摘要:
The tubular element is made with a sleeve formed of a spun bonded polyester material that allows the passage of water and prevents the passage of soil when used for a drainage element. The tubular element is made with small diameters that allows the element to be coiled about a three-dimensional object when used as a cushioning device.
摘要:
An apparatus is provided for making drainage elements in a vertical manner. In one embodiment, a vertically disposed hollow rotatable mandrel with a screw-threaded flight is used for guiding a length of perforated pipe and filling an annular space between the pipe and a cylinder of mesh material secured at one end to the pipe with aggregate. A hopper is used for directing the aggregate into the space between the mandrel and a cylindrical outlet of the hopper. A motor for driving the mandrel may be reversed at a slower speed than the forward speed to stop delivery of aggregate and to allow time for the upper end of the cylinder of mesh material to be severed and secured to the pipe to form a drainage element as well as to allow severance of the pipe. In another embodiment, the perforated pipe is driven through the hopper and the aggregate flows under gravity into the mesh sleeve.
摘要:
The barrel of a machine for passing a light weight synthetic aggregate into a sleeve of disparate materials, such as netting and geotextile material, has a tongue extending from a portion of the periphery of the terminal end of the barrel to balance the air flow from the barrel and achieve a uniform filling of the sleeve. A ring is also disposed about the end of the barrel to blow jets of air onto the sleeve to block blowback of aggregate between the sleeve and barrel.
摘要:
A drainage element is made by filling a container with expanded thermoplastic elements that are in a non-cured state and that possess a degree of latent foaming ability. After filling the container with the non-cured elements, the elements are allowed to cure under ambient conditions during which the blowing agent remaining in the elements in a vapor state condenses allowing air to be drawn in while the elements expand. This expansion of the elements distends and rigidifies the container where the container is allowed to expand
摘要:
A preassembled drainage line element is fabricated with one or more flaps. In one embodiment, the drainage line unit is made from a webs of net material and a web of water permeable material and has two flaps at diametric points. The webs are formed about a barrel and the longitudinal edges are secured together, as by sewing a seam, to form a flap. The seam can be sewn at one of a plurality of spacings from the barrel to form a drainage line element of a different diameter from a standard diameter without need to adjust or replace other components of the fabricating machine.
摘要:
An article of manufacture is made by filling a container with expanded thermoplastic elements that are in a non-cured state and that possess a degree of latent foaming ability. After filling the container with the non-cured elements, the elements are allowed to cure under ambient conditions during which the blowing agent remaining in the elements in a vapor state condenses allowing air to be drawn in while the elements expand. This expansion of the elements distends and rigidifies the container where the container is allowed to expand or places an item packaged within a container of rigid construction under a tight fit.
摘要:
The package is made of cardboard with one or more plastic envelopes laminated to at least the side walls of the package. The envelopes are inflated from without the carton via a hollow needle that passes through a side wall of the package and a glue spot adhering the envelope in place. Air, nitrogen, foamable material or polystyrene beads may pass through the hollow needle to inflate the envelope(s).
摘要:
The drainage element is made with a periphery formed of a filter material that allows the passage of water and prevents the passage of soil and a second peripheral section of net material that allows the passage of water while the preventing the passage of the lightweight aggregate therein. The filter material is preferably made of spun bonded polyester and may be made of a biodegradable material such as starch.
摘要:
The drainage element is made with a periphery formed of a filter material that allows the passage of water and prevents the passage of soil and a second peripheral section of net material that allows the passage of water while the preventing the passage of the lightweight aggregate therein. The filter material is preferably made of spun bonded polyester and may be made of a biodegradable material such as starch.
摘要:
The preassembled drainage element is made with a water permeable membrane sleeve that has slits placed in the peripheral portion of the sleeve that is to form the bottom of the drainage element. The aggregate is post-expandable after fabrication of the drainage element so as to widen the slits and cause the periphery of the drainage element to bulge in the sections containing the slits.