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107 results about "Fda approval" patented technology

Universal improved particulate matter delivery device

The present invention includes an apparatus for delivery of pressurized particulate matter against a surface or target to abrade, texture, sandblast, etch, erase, cut, penetrate, smooth, clean, polish, harden and / or deburr the surface or target. The invention is expected to be used in slightly different embodiments, both by dentists and oral hygienists to clean teeth, and by hobbyists, although numerous other uses are within the contemplation of the inventors. The dental embodiment features a prefilled, sealed, and disposable fluidizing chamber and cannula assembly that avoids contamination and which has been approved by the FDA for dental use. The general utility embodiment features a refillable fluidizing chamber and detachable cannula.Included is a fluidizing chamber having a discharge end of an inlet tube that is disposed below or overlaps the intake end of the outlet tube such that the discharge of the inlet tube blows the particulate matter into the fluid above the intake end of the outlet tube, thereby suspending it therein, without clogging. The invention further provides for a duckbill check valve to prevent backflow of particulate matter when the chamber is disconnected from the pressurized fluid source or there is a drop in pressure from said source. Included with the general utility embodiment are a refill aperture and removable refill aperture plug to facilitate recharging the fluidizing chamber with particulate matter using a filling cartridge.
Owner:RED MOUNTAIN

Apparatus and method for stretch-wrapping articles

Apparatus and process for stretch wrapping articles, especially heads of lettuce, wherein a roll (23) of film (24) is supported on a housing (21), and the film is supplied from the roll around a dancer roller (50) and film feed roller (51) to a pair of film feed grippers (33, 34) which grip a leading edge of the film and advance it past an opening (26), whereupon a clamp (27) engages the leading edge of the film to hold it while the grippers release and return to their home position. Additional clamps (28-32) then engage the film to hold it in place over the opening. A head of lettuce (L) is placed on the film in centered relation to the opening, and a ram (37) engages the lettuce and pushes it against the film to stretch the film through and below the opening. Gathering bars (38, 39) engage the film stretched between the opening and the head of lettuce to gather the film in a first direction, and a U-channel (40) and sealing and trimming mechanism (41) gather the film in a second direction to produce a narrow necked down section of gathered film, fuse and seal the necked down section to produce a wrapped head of lettuce, trim excess film from the lettuce, and release the wrapped head of lettuce to drop onto a take away conveyor. The film (24) is a polyethylene based multi-layer film with an outer polypropylene layer for added gloss, slip and clarity, has a 300% stretch capability, is FDA approved for direct food contact, has an anti-fog additive for moisture dissipation during temperature fluctuations, is thirteen microns thick, and has a width of sixteen inches.
Owner:INT PAPER CO

Apparatus and method for stretch-wrapping articles

Apparatus and process for stretch wrapping articles, especially heads of lettuce, wherein a roll (23) of film (24) is supported on a housing (21), and the film is supplied from the roll around a dancer roller (50) and film feed roller (51) to a pair of film feed grippers (33, 34) which grip a leading edge of the film and advance it past an opening (26), whereupon a clamp (27) engages the leading edge of the film to hold it while the grippers release and return to their home position. Additional clamps (28–32) then engage the film to hold it in place over the opening. A head of lettuce (L) is placed on the film in centered relation to the opening, and a ram (37) engages the lettuce and pushes it against the film to stretch the film through and below the opening. Gathering bars (38, 39) engage the film stretched between the opening and the head of lettuce to gather the film in a first direction, and a U-channel (40) and sealing and trimming mechanism (41) gather the film in a second direction to produce a narrow necked down section of gathered film, fuse and seal the necked down section to produce a wrapped head of lettuce, trim excess film from the lettuce, and release the wrapped head of lettuce to drop onto a take away conveyor. The film (24) is a polyethylene based multi-layer film with an outer polypropylene layer for added gloss, slip and clarity, has a 300% stretch capability, is FDA approved for direct food contact, has an anti-fog additive for moisture dissipation during temperature fluctuations, is thirteen microns thick, and has a width of sixteen inches.
Owner:INT PAPER CO
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