Source: http://www.google.com/patents/US5855174?dq=%22tracy+thompson%22
Timestamp: 2015-03-29 11:21:32
Document Index: 535795528

Matched Legal Cases: ['application No. 08', 'application No. 08', 'application No. 08', 'application No. 08', 'application No. 08', 'application No. 08', 'application No. 08', 'application No. 08']

Patent US5855174 - Railway car underframe for an insulated railway boxcar - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsAn insulated composite railway boxcar having a composite box structure mounted on a railway car underframe is provided. The composite box structure includes side walls, end walls and a floor molded as an integral unit with fiber reinforced plastic interior and exterior surfaces. The composite box structure...http://www.google.com/patents/US5855174?utm_source=gb-gplus-sharePatent US5855174 - Railway car underframe for an insulated railway boxcarAdvanced Patent SearchPublication numberUS5855174 APublication typeGrantApplication numberUS 08/859,575Publication dateJan 5, 1999Filing dateMay 20, 1997Priority dateJul 21, 1995Fee statusLapsedAlso published asUS5765485, US5890435Publication number08859575, 859575, US 5855174 A, US 5855174A, US-A-5855174, US5855174 A, US5855174AInventorsMell R. Thoman, John W. CoulbornOriginal AssigneeTrn Business TrustExport CitationBiBTeX, EndNote, RefManPatent Citations (61), Non-Patent Citations (47), Referenced by (16), Classifications (14), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetRailway car underframe for an insulated railway boxcar
US 5855174 AAbstract
An insulated composite railway boxcar having a composite box structure mounted on a railway car underframe is provided. The composite box structure includes side walls, end walls and a floor molded as an integral unit with fiber reinforced plastic interior and exterior surfaces. The composite box structure includes a first fiber reinforced composite unit and a second fiber reinforced composite unit. The first fiber reinforce composite unit provides the end walls, side walls and floor for the railway boxcar. The second fiber reinforce unit may be permanently attached to the side walls and end walls to provide a roof for the boxcar. The railway car underframe has a center sill, side sills and end sills with a generally rectangular configurations and coplanar surfaces for adhesively bonding the composite box structure with the railway car underframe. Mechanical fasteners are also provided to couple the composite box structure with the railway car underframe.
1. A railway car underframe for mounting a composite box structure thereon to form an insulated railway boxcar comprising:a center sill with a pair of side sills and a pair of end sills arranged in a generally rectangular configuration; a plurality of cross bearers extending between the center sill and the side sills; a plurality of longitudinal stringers extending between the end sills and spaced laterally from each other between the center sill and the side sills; a pair of railway trucks attached to the underframe adjacent to each end of the center sill; a body bolster extending between the center sill and the side sills above each of the railway trucks; a pair of metal covers attached to an extending horizontally from each body bolster with the metal covers sized to extend over the respective railway trucks; each said metal cover having a first surface opposite from a respective one of said railway trucks; the longitudinal stringers each having a first surface and a second surface with the second surface of each said longitudinal stringer disposed on the cross bearers; the center sill, the side sills, and the end sills each having a first surface; and the first surfaces of the center sill, the side sills, the end sills, the longitudinal stringers and the metal covers disposed coplanar with each other. 2. The railway boxcar of claim 1 wherein the railway car underframe further comprises:a railcar coupling attached to each end of the center sill; an end of car cushioning unit disposed between each the railcar coupling and the center sill; and the length of travel of the end of car cushioning unit selected to provide protection for freight carried within the composite box structure. 3. The railway boxcar of claim 1 wherein the railway car underframe further comprises:a railcar coupling attached to each end of the center sill; and an end of car cushioning unit having more than fifteen inches of travel disposed between each the railcar coupling and the center sill. 4. The railway car underframe of claim 1 further comprising:four longitudinal stringers spaced laterally from each other between the center sill and the first side sill; and four longitudinal stringers spaced laterally from each other between the center sill and the second side sill. 5. The railway boxcar underframe of claim 1, further comprising:a plurality of tie down connections coupled to the railway boxcar underframe; and each tie down connection including at least one threaded bolt extending upwardly therefrom for engagement with a respective threaded opening in the composite box structure. Description
This application is a divisional application of U.S. application Ser. No. 08/684,345, filed Jul. 19, 1996 now U.S. Pat. No. 5,765,485 and entitled "Insulated Composite Railway Boxcar and Method", pending; which claims benefit of U.S. Provisional application Ser. No. 60/001,348 filed Jul. 21, 1995; U.S. Provisional application Ser. No. 60/001,347, filed Jul. 21, 1995; and U.S. Provisional application Ser. No. 60/001,346, filed Jul. 21, 1995.
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(no date).47 *Trinity Steel Box Car Key Features one page.* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS6000342 *Dec 5, 1997Dec 14, 1999Trn Business TrustRailway car underframe for an insulated composite boxcarUS6367391May 10, 1999Apr 9, 2002Trn Business TrustRailway car with composite box structure formed from molded componentsUS6558608 *Aug 13, 2001May 6, 2003Tpi Technology, Inc.Method for molding fiber reinforced composite containerUS6722288 *May 1, 2002Apr 20, 2004Trn Business TrustRailway box car with lower center of gravityUS7261786 *Sep 16, 2004Aug 28, 2007The Boeing CompanyFilament wound crew rest enclosure structureUS7353960Oct 5, 2004Apr 8, 2008Martin Marietta Materials, Inc.Cargo container with insulated floorUS7434520Apr 12, 2005Oct 14, 2008Martin Marietta Materials, Inc.Insulated cargo container doorsUS7448576 *Jul 11, 2007Nov 11, 2008The Boeing CompanyFilament wound crew rest enclosure structureUS7543367 *Jan 18, 2005Jun 9, 2009Trinity Industries, Inc.Method of assembling a temperature controlled railway carUS7587984Jun 13, 2005Sep 15, 2009Martin Marietta Materials, Inc.Insulated cargo containersUS7703835Aug 11, 2006Apr 27, 2010Weeda Dewey JSecondary door and temperature control system and methodUS7743715May 13, 2004Jun 29, 2010Gunderson LlcAir flow direction in a temperature controlled railroad freight carUS7748172Feb 13, 2004Jul 6, 2010Martin Marietta Materials, IInc.Insulated cargo containersUS8833268Dec 13, 2010Sep 16, 2014Utlx Manufacturing LlcRailroad tank carWO2005113310A1 *May 13, 2004Dec 1, 2005Becker Bruce DTemperature-controlled railroad freight carWO2013176776A1 *Mar 19, 2013Nov 28, 2013Carrier CorporationWall panel for climate controlled cargo container* Cited by examinerClassifications U.S. Classification105/413, 105/419, 105/418, 105/416International ClassificationB61F1/14, B61D17/04, B61F1/00Cooperative ClassificationB61F1/00, B61F1/14, Y02T30/34, B61D17/04European ClassificationB61F1/14, B61F1/00, B61D17/04Legal EventsDateCodeEventDescriptionMar 4, 2003FPExpired due to failure to pay maintenance feeEffective date: 20030105Jan 6, 2003LAPSLapse for failure to pay maintenance feesJul 23, 2002REMIMaintenance fee reminder mailedApr 3, 1998ASAssignmentOwner name: TRN BUSINESS TRUST, A BUSINESS TRUST OF DELAWARE,Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TRINITY INDUSTRIES, INC., A CORPORATION OF DELAWARE;REEL/FRAME:009104/0529Effective date: 19980304RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services