Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7381007 | Monolithic pour crack control system and method of use A joint assembly for controlling fractures along a fracture axis in a monolithic pour concrete structure is provided. The concrete structure is defined by a first edge form section and a generally opposed second edge form section. The joint assembly is characterized... | 06/03/2008 |
| 7334962 | Monolithic pour crack control system and method of use A joint assembly for controlling fractures along a fracture axis in a monolithic pour concrete structure is provided. The concrete structure is defined by a first edge form section and a generally opposed second edge form section. The joint assembly is characterized... | 02/26/2008 |
| 7234893 | Road surfacing material over roadway joints, method of manufacturing, and method using the same A method of making a membrane assembly by forming at least a pair of bottom sheet membranes and at least one top sheet membrane, wherein the bottom sheet membranes are adapted to attach to and cover respective pavement sections of a roadway, and constructing each to... | 06/26/2007 |
| 7228666 | Device for equipping an expansion joint, in particular an expansion joint between concrete slabs A device for making a connection between concrete slabs, the device having two modules derived from sheets, each module having a number of flat elements which form projections, each module further having elements in the form of a right angle, having a flat part inte... | 06/12/2007 |
| 7143560 | Cover assembly for structural members A cover assembly includes an elongated resilient cover for bridging a gap between horizontal structural members. The upper face surface of the resilient cover has spaced apart ribs extending transverse to the flow of traffic and an opposite surface formed with load ... | 12/05/2006 |
| 6997640 | Backer rod for expansion joints A backer rod adapted for insertion into a construction joint having a polymeric foam body of closed-cell construction and a foraminous skin with both open and closed cells. The backer rod, when compressively inserted into a construction joint, is impervious to hot a... | 02/14/2006 |
| 6994354 | Vibrationally decoupling gasket A gasket includes a fist sealing portion, a second sealing portion, and an elastic arm sealingly connecting between the two. The first sealing portion sealingly engages a first member and the second sealing portion sealingly engages a second member. The elastic arm ... | 02/07/2006 |
| 6962462 | Method of forming, installing and a system for attaching a pre-fabricated pavement slab to a subbase and the pre-fabricated pavement slab so formed A pre-fabricated pavement slab having a binder distribution system and an interconnection system formed for attachment of the bottom surface of the slab, wherein both the binder distribution system and the interconnection system are accessible from the top surface o... | 11/08/2005 |
| 6931807 | Bridging device for joint gaps A bridging device for joint gaps (1) between building parts (2, 3) including bridge parts, with an expansion joint construction (4) bridging a joint gap (1). The expansion joint construction (4) permits position changes of the buil... | 08/23/2005 |
| 6893187 | Expansion joint structure for concrete slabs An expansion joint structure to be placed between adjacent concrete slabs in a concrete slab system comprises a first profile element to be attached to an edge of a first concrete slab, and a second profile element to be attached to an edge of a second concrete slab... | 05/17/2005 |
| 6751919 | Sealing element for expansion joints A sealing element for the recessed seat of an expansion joint in a concrete structure having an elastomeric profile (20) formed by two longitudinal lateral flanges (21) to be fixed to the end edges of the concrete structure (11), and a central p... | 06/22/2004 |
| 6666618 | System and method for sealing roadway joints A system for sealing joints in roadways wherein nose plates are attached to each side of the joint to form a gap between the nose plates. A lower seal element is located in the gap between the nose plates. A vapor barrier is provided that extends between ... | 12/23/2003 |
| 6561728 | Method for producing a road joint, and joint obtained by the method The joint is installed between two sections of roadway respectively supported by two contiguous structural elements. A driving surface is formed by a surface covering applied on top of the elements and interrupted above the gap separating them to form a t... | 05/13/2003 |
| 6532708 | Expansion and seismic joint covers A seismic/expansion joint seal and cover comprises a cover plate, and a central spine extending downwardly from said cover plate. At least one layer of a resilient compressible foam sealant is provided on each side of the spine.... | 03/18/2003 |
| 6499265 | Expansion joint cover An expansion joint cover for bridging an expansion gap between first and second building floor members has a pivot frame adapted to be affixed to the first building floor member, the pivot frame including a base portion and a longitudinally continuous bea... | 12/31/2002 |
| 6484462 | Seismic expansion joint cover A seismic expansion joint cover includes a bridge panel having one end supported for movement in the y-axis direction and against movement in the x-axis direction relative to a floor A on one side of a motion-absorbing gap and supported at the other end f... | 11/26/2002 |
| 6289645 | Shuttering element The invention relates to a shuttering element for separating a concrete section into concrete subsections. The shuttering element is of strip-like form and is adapted widthwise to the thickness of the concrete section. It comprises at least a strip-like s... | 09/18/2001 |
| 6022169 | Expansion joint apparatus Expansion joint apparatus which can be installed at junctions between upper structures of a road and a bridge. In a state of applying the apparatus to a bridge, each wheel in a same shaft of a vehicle passes the apparatus at different time spots, that is,... | 02/08/2000 |
| 6014849 | Joining method and joining structure as well as form for concrete products The present invention relates to a joining method and a joining structure as well as a form for concrete products. A protruding portion provided at the front end of a seal member of elastic material attached to one concrete product is inserted through an ... | 01/18/2000 |
| 6012869 | Expansion joint and seal containing intersections An expansion joint and seal for an expansion joint for use in structures where the joint has an intersection uses a seal with a solid thick keel extending along a lower edge of a central portion in an area of the intersection. The keel commences in a tran... | 01/11/2000 |
