초록 ▼

A cover assembly for covering a vessel comprising a main cover comprising at least a first outlet opening adapted for connection to a pipe, and a second opening surrounded by a flat region adapted for placement of a gasket; an access cover comprising a flat region adapted for mating with the flat re

A cover assembly for covering a vessel comprising a main cover comprising at least a first outlet opening adapted for connection to a pipe, and a second opening surrounded by a flat region adapted for placement of a gasket; an access cover comprising a flat region adapted for mating with the flat region of the main cover; and provisions for the sealing of at least one cord passing between the main cover and the access cover. In other embodiments, the cover assembly is provided with an engagement feature adapted for engagement with a hook-shaped hanger rod. Sewage basin assemblies are also provided which incorporate these cover assemblies.

대표청구항 ▼

I claim: 1. A sewage handling system comprising: a. a basin for receiving a liquid, said basin comprising a body with at least one inlet opening and an open top comprising an annular flange having a flat region; b. a cover assembly disposed upon said flat region of said basin and comprising: i. a m

I claim: 1. A sewage handling system comprising: a. a basin for receiving a liquid, said basin comprising a body with at least one inlet opening and an open top comprising an annular flange having a flat region; b. a cover assembly disposed upon said flat region of said basin and comprising: i. a main cover comprising a perimeter including a lower annular edge surface fastened to said annular flange of said basin, at least a first opening, and a second opening surrounded by a first flat flange, said first flat flange surrounded by said lower annular edge of said perimeter; ii. an access cover comprising a second flat flange removably secured to said first flat flange of said main cover; and iii. a gasket disposed between said first flat flange of said main cover and said second flat flange of said access cover, and comprising a first portion of a cord seal disposed in an interface between said main cover and said access cover; iv. an engagement feature comprised of at least one horizontal channel, and a first vertical cavity; c. a pump disposed in said basin and operatively connected by a discharge pipe to said first opening of said main cover; and d. a level switch assembly comprising a hook-shaped hanger rod engaged with said engagement feature of said cover assembly, and at least one level switch attached to said hook-shaped hanger rod. 2. The sewage handling system as recited in claim 1, wherein said at least one level switch is a float switch. 3. The sewage handling system as recited in claim 1, wherein said hanger rod is J-shaped. 4. The sewage handling system as recited in claim 1, further comprising a second level switch attached to said hook-shaped hanger rod. 5. A sewage handling system comprising: a. a basin for receiving a liquid, said basin comprising a body with at least one inlet opening and an open top comprising an annular flange having a flat region; b. a cover assembly disposed upon said flat region of said basin and comprising: i. a main cover comprising a perimeter including a lower annular edge surface fastened to said annular flange of said basin, at least a first opening, and a second opening surrounded by a first flat flange; ii. an access cover removably secured to said first flat flange of said main cover; and iii. a gasket disposed between said first flat flange of said main cover and said access cover, and comprising a cord seal disposed in an interface between said main cover and said access cover; iv. an engagement feature comprised of at least one horizontal channel, and a first vertical notch; c. a pump disposed in said basin and operatively connected by a discharge pipe to said first opening of said main cover; and d. a level switch assembly comprising a hook-shaped hanger rod engaged with said engagement feature of said cover assembly, and at least one level switch attached to said hook-shaped hanger rod. 6. The sewage handling system as recited in claim 5, wherein said at least one level switch is a float switch. 7. The sewage handling system as recited in claim 5, wherein said hanger rod is L-shaped. 8. The sewage handling system as recited in claim 5, further comprising a second level switch attached to said hook-shaped hanger rod. 9. A cover assembly for covering a vessel, said cover assembly comprising: a. a main cover comprising a perimeter including a lower annular edge surface fastenable to an annular flange of a basin, at least a first opening connectable to a pipe, and a second opening surrounded by a first flat flange, said first flat flange surrounded by said lower annular edge surface of said perimeter; b. an access cover comprising a second flat flange removably secured to said first flat flange of said main cover; and c. a gasket disposed between said first flat flange of said main cover and said second flat flange of said access cover, and comprising a first portion of a cord seal disposed in an interface between said main cover and said access cover and a hinged finger disposable in a passageway formed in said cord seal. 10. A cover assembly for covering a vessel, said cover assembly comprising: a. a main cover comprising a perimeter including a lower annular edge surface fastenable to an annular flange of a basin, at least a first opening connectable to a pipe, and a second opening surrounded by a first flat flange; b. an access cover removably secured to said first flat flange of said main cover; and c. a gasket disposed between said first flat flange of said main cover and said access cover, and comprising a cord seal disposed in an interface between said main cover and said access cover and a hinged finger disposable in a passageway formed in said cord seal. 11. The cover assembly of claim 10, further including an engagement feature comprised of at least one horizontal channel, and a first vertical notch. 12. The cover assembly of claim 11, further including a level switch assembly comprising a hook-shaped hanger rod engaged with said engagement feature of said cover assembly, and at least one level switch attached to said hook-shaped hanger rod. 13. The cover assembly of claim 12, wherein said at least one level switch is a float switch. 14. The cover assembly of claim 12, wherein said hanger rod is L-shaped.