER PACKING Filed Sept. 23, 1929 INVENTOR. Pgu/ 6/6) BY yer ATTORNEYS.
Patented Mar. 18, 1930 UHTED TTES PAUL H. GRANGER, OF LOS ANGELES, CALTFORNIA PACKING Application filed September 23, Serial No. 394,451,
This invention relates to improvements in packing and more particularly to improve ments in packing of the type generally known as cup leathers. In some classes of oil well tools, it is necessary to form a fluid tight seal between the tool and the walls of the casing while the tool is being raised or lowered through distances of possibly several thou sand feet. As the inside of the casing is usually rough and frequently indented, the wear on the packing is very severe, sometimes preventing it functioning at all. One type of tool to which the foregoing applies particularly is my Apparatus for locating leaks, as disclosed in my application filed June 26, 1928, Ser. No. 288,519. Other tools to which it could be applied with advantage, will be readily apparent to those skilled in the art.
It is an object of this invention to provide a packing having a guiding meanswhich will prevent the packing catching in the joints of the well piping and insure the packing moving readily past any dents or other obstruction in the bore of the pipe. It is another object of this invention to provide a packing with a wear resisting contact surface for engaging the bore of the piping to prevent damage to the packing during its travel, the wear resisting contact surface preferably being adapted to readily yield locally for passing any obstruction.
These objects together with other objects and corresponding accomplishments are ob tained by means of the embodiment of my in- 'vention illustrated in the accompanying drawing in which Fig. 1 is a side elevation, partly in section, showing my improved packing as applied to one type of well tool; Fig. 2 is a side eleva- 40 tion to an enlarged scale showing the guiding means on the packing; and Fig. 3 is a section as seen on line 33 of Fig. 2.
Referring more particularly to the drawing, the well tool is denoted generally by 5 and is shown as having two packing cups 6, al though there may be any number of these. The tool comprises a mandrel 7 having cup followers 8 and spacing sleeves 9 adapted to clamp the central portions of the cups. The
parts may be maintained in assembled relation by permanently fixing the uppermost follower 8 to the mandrel 7 and threading a nut 10 onto the lower end of the mandrel against the lowermost spacing sleeve 9.
The ends of the cups 6 are protected by wear resisting means which are arranged to assist in guiding the edges of the cups past obstructions in the bore and are adapted to yield locally for passing any appreciable obstruction. The wear resisting means comprises a plurality of triangular elements 14 of metal or the like suitably fixed to the exterior of lips 12 as by rivets 15 with their bases closely adjacent and disposed all the way around the circumference of the packing cup. The downwardly extending pointed ends extend below lips 12 and are inclined inwardly in accordance with the taper thereof, thus they will ride up and over any obstruction on the wall of the bore. The flexibility of the cup is not impaired as the elements 14: are relatively short in a circumferential direction and are attached by a single row of rivets along an altitude of each triangle, this altitude being parallel to the axis of the cup.
What I claim is 1. Packing means comprising a cup shaped member of flexible material having a wear resisting guiding means at its free edge, said means comprising a plurality of tapering elements secured to said free edge.
2. Packing means comprising a cup shaped member of expansible material having its free edge tapering inwardly and a wear resisting guiding means on said tapering edge comprising a plurality of tapering elements secured to said tapering edge with their tapering ends projecting beyond said cup.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US394451A US1750886A (en) | 1929-09-23 | 1929-09-23 | Packing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US394451A US1750886A (en) | 1929-09-23 | 1929-09-23 | Packing |
Publications (1)
Publication Number | Publication Date |
---|---|
US1750886A true US1750886A (en) | 1930-03-18 |
Family
ID=23559006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US394451A Expired - Lifetime US1750886A (en) | 1929-09-23 | 1929-09-23 | Packing |
Country Status (1)
Country | Link |
---|---|
US (1) | US1750886A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1097760A3 (en) * | 1999-11-08 | 2002-04-17 | Daido Tokushuko Kabushiki Kaisha | Metal pipe expander |
-
1929
- 1929-09-23 US US394451A patent/US1750886A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1097760A3 (en) * | 1999-11-08 | 2002-04-17 | Daido Tokushuko Kabushiki Kaisha | Metal pipe expander |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4190108A (en) | Swab | |
US3029083A (en) | Seal for drilling heads and the like | |
US2330425A (en) | Packing ring | |
US2228649A (en) | Casing centralizer | |
US2299978A (en) | Casing protector | |
US2392146A (en) | Drill pipe wiper | |
DE2616189C2 (en) | Riser for an articulated structure for deep water oil production | |
US3125382A (en) | Well tools | |
US1750886A (en) | Packing | |
US2514817A (en) | Device for wiping mud and the like from pipes | |
US2212086A (en) | Float collar and guide shoe | |
US3023062A (en) | Swab rubber unit for well swab | |
US2772741A (en) | Combination paraffin scraper and rod guide | |
US2728398A (en) | Paraffin scraper | |
US2336090A (en) | Fluid retaining cup | |
US1965998A (en) | Well casing protector | |
US1814183A (en) | Pipe coupling and tool joint | |
US870428A (en) | Pipe-coupling packing. | |
US1889060A (en) | Well casing protector | |
US2117538A (en) | Cement basket | |
US1707312A (en) | Pipe joint | |
US2880440A (en) | Pipe wiper | |
US1907825A (en) | Tubing protector and guide | |
US2550487A (en) | Rod wiper | |
US1846539A (en) | Expansion joint for well liners |