| 5964069 | Bridging means for joint gap A bridging means for joint gaps between building components with an expansion joint construction bridging the joint gap, which is mountable on both sides of the joint gap on the building parts, is characterized in that at least between one of said buildin... | 10/12/1999 |
| 5791111 | Sealing device for a settlement joint A sealing device (1) for a settlement joint (2) between two building members (3 and 4) consists of two anchoring units (5) connecting with the building members (3,4), placed on opposite sides of the settlement joint (2), as well as an elastic bridge unit ... | 08/11/1998 |
| 5649784 | Expansion joint system and method of making A method of making a flexible, yet durable expansion joint that is at a general even grade with abutting roadway surfaces. The method includes cutting a recess into adjacent roadway slabs having a gap therebetween, and thereafter cleaning the recesses. A ... | 07/22/1997 |
| 5611181 | Seismic expansion joint cover A seismic expansion joint cover for concealing an expansion gap between building members comprises retainers attached to building members on each side of the expansion gap and a cover spanning the expansion gap and overlying at least portions of the first... | 03/18/1997 |
| 5607253 | Dilatation joint element To avoid leakage in concrete structures with dilatation joints and to prevent dirt from accumulating in the joints there has been developed a dilatation joint element which is easy to mount, reliable and essentially maintenance-free. The dilatation joint ... | 03/04/1997 |
| 5338130 | Extruded thermoplastic elastomer expansion joint An expansion joint retainer is used in fastening a flexible elastomeric seal or strip seal to a structural slab. The retainer has a main body made from a first material. The main body has a thickness selected to permit emplacement of the retainer on the e... | 08/16/1994 |
| 5292205 | Backup protection for sealed structural expansion joints A retrofit for diverting water leaking into an elevated expansion joint is formed by lowering an applicator that carries an adhesively treated water run-off arrangement into the joint and pressing the arrangement against inside walls of the joint with an ... | 03/08/1994 |
| 5282693 | Elastomeric sealing apparatus for highway joints An elastomeric sealing apparatus for waterproofing a joint opening between two generally parallel structural members in highways, bridges, parking structures and the like. The sealing apparatus comprises an elongated web shaped elastomeric body member whi... | 02/01/1994 |
| 5171100 | Preformed expansion joint system An expansion joint (14) includes a preformed resilient center section (16), which is preferably formed of epoxy modified urethane, having reinforcing members (18) bonded along opposite edges thereof in order to provide a better bond width the adhesive bed... | 12/15/1992 |
| 5168683 | Joint member and/or a method of forming a joint A joint member (1) is substantially elongated and has a stabilizing parts (2, 3) which retain the joint member in a desired orientation in use. Seal members (6, 7) are provided on the joint member and engage sides of an aperture into which the joint membe... | 12/08/1992 |
| 5141358 | Protection of elevated roadways at expansion joints A retrofit for diverting water leaking into an elevated expansion joint is formed by lowering an applicator that carries an adhesively treated water run-off arrangement into the joint and pressing the arrangement against inside walls of the joint with an ... | 08/25/1992 |
| 5125763 | Joint for connecting roadway slabs A road joint is disclosed formed by two rigid frames (4) joined together by a flexible strip (2) formed by an elastomer body having in cross section the form of an upside-down truncated V with thick legs and reinforced by a central horizontal rigid plate ... | 06/30/1992 |
| 5092091 | Concrete control key-joint and divider form A concrete control key-joint and divider form made from plastic which is substantially wedge-shaped with vertically spaced holes to receive plastic stakes with the stakes being secured to the plastic form by plastic bolts at substantially its mid-section,... | 03/03/1992 |
| 5088256 | Concrete joint with spring clip retained insert and bottom seal A concrete joint in concrete slab structures in which the joint includes an insert that is retained in centered position in a slot or recess formed in the upper surface of a concrete slab generally in alignment with a crack or fracture line extending down... | 02/18/1992 |
| 5082394 | Expansion joint seals and methods and apparatus for making and installing the same An expansion joint seal for sealing the gap between adjacent deck members of a bridge, for example, includes a strip of elastomeric material having an expansion portion and side marginal portions. According to one aspect of the invention, the expansion po... | 01/21/1992 |
| 5071282 | Highway expansion joint strip seal An expansion joint strip seal for use between spaced apart ends of sections of a highway, bridge, or the like, the strip seal having an elongate metallic rail with a C-shaped cavity therein embedded in the end of one of the sections, a second elongate met... | 12/10/1991 |
| 5028168 | Device for the interconnection of two roadway parts separated by an expansion joint The device for the interconnection of two roadway parts (1a, 1b) separated by an expansion joint (3) consists of a plurality of joint strips (2) arrnaged end to end and in which each joint strip (2) comprises at least one deformable zone (4) extending par... | 07/02/1991 |
| 4963056 | Expansion joint and method of manufacture A bridge expansion joint is provided comprising an pair of blocks interconnected by a flexible sealing profile. Each block is formed by at least three vertically stacked layers made from plastic concrete compound. The two lower layers of plastic concrete ... | 10/16/1990 |
| 4942710 | Fire-rated expansion joint having three degrees of freedom An expansion joint assembly for use between elongated, adjacent, relatively shiftable, joint-defining structural sections (e.g., floor sections) is provided which exhibits three degrees of freedom for accommodating essentially all relative movement of str... | 07/24/1990 |
| 4936704 | Expansion joint filler strip holder An expansion joint filler strip holder and an associated method are disclosed. The device consists of a ground engaging member to which a filler strip holder is attached. In one embodiment, the filler strip holder consists of two parallel rails to which a... | 06/26/1990 |
