Abstract: A method for packaging conventional silt fencing and a product produced by the method. Silt fabric is attached to a number of evenly spaced stakes. The stakes are then bunched together so that the silt fabric hangs between the stakes in descending loops. The bunching is continued until all the stakes lie close together in one plane. The loops of silt fabric are then wrapped tightly around the stakes. Securing bands are then placed around the assembly to create a flat pack.

Abstract: A tractor carries a vertically adjustable frame supporting a horizontal shaft for a supply roll of silt fence fabric. A vertical plow blade is mounted on the frame, and a vertical fin is supported directly behind the plow blade by a horizontal fabric guide bar attached to the frame. The fin receives an intermediate portion of the fabric directed around the guide bar for folding an edge portion of the fabric into a slot formed within the ground by the plow blade. The frame also supports a hydraulically actuated stake driver rearwardly of the supply roll and directly above the folded edge portion of the fabric. In one form, the stake driver comprises a vertically sliding ram having wide steps for receiving different length stakes. In another form, the stake driver comprises an impact hammer attached to a vertically and horizontally adjustable boom carried by the frame.

Abstract: A roof-screen system for supporting a roof screen on a roof, comprises a plurality of frame elements of round galvanized steel tubing configured as separate frames. The frames have a front element, a bottom element, and a diagonal brace element. A plurality of base supports are secured to the frame elements and sleeve connectors, including a base connector, an end connector, and a field connector which secure the frame elements together and to the base. A plurality of support elements are used for supporting the face panels to the front element of the separate frames.

Abstract: An inflatable chamber is secured to the ground to provide both a collection point for snow and a resilient barricade. The chamber may contain a light-weight and flexible metal or plastic support frame to provide increased strength or to hold a desired shape upon inflation. One or more longitudinally disposed flaps are preferably used with attached means for aiding in the securement of the chamber to the ground. Snow collection methods and ski slopes involving one or more inflatable barricades are also disclosed.

Abstract: The invention concerns a protective barrier comprising a net installed across a slope. The invention is characterized in that the net is maintained by several supports comprising each a first mast globally pointing downstream and whereof one end is fixed to an anchoring point in the ground and a second upright mast resting on the ground, the two masts intersecting side by side in a specifically selected geometrical configuration, in particular with guy cables installed between the masts.

Abstract: A fence post includes a weighted base and a vertical member. The vertical member has a first end and a second end. The first end is secured to and extends substantially vertically from the weighted base. A float is provided that is axially movable along the vertical member from the first end toward the second end. A stop is spaced from the first end to limit travel of the float along the vertical member. This fence post is suited for use in wet areas, as it floats with the weighted base keeping the fence post in a stable upright condition.

Abstract: A catchment net for rockfall catchment systems or the like has a net (12, 33) and support elements (16, 17, 18, 19). The net (12, 33) is retained on the outside, on at least two mutually-opposing sides, by least one peripheral cable (14, 15, 41, 42) in each case, and/or by a tensioning cable (22). Additional connection elements (25, 46), which connect the net (12, 33) to the support elements at its outside, make it possible for the energy incurred in the event of a rock (23, 31) or the like falling into the net to be absorbed to the maximum. The connection elements can, however, also be secured additionally or only in the interior of the net.

Abstract: Anchoring systems for aircraft arresting nets utilize frangible anchor links around lower horizontal straps of each net element of a composite arresting net. Each anchor link may be formed from flexible plastic sheet material, with openings through which an anchor cable passes and is secured to a runway surface by an anchor retainer. The anchor links provide ease of anchoring system assembly in the field and retain the bottom of the arresting net in proper position prior to engagement of the arresting net by an aircraft overrunning the runway. When an aircraft engages the net, the anchor links break to permit the net to conform to and safely stop the aircraft. Each anchor link may be perforated in its central portion or otherwise formed or specified to provide suitable frangibility in an arresting incident.

