Abstract: A horizontal boring rig that may be used for the excavation of horizontal bores in soil or other substrates without the use of tracks or other supporting equipment. The boring rig may include a hydraulic motor or other powered device for turning an auger or other excavation tool. The hydraulic motor may be pivotally mounted to the boring rig and drive the bore string through an intermediate shaft including a universal joint. The degree of freedom provided by the universal joint and motor mounting prevents breakage of the boring string from deflection or kickback. A front guide may be used to prevent excessive deflection of the universal joint. The boring rig may ride on skids that allow the rig to follow a working grade and may incorporate spoil channels for directing excavated material around or away from the skid feet for improved accuracy in following the working grade.

Abstract: A horizontal boring rig that may be used for the excavation of horizontal bores in soil or other substrates without the use of tracks or other supporting equipment. The boring rig may include a hydraulic motor or other powered device for turning an auger or other excavation tool. The hydraulic motor may be pivotally mounted to the boring rig and drive the bore string through an intermediate shaft including a universal joint. The degree of freedom provided by the universal joint and motor mounting prevents breakage of the boring string from deflection or kickback. A front guide may be used to prevent excessive deflection of the universal joint. The boring rig may ride on skids that allow the rig to follow a working grade and may incorporate spoil channels for directing excavated material around or away from the skid feet for improved accuracy in following the working grade.

Abstract: An abrasive article is provided that has a backing having opposed first and second major surfaces, an abrasive layer disposed on the first major surface, and a plurality of protrusions extending outwardly from the second major surface. The protrusions comprise a polymer having a Shore A hardness ranging from 5 to 90. These articles provide an alternative sanding solution enabling abrasive articles lacking an attachment layer to be handled effectively and efficiently, providing for a technically superior abrasive sheet on the marketplace that does not use or require an attachment layer.

Abstract: Various embodiments disclosed relate to an abrasive sheet. The abrasive sheet includes a first layer including an abrasive major surface and an opposite second layer defining a second major surface. The second major surface includes a plurality of protrusions extending outwardly from the second major surface. The protrusions include a first polymer component having at least one of a Shore A hardness ranging from about 5 to about 100 and a Shore D hardness ranging from about 1 to about 70. The first layer and the second layer are directly joined to each other.

Abstract: An abrasive article having a removable support sheet having a first major surface. An image layer containing inks applied over the first major surface. A polyurethane backing layer having a first major backing surface located adjacent to the image layer and a second major backing surface opposite the first major surface. A functional layer comprising an abrasive layer applied to the second major surface; the abrasive layer comprising a make coat, abrasive particles and a size coat.

Abstract: Various embodiments disclosed relate to an article. The article includes a first layer defining a first major surface of the article. The first layer includes a plurality of protrusions extending outwardly from the first major surface. The protrusions comprise an elastic polymer component. The article further includes a second layer opposite the first layer, which at least partially defines a second major surface of the article. The first layer is disposed over a range of about 5% surface area of the second layer to about 99% surface area of the second layer. The first layer and the second layer are in direct contact.

Abstract: Various embodiments disclosed relate to an abrasive sheet. The abrasive sheet includes a first layer including an abrasive major surface and an opposite second layer defining a second major surface. The second major surface includes a plurality of protrusions extending outwardly from the second major surface. The protrusions include a first polymer component having at least one of a Shore A hardness ranging from about 5 to about 100 and a Shore D hardness ranging from about 1 to about 70. The first layer and the second layer are directly joined to each other.

Abstract: A flexible abrasive article is provided with a first, non-tacky base layer having opposed first and second major surfaces. An ink layer is disposed on the first major surface of the first base layer, while a second, thermoplastic base layer is disposed on the ink layer whereby the ink layer is located between the first and second base layers. Disposed on the second base layer is an abrasive layer such that the second base layer is located between the abrasive layer and the ink layer. Compared with conventional printed flexible adhesive articles, the provided articles improved robustness while avoiding manufacturing difficulties related to flexographic printing onto abrasive coated articles.

Abstract: Provided herein are abrasive compositions that use surfactants containing block copolymers of both propylene oxide and ethylene oxide moieties. Abrasive compositions derived from these copolymers were capable of providing both superior levels of cut rate while preserving a high quality surface finish on gelcoat surfaces comparable to those achieved using conventional rubbing compounds.

Abstract: A flexible abrasive article is provided with a first, non-tacky base layer having opposed first and second major surfaces. An ink layer is disposed on the first major surface of the first base layer, while a second, thermoplastic base layer is disposed on the ink layer whereby the ink layer is located between the first and second base layers. Disposed on the second base layer is an abrasive layer such that the second base layer is located between the abrasive layer and the ink layer. Compared with conventional printed flexible adhesive articles, the provided articles improved robustness while avoiding manufacturing difficulties related to flexographic printing onto abrasive coated articles.

