Abstract: A mold for casting a micro-scale structure includes an upper surface including a first cavity having a first depth. A negative pattern for an array of micro-scale structures is defined in a surface of the first cavity. The mold includes at least one second cavity having a second depth defined in the cavity outside of the negative pattern for the array of micro-scale structures. The at least one second cavity defines a negative pattern for a standoff of the micro-scale structure. A fabric retaining frame is disposed in the first cavity.

Abstract: A hybrid adhesion system includes an adhesion head including at least one suction cup and a handle and a vacuum generator mechanically coupled to the adhesion head. The vacuum generator includes at least one pneumatic cylinder having an internal volume in fluid communication with the at least one suction cup and a piston having a piston rod mechanically coupled to a manual actuator.

Abstract: A method of forming a metal mold for casting a micro-scale dry adhesive structure includes securing a master patch of material including a micro-scale dry adhesive structure on a plating fixture, electroforming the metal mold on the patch of material, and removing the metal mold from the plating fixture and patch of material.

Abstract: A mold for casting a micro-scale structure includes an upper surface including a first cavity having a first depth. A negative pattern for an array of micro-scale structures is defined in a surface of the first cavity. The mold includes at least one second cavity having a second depth defined in the cavity outside of the negative pattern for the array of micro-scale structures. The at least one second cavity defines a negative pattern for a standoff of the micro-scale structure. A fabric retaining frame is disposed in the first cavity.

Abstract: A mold for casting a micro-scale dry adhesive structure includes an upper surface including a first cavity having a first depth, a negative pattern for an array of micro-scale structures defined in a surface of the first cavity, and at least one second cavity having a second depth defined in the cavity outside of the negative pattern for the array of micro-scale structures, the at least one second cavity defining a negative pattern for a standoff of the micro-scale dry adhesive structure.

Abstract: A hybrid adhesion system includes an adhesion head including at least one suction cup and a handle and a vacuum generator mechanically coupled to the adhesion head. The vacuum generator includes at least one pneumatic cylinder having an internal volume in fluid communication with the at least one suction cup and a piston having a piston rod mechanically coupled to a manual actuator.

Abstract: A communication system is provided. The communication system includes a directional antenna, an antenna steering system to steer the directional antenna, a memory, and one or more processors coupled to the memory, the directional antenna, and the antenna steering system. The one or more processors are configured to identify a communication target and state information associated with the communication target, instruct the antenna steering system to steer the at least one directional antenna towards the communication target based on the state information, instruct the antenna steering system to perform a received power scan within a scan area to determine a maximum received power direction associated with a signal transmitted from the communication target, and track the maximum received power direction.

Abstract: A crawler device for traversing in a confined environment, searching victims or inspecting defections, comprises an elongated flexible drive shaft extending along a central axis between a proximal end and a distal end, a motor operatively connected to the drive shaft for turning the drive shaft, and a plurality of segments disposed over the drive shaft. Any two adjacent segments are joined by an articulate joint. Each segment has a wheel assembly including drive wheels. At least two segments further include a gear assembly operatively connecting the wheel assembly to the drive shaft. Turning the drive shaft provides distributed traction force to the drive wheels of the at least two segments, and thereby drives the crawler device.

Abstract: A corner post construction fashioned from corrugated paperboard of single or more thickness. The corner post is made from a unitary blank of corrugated paperboard, the blank being generally rectangular and provided with three parallel slit scorelines running generally longitudinally of the blank. The scorelines define four generally rectangular panels, with the two innermost panels being of substantially the same width, but with the first and second outermost panels being of respectively greater and different widths. The slit scorelines are reverse cut, with the middle coming in from one surface of the unitary blank and the outer two slit scorelines coming in from the other surface. All three scorelines extend completely through the blank, except for the outermost or facing layers of the corrugated board. After slit scoring, the two outermost panels are glued to their respective next adjacent innermost panels to form the corner post in its storage or shipping condition.

Abstract: A corrugated paperboard carton of the top lifting type and a unitary blank for forming it. The upper end of each sidewall is provided with a pair of flange panels, the latter folded upon themselves and glued together to form double thickness flanges extending around the upper rim of the carton, each positioned parallel to its respective sidewall. The free side edge of one flange panel carries a tongue received between next adjacent flange panels, the tongue glued in place. A flexible reinforcing strip is carried by one series of the pair of flange panels, the flexible strip extending from the tongue and across the flange panels. The ends of the reinforcing strip overlap, being separated by the thickness of the tongue. The carton is particularly useful in conjunction with lift trucks, the blades of such a truck being inserted between the flange panels and any corresponding sidewall for lifting the loaded carton.

Abstract: A corner fold structure for a paperboard bin. Large bulk bins formed of layers of corrugated paperboard laminated together, often are manufactured with a pair of 180 degree folds, the folds permitting shipment of the bins in a collapsed condition prior to (individually) erecting them. After erection, at least one of the layers or plys of corrugated paperboard, at or adjacent the original 180 degree fold, now being a 90 degree fold, is often distorted, the fold sometimes bulging at the outer portion of the outermost ply or layer. According to this invention, an elongated zone of adhesive is provided between the outermost and the next layer of corrugated paperboard, in combination with score lines adjacent to and parallel with the line of adhesive. This line of adhesive is substantially parallel with the fold line or axis of the 180 degree fold. By such adhering together of the outermost and next layer or ply along this zone, the final 90 degree fold exhibits substantial uniformity therealong.

Abstract: Apparatus and method for calculating and displaying the location of a defect inside a test specimen which has been detected by angled, ultrasonic beam, nondestructive inspection techniques are disclosed.

Abstract: A hexagonal paperboard container, which comprises:(a) a one-piece, upstanding, generally tubular, reinforcing member consisting of six, foldably connected, substantially rectangular, upstanding, reinforcing panels;(b) a one-piece body member having two sets of three, substantially rectangular, foldably connected, upstanding side wall panels and a bottom wall foldably connected along its opposite sides to the central side wall panel of each set of side wall panels;(c) the sets of side wall panels being located on opposite sides of the tubular reinforcing member and the side wall panels being bonded to the reinforcing panels;(d) two of said reinforcing panels which are bonded to the central side wall panels having abutting major flaps foldably connected thereto at the bottom edges thereof;(e) the four remaining reinforcing panels having minor flaps foldably connected thereto at the bottom edges thereof;(f) said major and minor flaps extending substantially horizontally and fitting together to form a bottom wall

Abstract: An improved method of and machine for making a bulk container. The container has a main body which is strengthened as compared to at least the container top or bottom by at least one additional material layers, these material layers comprising in combination a single face liner and attached fluting medium. The variable layer construction being accomplished by machine combination of material layers of different cross-machine dimension. The method of this variable dimension multi-layer combination encompasses a single lamination step of the several material layers to provide a strengthened bulk container blank and therefrom the improved container of this invention.

Abstract: An improved method of and machine for making a bulk container. The container has a main body which is strengthened as compared to at least the container top or bottom by at least one additional material layers, those material layers comprising in combination a single face liner and attached fluting medium. The variable layer construction being accomplished by machine combination of material layers of different cross-machine dimension. The method of this variable dimension multi-layer combination encompasses a single lamination step of the several material layers to provide a strengthened bulk container blank and therefrom the improved container of this invention.

Abstract: A sift-proof, shipping and dispensing container is provided. It comprises an inner container fabricated from a unitary blank and a separate outer container, also fabricated from a unitary blank. It is constructed from a rigid material such as corrugated board.