Abstract: Porous groynes for shoreline reclamation which include a plurality of spaced stanchions and at least one self supporting screen grid having a plurality of openings therein through which fluid and fluid conveyed solids may pass and wherein the screen grid means is formed of a high density polyethylene, polypropylene, polymers, co-polymers, polymer mixtures or laminates.

Abstract: A slope guard device having one or more panels formed of impervious material, interlocking along their periphery to form a rigid annular unit capable of encircling a planted area on a slope. The panels define an inner side adjacent to roots, and an outer side remote from roots, said panels of varying heights to allow a user to customize a slope profile to a slope where taller panels support the slope above the planted area. Vanes extend from the panels and project inwardly from the inner side of the panels. The vanes direct root growth. Vents are attachable to some of the vanes each having an open upper end and open lower end, said vents providing additional structural support for the slope guard. The vents guide steel stakes that can be driven into the ground.

Abstract: A tractor carries a vertically adjustable frame supporting a horizontal shaft for a supply roll of silt fence fabric. A flat vertical plow blade is mounted on the frame and has a front surface and a rear surface. A thinner flat vertical fin is supported directly behind the plow blade by a horizontal fabric guide bar attached to the frame. The fin has a downwardly and rearwardly curved front surface for receiving an intermediate portion of the fabric directed around the guide bar and for folding an edge portion of the fabric into the slot formed by the plow blade. After the ground is compacted by a tractor wheel, wood stakes are driven into the ground by a hydraulically actuated cylinder device mounted on a side of the tractor frame between the front and rear wheels, and the fabric is attached to the stakes.

Abstract: A flax based fence and manufacturing apparatus for reducing slope erosion and water runoff. The flax based fence and manufacturing apparatus includes a tubular casing filled with a specified density of flax fiber and flax stems forming an elongate and flexible structure. The density and porosity of the elongate structure is determined by the amount and length of flax fiber, flax stems and overall density of the same as positioned within the tubular casing. A receiving tube having a receiver opening receives the desired combination of flax fiber and flax straw which is forced through the receiving tube via an auger into the tubular casing. A plurality of gripping members provide a desired degree of frictional engagement of the tubular casing positioned about the receiving tube thereby allowing adjustment of the overall density of the elongate structure.

Abstract: A beach renourishment sand snare and a method or its employment. A series of metal posts are embedded in the sand, forming a line which is approximately perpendicular to the shore. Semi-rigid mesh panels are slidably placed and secured between adjacent posts. Each mesh panel, once immersed in the surf, tends to acumulate sand. The sand will eventually accumulate to the point that the shoreline will advance seaward of the mesh panel. Once this occurs the particular mesh panel is removed and transferred to the seaward end of the line of posts. Likewise, the posts on the landward side can be removed and transfered to the seaward side, thereby “walking” the assembly to seaward. The process thereby accumulates sand and advances the shoreline.

Abstract: A silt fence system employs silt fencing that is supported along the fence length with stakes. The stakes have a polymer or plastic outer casing, and either a flexible core or a core segment of rigid material such as cement. The outer casing provides resistance to the elements and the flexible material provides the give to handle hydraulic forces with breaking of the stake, as is the case when wooden stakes are used. The system employs the rigid core stakes in situations where hydraulic forces are large enough that the combination of the plastic outer casing and flexible core is insufficient to maintain stake position.

Abstract: A method and apparatus for land reclamation which includes utilizing groyne-like structures including spaced stanchions to which are mounted porous screens and wherein the screens are vertically adjustable as material is deposited during the reclamation process. In some embodiments the screens are carried by sleeves slidable on spaced stanchions and in other embodiments the screens may be sectional and carried by multiple sleeves.

Abstract: A roof mount includes a base member and an attachment mount. The base member has a protrusion, and the attachment mount defines a hollowed region for receiving the protrusion to form a compression fitting. A substantially leak proof assembly is formed when the attachment mount is placed against the base member with a sealing material therebetween and a connecting element for coupling the attachment mount to the base member extends through the sealing material. A spacer extends the base member to a roof surface. The spacer is a hollow base stand, a tube, or a side wall of the base member. The spacer has a surface area covering the roof deck less than the surface area of a side of the base member facing the roof deck. The invention includes a method of limiting wind uplift of a roof.

