[특허]Protective structure for tank top fittings

Gunderson LLC

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특허 상세정보

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Protective structure for tank top fittings

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B61D-005/00 B65D-090/00 B23K-031/02
출원번호	US-0625485 (2015-02-18)
등록번호	US-9358987 (2016-06-07)
발명자 / 주소	Thomas, Bradley J.
출원인 / 주소	Gunderson LLC
대리인 / 주소	Chernoff, Vilhauer, McClung & Stenzel, LLP
인용정보	피인용 횟수 : 0 인용 특허 : 20

초록
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A railway tank car including a protective structure for the top of its cargo tank and surrounding a valve group mounting nozzle and a pressure relief safety valve nozzle, to protect the associated valves against damage resulting from the car being overturned, particularly while the railcar is moving along a railway. The protective structure includes an upstanding wall of metal plate that surrounds and is located at a radial distance outwardly apart from the tank top valve group mounting nozzle. A reinforcing band is attached to an upper portion of the upstanding wall to enhance its strength. Also disclosed is a method of protecting fittings mounted on a nozzle on the tank top of a railway tank car by providing and mounting such a protective structure to surround the tank top nozzle and associated fittings.

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1. A railway tank car comprising: (a) an elongate, cylindrical cargo tank for containing fluid cargo, the cargo tank having a tank wall and a tank top;(b) an opening defined through the tank wall at the tank top;(c) a nozzle extending upwardly from the opening, the nozzle including a mounting flange located at an upper end of the nozzle;(d) a fittings protective structure, including an upstanding wall having an upper portion, the upstanding wall surrounding the nozzle and defining a space surrounding the nozzle, the upstanding wall being separate from and spaced radially outwardly apart from the nozzle and the mounting flange and free from connection to either of the nozzle and the mounting flange, the upstanding wall extending upward from a part of the tank top located radially outwardly apart from the nozzle, and being located at a radial clearance distance away from the mounting flange; and(e) a reinforcing band attached to and conforming to said upper portion of said upstanding wall and spaced upwardly apart from the tank top. 2. The railway tank car of claim 1 including a tank top reinforcement member surrounding the nozzle and mounted on an exterior of the tank wall. 3. The railway tank car of claim 2, wherein the tank top reinforcement member is a doubler plate welded to the tank top. 4. The railway tank car of claim 2, wherein the tank top reinforcement member is shaped to conform to the tank top. 5. The railway tank car of claim 1 wherein said radial clearance distance from the mounting flange is about 3 inches. 6. The railway tank car of claim 1, the fittings protective structure including a lid removably mounted on the upper portion of the protective structure covering and closing an upper end of the space defined within the fittings protective structure. 7. The railway tank car of claim 1, wherein the tank car has a vertical longitudinal central plane and a pair of opposite ends. 8. The railway tank car of claim 1 wherein the mounting flange extends radially outwardly from the upper end of the nozzle. 9. The railway tank car of claim 1 wherein the space including the nozzle, defined by the fittings protective structure, is a generally cylindrical space. 10. The railway tank car of claim 1 wherein the upstanding wall has an upper margin and the reinforcing band is attached to the upstanding wall adjacent the upper margin thereof. 11. The railway tank car of claim 1 wherein the reinforcing band extends around at least a majority of a circumference of the upper portion of the upstanding wall. 12. A protective structure for protecting fittings mounted on a tank top nozzle of a fluid cargo tank of a railroad car, comprising: (a) a tank top reinforcement plate shaped to conform to a tank top of the fluid cargo tank and defining a central opening therethrough;(b) an upstanding wall of metal plate located radially outwardly apart from and surrounding the central opening, the upstanding wall being free from connection to the tank top nozzle and being spaced radially outwardly apart from the tank top nozzle and thereby defining an enclosure surrounding the tank top nozzle, and the upstanding wall having a lower margin welded to the tank top reinforcement plate; and(c) a reinforcing band attached to and conforming to and extending along an upper portion of the upstanding wall. 13. The protective structure of claim 12, including a lid mounted on the upper portion of the upstanding wall and covering the enclosure defined by the upstanding wall. 14. The protective structure of claim 13, wherein the lid is attached to the upper portion of the protective structure by a hinge and is held in a closed configuration by a tamper-evident closure fastening. 15. A method of protecting fittings on a tank top nozzle of a railway tank car, comprising: (a) providing a fittings protecting structure including an upstanding wall, the upstanding wall having a bottom end configured to fit atop a tank top of the railway tank car; and(b) mounting the fittings protecting structure on the tank top in a position where the upstanding wall is separate from and not interconnected with the tank top nozzle, thereby defining an enclosure with the upstanding wall surrounding and extending upwardly above the tank top nozzle and spaced radially outwardly apart from the tank top nozzle, as well as from a mounting flange and a fittings mounting plate located at an upper end of the nozzle. 16. The method of claim 15 including the steps of attaching a reinforcing doubler plate member to the tank top of the railway tank car, surrounding the nozzle, with the reinforcing doubler plate member conforming to the tank top and extending radially outwardly away from the nozzle, and welding the bottom end of the upstanding wall to an upper surface of the reinforcing doubler plate member. 17. The method of claim 15 including the step of mounting a lid on the upper end of the upstanding wall in a position covering and closing an upper end of a space defined by the upstanding wall and that includes the nozzle and fittings. 18. The method of claim 15 wherein the step of mounting the fittings protection structure includes defining a generally cylindrical enclosure surrounding the tank top nozzle. 19. The method of claim 15 including the step of reinforcing an upper portion of the upstanding wall by mounting a reinforcing band on the upstanding wall near an upper end of the upstanding wall, conforming to and extending around at least a majority of a circumference of the upstanding wall so as to reinforce an upper portion of the upstanding wall. 20. The method of claim 15 including the step of providing said upstanding wall with sufficient height to extend at least to a height of a tallest fitting on the tank top nozzle.

이 특허에 인용된 특허 (20)

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특허 상세정보

Protective structure for tank top fittings

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Protective structure for tank top fittings

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이 특허에 인용된 특허 (20)

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IPC 상세정보(version : 201201)

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