Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
103 words
A layered composite of grease filtering and trapping materials, comprising: an upper, porous layer for trapping particulate debris and being permeable for passage of liquid grease therethrough; a lower layer for absorbing grease passing through said upper layer, said composite having a through aperture for enabling passage of a grease discharge vent therethrough in order to trap the discharged grease within said composite; a barrier layer disposed below said lower layer and impermeable to passage of water or grease therethrough; and a bottom layer below said barrier layer for spacing said upper and lower layers from standing water and promoting air circulation thereunder.
Claim 2
Dependent Claim
103 words
A layered composite of grease filtering and trapping materials, comprising: an upper, porous layer for trapping particulate debris and being permeable for passage of liquid grease therethrough; a lower layer for absorbing grease passing through said upper layer, said composite having a through aperture for enabling passage of a grease discharge vent therethrough in order to trap the discharged grease within said composite; a barrier layer disposed below said lower layer and impermeable to passage of water or grease therethrough; and a bottom layer below said barrier layer for spacing said upper and lower layers from standing water and promoting air circulation thereunder.
Claim 3
Dependent Claim
16 words
A composite according to claim 1, wherein said upper layer has a porosity of approximately 60%.
Claim 4
Dependent Claim
16 words
A composite according to claim 1, wherein said lower layer has a composition comprising fibrous polyolefin.
Claim 5
Dependent Claim
15 words
A composite according to claim 1, wherein said barrier layer has a composition comprising polyurethane.
Claim 6
Dependent Claim
18 words
A composite according to claim 1 wherein said barrier layer comprises fibrous material bonded to an impermeable liner.
Claim 7
Dependent Claim
13 words
A composite according to claim 1, wherein said bottom layer comprises porous polyester.
Claim 8
Dependent Claim
155 words
A layered composite grease-trapping and filtering assembly for use with a frame structure for positioning about a grease discharge vent stack, with said vent stack projecting above said frame structure, and wherein said grease-trapping and filtering assembly surrounds said vent stack, said grease-trapping and filtering assembly having an outer peripheral configuration complementary to said frame structure and including a through aperture for reception of said vent stack, said assembly further including an upper porous layer for trapping particulate debris and being permeable for the passage of liquid, including liquid grease therethrough; and a lower layer for absorbing the grease passing through said upper layer, said lower layer having a hydrophobic composition and both said layers having said through aperture formed therein, wherein said upper layer has a composition comprising foam polyester passage of grease therethrough, and said lower layer has a hydrophobic composition comprising fibrous polyolefin for absorbing the grease passing through said upper layer.
Claim 9
Dependent Claim
155 words
A layered composite grease-trapping and filtering assembly for use with a frame structure for positioning about a grease discharge vent stack, with said vent stack projecting above said frame structure, and wherein said grease-trapping and filtering assembly surrounds said vent stack, said grease-trapping and filtering assembly having an outer peripheral configuration complementary to said frame structure and including a through aperture for reception of said vent stack, said assembly further including an upper porous layer for trapping particulate debris and being permeable for the passage of liquid, including liquid grease therethrough; and a lower layer for absorbing the grease passing through said upper layer, said lower layer having a hydrophobic composition and both said layers having said through aperture formed therein, wherein said upper layer has a composition comprising foam polyester passage of grease therethrough, and said lower layer has a hydrophobic composition comprising fibrous polyolefin for absorbing the grease passing through said upper layer.
Claim 10
Dependent Claim
12 words
An assembly according to claim 7 wherein said fibrous polyolefin comprises polypropylene.