Abstract: The invention concerns a protective element (1) comprising a plate (2) with a first longitudinal edge (3) and a second longitudinal edge (4) spaced by a distance (D) from each other, and a pivot bearing (5, 5′) arranged substantially parallel to the first longitudinal edge and/or the second longitudinal edge, designed for transferring forces, whereby the plate (2) is arranged mobile on a substructure (6) to absorb the forces exerted on the protective element, in particular on a protection system against floods and avalanches, and capable of being arranged mobile relative to said substructure (6), in a pivot zone (S).

Abstract: A catchment net for rockfall catchment systems or the like has a net (12, 33) and support elements (16, 17, 18, 19) retaining this. The net (12, 33) is retained on the outside, on at least two mutually-opposing sides, by least one peripheral cable (14, 15, 41, 42) in each case, and/or by a tensioning cable (22). Additional connection elements (25, 46), which connect the net (12, 33) to the support elements at its outside, make it possible for the energy incurred in the event of a rock (23, 31) or the like falling into the net to be absorbed to the maximum. The connection elements can, however, also be secured additionally or only in the interior of the net.

Abstract: A method and device for preventing avalanches and other snow slides. The snow mass is divided into individual layers or an existing division is used and the individual layers are mixed together. The dividing and mixing can take place horizontally and/or vertically and compacting can take place at the same time. The device consists essentially of a curved retaining bar (3) which is anchored to the slope and bears at least one lifting body (15). The lifting body is preferably arranged at a certain angle to the retaining bar.

Abstract: A device capable of being attached to a roof as part of a snowguard system to prevent snow or ice from falling off the roof. The snowguard system includes a plurality of mounting brackets each having a bracket portion with at least one bore defining at least one cutout region therethrough. This cutout region has a first circumferential shape. At least one pipe is slidably inserted through one of the bores in each of the bracket portions. Each pipe has a circumferential shape substantially similar to that of each cutout region to thereby prevent rotation of the pipe with respect to the bracket. At least one flag is provided for attachment to the pipe. Each flag has an interior which is substantially geometrically similar to at least a portion of the circumferential shape of the pipe, thereby allowing the interior portion of the flag to lockingly engage the exterior of one of the pipes such that the flag does not rotate with respect to the pipe to which it is attached.

Abstract: A wire netting, preferably used as a gravel screen or for protecting a soil surface layer is woven from corrosion-resistant wires and either fitted on the soil surface or secured in an almost upright position on a slope or something similar. The wires in the wire netting are manufactured from heavy-duty steel, which has a nominal strength in the region of 1000 to 2200 N/mm2 and steel wire may be used for this for stranded wires or spring steel wire. The wire netting is manufactured from rectangular, diagonal netting and it has a three-dimensional, mattress-like structure.

Abstract: The present invention comprises a block having a first and a second exterior side wall, a base and a top. A groove is located in the base of the block, the groove defining a first and a second interior side wall and a top interior surface. The block is locatable on a metal roof by placement of the groove about a segment of the seam formed by overlapping adjacent roofing panels. A hole is located in the block between the top of the block and the groove, and a locking device is locatable in the hole. Initially locating the locking device into the hole causes the locking device to be positioned between a portion of the seam of the metal roof and a portion of the first interior side wall of the block. Further translocation of the locking device into the hole causes the locking device to engage the portion of the seam of the metal roof and the portion of the first interior side wall of the block, thereby securing the block to the metal roof.

Abstract: A fence system has fence posts, or attachments to fence posts, which have slots that hold a plurality of horizontal fence elements without the aid of screws or nails. A plurality of the horizontal fence elements are placed in individual slots, one above the other to form the fence between posts. The slots are positioned along the posts so that the horizontal fence elements overlap preventing one from looking through the fence between horizontal elements. The horizontal fence elements may be slightly incline to permit air to circulate through the fence.