IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0801177
(2001-03-06)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Stader, John WilliamHenkel, Rebecca L.Trausch, A. Nicholas
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인용정보 |
피인용 횟수 :
8 인용 특허 :
10 |
초록
▼
An implement is provided that includes a frame, a ground engaging roller mounted to the frame, and a suspension system that includes a spring for biasing the roller toward the ground, and a frame support member fixed to the frame above the roller. The frame support member prevents the implement from
An implement is provided that includes a frame, a ground engaging roller mounted to the frame, and a suspension system that includes a spring for biasing the roller toward the ground, and a frame support member fixed to the frame above the roller. The frame support member prevents the implement from experiencing high forces when moved into the transport position or when a strong downpressure is exerted on the frame by transferring the forces through the ground working tools to the ground. The frame support member can be a rigid protrusion, a flat plate, or a rolling element. In preferred embodiments, the implement is an agricultural packer and frame support members are positioned above each roller.
대표청구항
▼
An implement is provided that includes a frame, a ground engaging roller mounted to the frame, and a suspension system that includes a spring for biasing the roller toward the ground, and a frame support member fixed to the frame above the roller. The frame support member prevents the implement from
An implement is provided that includes a frame, a ground engaging roller mounted to the frame, and a suspension system that includes a spring for biasing the roller toward the ground, and a frame support member fixed to the frame above the roller. The frame support member prevents the implement from experiencing high forces when moved into the transport position or when a strong downpressure is exerted on the frame by transferring the forces through the ground working tools to the ground. The frame support member can be a rigid protrusion, a flat plate, or a rolling element. In preferred embodiments, the implement is an agricultural packer and frame support members are positioned above each roller. xanthan gum and is present in an amount in the range of from about 4.4% to about 14.6% by weight of the second component. 13. The method of claim 1 wherein the hydratable polymer is hydroxyethylcellulose and is present in an amount in the range of about 4.4% to about 14.6% by weight of the second component. 14. The method of claim 1 wherein the organophilic clay is an alkyl quaternary ammonium bentonite clay, and is present in an amount in the range of from about 0.4% to about 1.6% by weight of the second component. 15. The method of claim 1 wherein the water-swellable clay is selected from the group consisting of montmorillonite, attapulgite, Fuller's earth, and bentonite and is present in an amount in the range of from about 84% to about 95% by weight of the second component. 16. The method of claim 1 wherein the water-swellable clay is bentonite and is present in an amount in the range of from about 84% to about 95% by weight of the second component. 17. The method of claim 1 wherein the temporary sealing composition further comprises an effective amount of a dispersing agent. 18. The method of claim 17 wherein the dispersing agent is lecithin. 19. A method of sealing a subterranean zone to prevent the uncontrolled flow of fluids into or from the zone comprising the steps of: preparing a subterranean zone temporary sealing composition consisting essentially of: a first component comprising oil in an amount in the range of about 32% to 62% by weight of the temporary sealing composition, the balance of the temporary sealing composition comprising a second component and a third component, wherein the second component comprises: a hydratable polymer, an organophilic clay, and a water-swellable clay, and the third component comprises an acid soluble material that is readily acid soluble but substantially insoluble in neutral or basic water wherein the third component is no more than about 1% by weight soluble in de-ionized water when tested at a pH of about 7, a temperature of about 212° F., and a pressure of about 1 atmosphere; and wherein the second component is present in an amount in the range of from about 10% to about 90% by weight of the balance of the temporary sealing composition, and wherein the third component is present in an amount in the range of from about 10% to about 90% by weight of the balance of the temporary sealing composition, and introducing the temporary sealing composition into the zone. 20. The method of claim 19 further comprising the step of: introducing an acid fluid into the zone. 21. The method of claim 20 wherein the acid fluid comprises 15% by weight hydrochloric acid in water. 22. The method of claim 19 wherein the third component is selected from the group consisting of calcium carbonate, magnesium carbonate, barium carbonate, and iron (II) carbonate. 23. The method of claim 19 wherein the third component is calcium carbonate. 24. The method of claim 19 wherein the third component has a mesh size of up to about 40. 25. The method of claim 19 wherein the third component has a mesh size of about 200. 26. The method of claim 19 wherein the second component is present in an amount in the range of from about 30% to about 70% by weight of the balance of the temporary sealing composition, and wherein the third component is present in an amount in the range of from about 30% to about 70% by weight of the balance of the temporary sealing composition. 27. The method of claim 19 wherein the second component is present in an amount of about 50% by weight of the balance of the temporary sealing composition, and wherein the third component is present in an amount of about 50% by weight of the balance of the temporary sealing composition. 28. The method of claim 19 wherein the oil is selected from the group consisting of diesel oil, mineral oils, kerosene, vegetable oils and synthetic oils, esters, and olefins. 29. The method of claim 19 wherein the oil is diesel oil. 30. The method of claim 19 where
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