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US 5,659,997 AGranted
Bag for the cultivation of mushroom spawn
AssigneeCompac International, Inc.
InventorsGregory S. Sprehe, Lester Siebert, William Towne
Life of this patent
Estimating the term…
Abstract
An improved bag for the cultivation of mushroom spawn is provided the bag has continuous gas permeable sealing strips sealed to the inside walls of the bags which covering openings in the bag, so as to allow the bag to be vented without loss of moisture. The openings and sealing strips are positioned close to the top and bottom of the bag so as to maximize air flow through the mushroom spawn without creating dry spots, thereby improving spawn yield.
Claims19
An improved bag for the production of mushroom spawn, said bag comprising:
- front and back walls having a plurality of openings disposed therethrough, said openings being arrayed in a pair of parallel rows proximate, respectively, said top and bottom of said bag;
- said bag having a top and a bottom, and left and right side panels;
- a plurality of continuous gas permeable sealing strips sealed to said walls and covering each of said openings, said sealing strips respectively covering said rows, each sealing strip having a length sufficient to cover all of the openings in the row that it covers and a width less than the distance between said top and bottom of said bag, said openings and said gas permeable sealing strips being attached over a plurality of said openings so as to enhance moisture retention within said bag and thereby reduce dry spots in said mushroom spawn and improve spawn yield;
- and, said continuous gas permeable sealing strips being of an adhered slowly moisture permeable material to contribute to manufacturing ease of said bag and a reduction in the mount of labor associated with the production of said bag.
1 more element
A bag for the production of mushroom spawn, said bag comprising:
- front wall having a plurality of substantially aligned openings disposed therethrough, a top and a bottom, and left and right sides;
- and
- a continuous strip of gas permeable film sealed horizontally above and below said openings from said left side of said bag to said right side of said bag to thereby form a continuous seal extending across the top, bottom and each side of said openings, and sealed vertically on said left and right sides of said bag and on each of said openings, said continuous strip of sufficient size and attached to cover and seal said openings, said openings and said continuous strip of gas permeable film of a sufficient size on said closed front wall to enhance moisture retention within the bag and thereby reduce dry spots in said mushroom spawn and improve spawn yield;
- and, said continuous strip of gas permeable film being unitary, integral and of substantially uniform size to contribute to manufacturing ease of said bag and a reduction in the amount of labor associated with the production thereof.
1 more element
A bag for the production of mushroom spawn, said bag comprising:
- a front wall, and a closed back wall, said bag having a sealably closable top, a flat, closed bottom, a flat, closed left side, and a flat, closed right side, said bag having an inside surface and an outside surface;
- exactly two parallel, spaced apart rows of apertures through only said front wall of said bag, each of said apertures being in the general shape of an oval having a major axis in the direction between said left and right sides;
- and,
- a pair of parallel, spaced apart, strips including gas permeable sealing material, said strips respectively covering said rows of apertures and being attached to the outside surface of said front wall of said bag with gas permeable sealing material covering each of said oval apertures, each said strip extending in the direction between said left and right sides, said apertures of sufficient size and said strips of gas permeable sealing material being on said front wall to enhance moisture retention within said bag;
- and, said strips of gas permeable fill being substantially unitary, integral and of uniform porosity to contribute to manufacturing ease of said bag and a reduction in the mount of labor associated with the production thereof.
2 more elements
Dependencies are inferred from the claim text.