Abstract: A structural support beam for use in buildings, bridges, mechanical frames and the like to resist bending due to gravitational and external forces comprising a top substantially flat flange disposed in fixed spaced relationship relative to a bottom substantially concave flange by an interconnecting web and a lower stabilizing brace disposed to engage the opposite end portions of the bottom substantially concave flange and the opposite end portions of the interconnecting web to reinforce the interconnection therebetween.

Abstract: Disclosed herein are glass articles, such as light guide plates, comprising a first surface (101) and an opposing second surface (102), wherein the first surface comprises an array of light extraction features (103) having a diameter of at least about 10 microns and a height ranging from about 1 micron to about 10 microns. Display devices comprising such glass articles are also disclosed herein as well as methods for producing such glass articles. The method involves depositing ink on a first surface of a glass substrate to form an array of coated and uncoated surfaces and etching the uncoated surfaces.

Abstract: Provided herein are abrasive compositions that use surfactants containing block copolymers of both propylene oxide and ethylene oxide moieties. Abrasive compositions derived from these copolymers were capable of providing both superior levels of cut rate while preserving a high quality surface finish on gelcoat surfaces comparable to those achieved using conventional rubbing compounds.

Abstract: A flexible abrasive article is provided with a first, non-tacky base layer having opposed first and second major surfaces. An ink layer is disposed on the first major surface of the first base layer, while a second, thermoplastic base layer is disposed on the ink layer whereby the ink layer is located between the first and second base layers. Disposed on the second base layer is an abrasive layer such that the second base layer is located between the abrasive layer and the ink layer. Compared with conventional printed flexible adhesive articles, the provided articles improved robustness while avoiding manufacturing difficulties related to flexographic printing onto abrasive coated articles.

Abstract: An abrasive article is provided that has a backing having opposed first and second major surfaces, an abrasive layer disposed on the first major surface, and a plurality of protrusions extending outwardly from the second major surface. The protrusions comprise a polymer having a Shore A hardness ranging from 5 to 90. These articles provide an alternative sanding solution enabling abrasive articles lacking an attachment layer to be handled effectively and efficiently, providing for a technically superior abrasive sheet on the marketplace that does not use or require an attachment layer.

Abstract: A structural support beam for use in buildings, bridges, mechanical frames and the like to resist bending due to gravitational and external forces comprising a top substantially flat flange disposed in fixed spaced relationship relative to a bottom substantially concave flange by an interconnecting web and a lower stabilizing brace disposed to engage the opposite end portions of the bottom substantially concave flange and the opposite end portions of the interconnecting web to reinforce the interconnection therebetween.

Abstract: Collapsible fabric pods may include a plurality of posts attached to a base and a fabric bin array attached to the plurality of posts, wherein the plurality of posts are displaceable between an upright position and collapsed position. When the plurality of posts are in the upright position, the plurality of posts support the fabric bin array above the base, and when the plurality of posts are in the collapsed position, the plurality of posts are decoupled or displaced and the fabric bin array is in a compressed position on top of the base.

Abstract: A structural support beam for use in buildings, bridges, mechanical frames and the like to resist bending due to gravitational and external forces comprising a top substantially flat flange disposed in fixed spaced relationship relative to a bottom substantially concave flange by an interconnecting web and a lower stabilizing brace disposed to engage the opposite end portions of the bottom substantially concave flange and the opposite end portions of the interconnecting web to reinforce the interconnection therebetween.

Abstract: An inventory system includes a pallet and a base for palletizing or unpalletizing a mobile drive unit. The pallet has a set of openings corresponding with features of the mobile drive unit. The mobile drive unit features may extend into the pallet openings. The base includes protrusions corresponding to the pallet openings. Engaging the pallet and base can position the base protrusions in the pallet openings. Positioning the base protrusions in the pallet openings can displace the mobile drive unit features from the pallet openings and/or provide a surface upon which the mobile drive unit can navigate.

Abstract: A flexible abrasive article includes a unitary backing having first and second opposed major surfaces and comprising a polyurethane. In some embodiments, the backing has an average thickness of from 4 to 6 mils (102 to 152 microns), a tensile strength of 500 to 3200 psi (3.45 to 22.1 MPa), and an ultimate elongation of 230 to 530 percent. In some embodiments, the flexible abrasive article has a tensile strength of 400 to 2400 psi (2.8 to 16.5 MPa), and a ultimate elongation of 180 to 380 percent. An abrasive layer is disposed on and secured to the unitary backing.