US3666104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated drain apparatus
Assignee: A AND L BATTERY AND ELECTRIC SERVI
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Filing: 1970-12-30
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Granted: 1972-05-30
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Expires: 1990-12-30
Abstract
Abstract Apparatus for use in constructing a drainage system for paved surfaces such as are found in automobile service stations and the like. The apparatus includes sheet metal sections which can be assembled at the site of use to serve as forms for an indefinite length about which concrete can be poured and which then remain as integral parts of a trench drain and sump assembly.
Inventors
- 👤 Theophil Aprill Jr
- 👤 John R Leerkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:59
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/22; E01C11/224; E01C11/227; E03; E03F; E03F5/00; E03F5/04; E03F5/0401; E03F5/0405; E03F2005/0416
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
182 words
A trench drain and sump assembly comprising a sump frame including top and bottom sheet metal sections, said bottom section having an inwardly extending flange around its upper periphery and said top section having an inwardly extending flange around its lower periphery which is seated on and fastened to the flange of the bottom section, a sheet metal strainer removably supported on the fastened flanges, said top section defining shoulders on opposite sides adjacent to its upper periphery, a grating seated on said shoulders and extending over the opening of the top section, and a trench frame including side sheet metal sections secured in spaced-apart relation by transverse frame members connected to the ends of the side sections, said side sections defining shoulders adjacent to their upper edges, and a plurality of aligned gratings seated on the last-named shoulders and extending over the opening between said side sections, said top section of the sump frame including an opening in one side, and one end of one frame section is connected to the top section in registry with said opening in one side.
Claim 2
Dependent Claim
182 words
A trench drain and sump assembly comprising a sump frame including top and bottom sheet metal sections, said bottom section having an inwardly extending flange around its upper periphery and said top section having an inwardly extending flange around its lower periphery which is seated on and fastened to the flange of the bottom section, a sheet metal strainer removably supported on the fastened flanges, said top section defining shoulders on opposite sides adjacent to its upper periphery, a grating seated on said shoulders and extending over the opening of the top section, and a trench frame including side sheet metal sections secured in spaced-apart relation by transverse frame members connected to the ends of the side sections, said side sections defining shoulders adjacent to their upper edges, and a plurality of aligned gratings seated on the last-named shoulders and extending over the opening between said side sections, said top section of the sump frame including an opening in one side, and one end of one frame section is connected to the top section in registry with said opening in one side.
Claim 3
Dependent Claim
37 words
The trench drain and sump assembly that is defined in claim 1, wherein said bottom section has a flange extending laterally from its lower periphery, and said side sections have flanges extending laterally from their lower edges.
Claim 4
Dependent Claim
30 words
The trench drain and sump assembly that is defined in claim 1, wherein anchor brackets are rigidly secured to the outer surfaces of saiD side sections and extend laterally therefrom.
Claim 5
Dependent Claim
41 words
The trench drain and sump assembly that is defined in claim 1, wherein the aligned gratings seated in said trench frame are two in number and when in their aligned positions their combined lengths equal the length of the trench frame.
Claim 6
Dependent Claim
57 words
The trench drain and sump assembly that is defined in claim 4, wherein said aligned gratings include a plurality of bearing bars banded in parallel spaced relation having their ends seated on the shoulders of the side sections and a pair of cross bars welded to each of said bearing bars adjacent to the top surfaces thereof.
Claim 7
Dependent Claim
129 words
In a trench drain and sump assembly, a trench drain that has an open end, a sump frame including top and bottom sheet metal sections, said bottom section having an inwardly extending flange around its upper periphery and said top section having an inwardly extending flange around its lower periphery which is seated on and fastened to the flange of the bottom section, a sheet metal strainer removably supported on the fastened flanges, said top section defining shoulders on opposite sides adjacent to its upper periphery, a grating seated on said shoulders and extending over the opening of the top section, and said top section of the sump frame including in one side thereof above said strainer an opening in registry with the open end of said trench drain.
Claim 8
Dependent Claim
129 words
In a trench drain and sump assembly, a trench drain that has an open end, a sump frame including top and bottom sheet metal sections, said bottom section having an inwardly extending flange around its upper periphery and said top section having an inwardly extending flange around its lower periphery which is seated on and fastened to the flange of the bottom section, a sheet metal strainer removably supported on the fastened flanges, said top section defining shoulders on opposite sides adjacent to its upper periphery, a grating seated on said shoulders and extending over the opening of the top section, and said top section of the sump frame including in one side thereof above said strainer an opening in registry with the open end of said trench drain.
Claim 9
Dependent Claim
43 words
The combination that is defined in claim 6, wherein said sheet metal strainer is a one-piece stamping having peripheral portions supported on the fastened flanges, a central apertured portion, and intermediate inclined portions sloping downwardly from the peripheral portions to the central portion.
References Cited (Backward Citations)
US530816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |