Assignee: Martin Marietta Materials, Inc.

Location: Raleigh, NC
No. of patents: 25

Number	Title	Issue Date
7980165	Modular blast-resistant panel system for reinforcing existing structures Various embodiments of the present invention provide a blast-resistant reinforcement assembly and/or system for engaging a surface of an existing structure to protect the structure from an applied force, such as an explosive detonation. The assembly includes one or ...	07/19/2011
7790076	Foam insulating liners and methods for manufacturing the same A foam insulating liner includes a liner frame comprising a first side, a second side and a perimeter disposed about an injected foam insulating core. The method of its manufacture includes the steps of placing a first side of an insulating liner frame in a first ha...	09/07/2010
7608313	Panel apparatus with supported connection A panel apparatus comprises a tongue-in-groove connection connecting first and second panels. A support secured to one of the panels underlies the tongue-in-groove connection for support thereof when a load is applied. ...	10/27/2009
7594474	Open-top rail car covers and open-top rail cars employing the same An open-top rail car cover is defined by a frame having dimensions sufficient to fit an open-top freight car designed in accordance with the Association of American Railroads, a roof and a pair of end walls. A latch disposed about a side of the frame includes a firs...	09/29/2009
7587984	Insulated cargo containers A method of insulating an existing cargo container, such as a boxcar. The method allows for the application of improved insulation materials to improve the R-Value of an existing boxcar without building a new boxcar. In one implementation, the method includes prepar...	09/15/2009
7578534	Structural panel for a refrigerated trailer comprising an integrated bulkhead structure for promoting air flow The invention provides a structural panel with an integrated bulkhead structure for promoting airflow within a refrigerated container, such as a refrigerated trailer. More specifically, the invention provides a front wall portion for a refrigerated container definin...	08/25/2009
7575264	Cargo bed structure comprising fiber reinforced polymer components The invention provides a cargo bed structure comprising a sub-floor assembly comprising a plurality of cross members in spaced relation and a cargo bed defined by a longitudinally extending load-bearing deck overlying the sub-floor assembly and comprising a pluralit...	08/18/2009
7562508	Shelter and associated method of assembly A shelter comprises a roof, a floor, and a plurality of side walls secured to the floor and the roof. At least one of the floor, the roof, and the plurality of side walls comprises an exterior panel, an interior panel, and an attachment device secured to the exterio...	07/21/2009
7514489	Flame-retardant magnesium hydroxide compositions and associated methods of manufacture and use The invention provides a submicron magnesium hydroxide particulate composition comprising a first distribution of magnesium hydroxide particles having a D50 of no more than about 0.30 μm, a D90 of no more than about 1.5 μm, and a BET surface area of at least about...	04/07/2009
7451995	King pin assembly for securing trailer to fifth wheel A king pin assembly for securing a trailer to a fifth wheel comprises a king pin and a king pin mount. The king pin is adapted to be secured to the fifth wheel. The king pin mount is secured to the king pin and adapted to mount the king pin to the trailer. The king ...	11/18/2008
7434520	Insulated cargo container doors A method to insulate an existing door for an existing cargo container, such as a boxcar. In one implementation, the method includes attaching a liner to at least one surface of the door, incorporating an insulating layer, and attaching a gasket to the liner. A door ...	10/14/2008
7353960	Cargo container with insulated floor The present invention relates to an insulated cargo container with an insulated floor. The insulated floor includes insulating members and insulation layers in order to remove thermal shorts and increase the thermal efficiency of the cargo container. ...	04/08/2008
7163100	Reciprocating floor structure Slats and a supporting structure for a reciprocating floor located on a surface of a base are provided. The slats may be constructed of ultra high molecular weight materials. The slats may be configured to be retained on the surface of the base. ...	01/16/2007
6546352	Method and apparatus for evaluation of aggregate particle shapes through multiple ratio analysis A method and apparatus for performing multiple ratio analysis of aggregate particles, wherein the method includes the steps of measuring a first maximum dimension of a particle, measuring a second maximum dimension of a particle in a direction substantial...	04/08/2003
6467118	Modular polymeric matrix composite load bearing deck structure A load bearing deck structure is made from at least one sandwich panel formed of a ploymer matrix composite material. The sandwich panel comprises a plurality of substantially hollow, elongated core members having side walls, the core members being provid...	10/22/2002
6213418	Variable throw eccentric cone crusher and method for operating the same A variable throw eccentric cone crusher. The cone crusher comprises a frame, a crusher head supported on the frame for gyration about a first axis, a bowl supported on the frame in spaced relation to the crusher head, and a mechanism on the frame for vary...	04/10/2001
6145390	Flat and elongated device for measuring particle sizes An apparatus for measuring dimensions of particles includes a base. At least three fixed posts are mounted to the base. A swinging arm is pivotally mounted to the base about a pivot point. The swinging arm has a first section mated with a first of the at ...	11/14/2000
6129297	Cone crusher with wear indicator A cone crusher with wear indicator. The cone crusher comprises a frame, a head rotatably supported on the frame, a bowl supported on the frame in spaced relation to the head, a liner mounted on one of the head and the bowl, and an indicator for indicating...	10/10/2000
6108998	Modular polymer matrix composite support structure and methods of constructing same A modular structural section for use in support structures such as load bearing decks or highway bridges. The modular structural section includes at least one beam and a load bearing deck preferably formed of a polymer matrix composite material. The deck ...	08/29/2000
6092350	Modular polymer matrix composite support structure and methods of constructing same A load bearing deck of a modular structural section for use in support structures such as a load bearing deck or highway bridge. The at least one modular structural section includes at least one beam and a load bearing deck preferably formed of a polymer ...	07/25/2000
6081955	Modular polymer matrix composite support structure and methods of constructing same A load bearing support structure in the form of a traffic-bearing highway bridge including at least one modular structural section. The at least one modular structural section includes at least one beam, the at least one beam containing a pair of lateral ...	07/04/2000
6070378	Modular polymer matrix composite support structure and methods of constructing same A load bearing deck of a modular structural section for use in support structures such as a load bearing deck or highway bridge. The at least one modular structural section includes at least one beam and a load bearing deck preferably formed of a polymer ...	06/06/2000
6044607	Modular polymer matrix composite support structure and methods of constructing same A load bearing deck of a modular structural section for use in support structures such as a load bearing deck or highway bridge. The at least one modular structural section includes at least one beam and a load bearing deck preferably formed of a polymer ...	04/04/2000
6023806	Modular polymer matrix composite support structure and methods of constructing same A load bearing support structure in the form of a traffic-bearing highway bridge including at least one modular structural section. The at least one modular structural section includes at least one beam, the beam comprising a pair of lateral flanges and a...	02/15/2000
5794402	Modular polymer matrix composite support structure and methods of constructing same A modular structural section for use in support structures such as load bearing decks or highway bridges. The modular structural section includes at least one beam and a load bearing deck preferably formed of a polymer matrix composite material. The deck ...	08/18/1998

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Assignee: Martin Marietta Materials, Inc.