US3774765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Area drain for a promenade deck or like environment
Assignee: Tremco LLC
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Filing: 1971-09-09
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Granted: 1973-11-27
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Expires: 1991-09-09
Abstract
Abstract As an adjustable drain for promenade decks with a seepagedraining permeable layer, e.g., of gravel, between a waterproofed lower poured concrete structural slab and a finished top poured traffic slab, a bowl body embedded in the lower slab has a wide peripheral top flange affording a large sealing area with the overlying waterproofing layer, receives the lower end of a perforated cylindrical filter collar removably adjustably bolted therein, and supports, through three adjustable threaded rods spaced externally of the filter, a rim for a removable grate at the finish level. From the rim, anchors project obliquely into the top slab and, external of the rods, a transitory top slabforming and gravel-sand retaining sleeve depends from a rim bottom formation.
Inventors
- 👤 J Kane
- 👤 A Buehler
- 👤 E Alix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:51
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/04; E03F5/0401; E03F5/0404; E03F2005/0412; E03F2005/0413
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
291 words
For composite decks comprised of a bottom structural slab, waterproofing on the top of the structural slab, a seepage draining intermediate layer and a finish traffic slab on the intermediate layer, an area drain structure comprising: a body member including a bowl with an upwardly open mouth as a bowl inlet and adapted to be secured in the bottom slab, said body member having a circumferentially continuous external top flange about the bowl mouth, and said top flange adapted to receive a circular margin of the waterproofing thereon in sealing relation and located at least as high as the bowl mouth; a rim member centrally apertured to define a drain inlet above the bowl mouth and adapted for supporting a removable drain inlet grate in vertically spaced alignment above the bowl mouth, said rim member adapted to be embedded in the concrete of and at the finish level of the finish slab; means for anchoring the rim member in the concrete of the finish slab; a filter collar with its lower end supported by the body member coaxial to the bowl mouth providing, from the level of the bowl mouth at least upwardly toward said rim member, a filtering barrier to material of the intermediate layer, said collar having a lower end portion disposed within the said bowl mouth and means removably centering the collar relative to the bowl; a finish-slab-forming, and intermediate-layer-retaining, sleeve externally coaxial of said collar and beneath the said rim member; said rim member having an inside diameter affording a drain inlet opening larger than the outside diameter of the filter collar and supporting said removable grate; and means on at least one of the said members for supporting said sleeve coaxially with respect to said collar.
Claim 2
Dependent Claim
291 words
For composite decks comprised of a bottom structural slab, waterproofing on the top of the structural slab, a seepage draining intermediate layer and a finish traffic slab on the intermediate layer, an area drain structure comprising: a body member including a bowl with an upwardly open mouth as a bowl inlet and adapted to be secured in the bottom slab, said body member having a circumferentially continuous external top flange about the bowl mouth, and said top flange adapted to receive a circular margin of the waterproofing thereon in sealing relation and located at least as high as the bowl mouth; a rim member centrally apertured to define a drain inlet above the bowl mouth and adapted for supporting a removable drain inlet grate in vertically spaced alignment above the bowl mouth, said rim member adapted to be embedded in the concrete of and at the finish level of the finish slab; means for anchoring the rim member in the concrete of the finish slab; a filter collar with its lower end supported by the body member coaxial to the bowl mouth providing, from the level of the bowl mouth at least upwardly toward said rim member, a filtering barrier to material of the intermediate layer, said collar having a lower end portion disposed within the said bowl mouth and means removably centering the collar relative to the bowl; a finish-slab-forming, and intermediate-layer-retaining, sleeve externally coaxial of said collar and beneath the said rim member; said rim member having an inside diameter affording a drain inlet opening larger than the outside diameter of the filter collar and supporting said removable grate; and means on at least one of the said members for supporting said sleeve coaxially with respect to said collar.
Claim 3
Dependent Claim
229 words
For composite decks comprised of a bottom structural slab, waterproofing on the top of the structural slab, a seepage -draining intermediate layer and a finish traffic slab on the intermediate layer, an area drain comprising: a body member providing a bowl with an upwardly open mouth as a bowl inlet, and adapted to be secured in the bottom slab, said body member having a circumferentially continuous external top flange about the bowl mouth, said top flange adapted to receive a circular margin of the waterproofing thereon in sealing relation and located at least as high as the bowl mouth; a rim member centrally apertured to define a drain inlet above the bowl mouth and for supporting a drain inlet grate above the bowl mouth and at the finish level of the finish slab; a plurality of vertical rim support rods with lower and upper ends engaged respectively in an upper portion of said body member external of the bowl mouth and in the lower side of said rim; a filter collar with its lower end secured to the top of the bowl around its inlet providing, from substantially the level of the bowl mouth upwardly toward said rim member, a filtering barrier to material of the intermediate layer; and a finish-slab-forming and intermediate-layer-retaining, coaxial sleeve external of said rods and collar within the external periphery of said rim member.
