Foldable and/or collapsible plastic/composite utility enclosure
A lid for a utility enclosure having a front end, a rear end, a right side, a left side, a top lid portion, and a bottom, defining an interior. Large reinforcement ribs are on an interior surface of the top lid portion and form a lattice-type structure. Small reinforcement ribs are mounted in spaces formed by the lattice type structure. The lid is made of glass fiber-reinforced polypropylene and metal bars or rebar are embedded in the large reinforcement ribs. The metal bars are positioned near a bottom of the large reinforcement ribs and spaced above the bottom. The physical structure of the lid and the lid's composition, consisting essentially of glass fiber-reinforced polypropylene, are constructed so that the lid withstands up to 33,750 pounds of force without breaking or being deformed.
1. A lid for a utility enclosure, comprising:
a) a front end, a rear end, a right side, a left side, a top lid portion, and a bottom, defining an interior;
b) first reinforcement ribs on an interior surface of the top lid portion;
c) metal bars embedded in the first reinforcement ribs; and
d) the lid is made of glass fiber-reinforced thermoplastic;
wherein the first reinforcement ribs form a lattice-type structure, with second reinforcement ribs mounted in spaces formed by the lattice type structure.
2. The lid of claim 1 , wherein the metal bars are positioned in the first reinforcement ribs near a bottom of the first reinforcement ribs and spaced above the bottom of the first reinforcement ribs.
3. The lid of claim 1 , further comprising the top lid portion having a recess with a lift pin therein.
4. The lid of claim 1 , further comprising the top lid portion having bolt holes to bolt the lid to the utility enclosure.
5. The lid of claim 1 , wherein the lid is constructed to withstand up to 33,750 pounds of force without breaking or being deformed.
6. A lid for a utility enclosure, comprising:
a front end, a rear end, a right side, a left side, a top lid portion, and a bottom, defining an interior;
first reinforcement ribs on an interior surface of the top lid portion;
metal bars embedded in the first reinforcement ribs; and
the lid is made of glass fiber-reinforced thermoplastic;
wherein the top lid portion has a recess with a lift pin therein.
7. The lid of claim 6 , wherein the metal bars are positioned in the first reinforcement ribs near a bottom of the first reinforcement ribs and spaced above the bottom of the first reinforcement ribs.
8. The lid of claim 6 , further comprising the top lid portion having bolt holes to bolt the lid to the utility enclosure.
9. The lid of claim 6 , wherein the lid is constructed to withstand up to 33,750 pounds of force without breaking or being deformed.
10. A lid for a utility enclosure, comprising:
a front end, a rear end, a right side, a left side, a top lid portion, and a bottom, defining an interior;
first reinforcement ribs on an interior surface of the top lid portion;
metal bars embedded in the first reinforcement ribs; and
the lid is made of glass fiber-reinforced thermoplastic;
wherein the lid is constructed to withstand up to 33,750 pounds of force without breaking or being deformed.
11. The lid of claim 10 , wherein the metal bars are positioned in the first reinforcement ribs near a bottom of the first reinforcement ribs and spaced above the bottom of the first reinforcement ribs.
12. The lid of claim 10 , further comprising the top lid portion having bolt holes to bolt the lid to the utility enclosure.