Claim 4
Dependent Claim
229 words
For composite decks comprised of a bottom structural slab, waterproofing on the top of the structural slab, a seepage -draining intermediate layer and a finish traffic slab on the intermediate layer, an area drain comprising: a body member providing a bowl with an upwardly open mouth as a bowl inlet, and adapted to be secured in the bottom slab, said body member having a circumferentially continuous external top flange about the bowl mouth, said top flange adapted to receive a circular margin of the waterproofing thereon in sealing relation and located at least as high as the bowl mouth; a rim member centrally apertured to define a drain inlet above the bowl mouth and for supporting a drain inlet grate above the bowl mouth and at the finish level of the finish slab; a plurality of vertical rim support rods with lower and upper ends engaged respectively in an upper portion of said body member external of the bowl mouth and in the lower side of said rim; a filter collar with its lower end secured to the top of the bowl around its inlet providing, from substantially the level of the bowl mouth upwardly toward said rim member, a filtering barrier to material of the intermediate layer; and a finish-slab-forming and intermediate-layer-retaining, coaxial sleeve external of said rods and collar within the external periphery of said rim member.
Claim 5
Dependent Claim
33 words
A drain as described in claim 2, with threaded means including said rods and cooperatively engaging at least one of said members for adjusting the height of said rim member above said bowl.
Claim 6
Dependent Claim
43 words
A drain as described in claim 3, wherein said rods are threaded into said body member adjacent the bowl mouth and have top ends received in rim bottom sockets, said means including adjusting nuts threaded on the rods and supporting the rim member.
Claim 7
Dependent Claim
56 words
A drain as described in claim 2, wherein said rim member has an inside diameter larger than the outside diameter of the filter collar and supports a removable grate, and said collar has a lower end portion telescoped into the said bowl mouth, said collar removably secured by bolts therethrough threaded outwardly into the body member.
Claim 8
Dependent Claim
56 words
A drain as described in claim 5, wherein to receive said bolts the body member is provided with upward integral threaded lugs equi-spaced around and at said inlet, and said collar has respective upwardly extending end slots for the respective bolts, to facilitate vertical collar adjustment and service cleaning of said collar through said drain inlet.
Claim 9
Dependent Claim
30 words
A drain as described in claim 2, wherein said rim member is provided with a plurality of anchor elements disposed to project in a retaining relation into said finish slab.
Claim 10
Dependent Claim
14 words
A drain as described in claim 2, wherein said sleeve is a wasting element.
Claim 11
Dependent Claim
22 words
A drain as described in claim 2, wherein said sleeve is a cardboard element interposed between said flange and said Rim member.
Claim 12
Dependent Claim
18 words
A drain as described in claim 2, wherein said sleeve is a perforated water corrodible sheet metal sleeve.
Claim 13
Dependent Claim
27 words
A drain as described in claim 2, wherein the radial annular width of the said top flange is on the order of the radius of the bowl.
Claim 14
Dependent Claim
25 words
A drain as described in claim 2, wherein said sleeve is supported dependently from sleeve-top-edge engaging formations on the bottom side of said rim member.
Claim 15
Dependent Claim
40 words
A drain as described in claim 12, wherein said formations include coaxially arcuate depending flange formations at slightly different radial spacings from the center of the rim member to define in effect a receiving groove for the sleeve top edge.
Claim 16
Dependent Claim
74 words
A drain as described in claim 13, wherein said depending flange formations are comprised of a first plurality of angularly spaced flanges having arcuate radially inward surfaces at one radial spacing from the rim center and a second plurality of angularly spaced formations having arcuate radially outward surfaces at a slightly different second radial spacing from the center, with formations of the first plurality alternating with those of the second plurality in angular position.
Claim 17
Dependent Claim
67 words
A drain as described in claim 14, wherein said sleeve is formed of mild sheet steel of sufficient weight to form and withstand the emplacement of the material to constitute said intermediate layer of said traffic slab, and has a multitude of perforations substantially effectively uniformly distributed circumferentially and vertically in a pattern extending from the bottom end upwardly over a major part of the sleeve length.
Claim 18
Dependent Claim
182 words
A drain as described in claim 2, wherein said rim member has an inside diameter larger than the outside diameter of the filter collar and supports a flush, removable grate; said filter collar has a lower end portion telescoped into the said bowl mouth and a plurality of upward slots, said collar removably secured by bolts through respective said slots and threaded outwardly into upstanding integral lugs on the body member extending above the bowl mouth, whereby the collar is vertically adjustable and removable through the rim to facilitate service cleaning of said collar through said drain inlet; said rim member is provided with a plurality of anchor elements disposed to project in a retaining relation into said finish slab; said sleeve is a sheet metal sleeve with a multitude of perforations substantially uniformly distributed circumferentially and from the bottom edge upward at least over its major length; said rods are threaded into said top flange adjacent the bowl mouth and have top ends received in rim bottom sockets, said means including adjusting nuts on the rods and supporting the rim member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |