US4067072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic drain assembly
Assignee: DIVERSE CORPORATE TECHNOLOGIES Inc
•
Filing: 1976-07-21
•
Granted: 1978-01-10
•
Expires: 1996-07-21
Abstract
Abstract An interfitting three part plastic drain assembly for use in the floors of shower baths and various types of drains which has a novel interfitting structure enabling it to be used with different sized pipes and to only use two of the parts where no waterproofing membrane is required.
Inventors
- 👤 Lewis B. Izzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:15
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/04; E03F5/0407; E03F5/0409; E03F2005/0412; E03F2005/0413
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
116 words
A drain pipe assembly for the floor of showers, etc. comprising, in combination, an outlet section to be mounted on a system drain pipe; said outlet section having an upper rim section and upper and lower threaded inner faces of larger and smaller diameters respectively; a clamping collar having a peripheral rim section for engaging said outlet upper rim section and exterior threads engageable with said larger threaded inner face; said clamping collar having an inner face with threads axially aligned with said smaller diameter outlet threaded inner face; and a strainer drain plate supporting barrel having an exterior threaded face engageable with said clamping collar inner threads and with said smaller inner threaded outlet face.
Claim 2
Dependent Claim
116 words
A drain pipe assembly for the floor of showers, etc. comprising, in combination, an outlet section to be mounted on a system drain pipe; said outlet section having an upper rim section and upper and lower threaded inner faces of larger and smaller diameters respectively; a clamping collar having a peripheral rim section for engaging said outlet upper rim section and exterior threads engageable with said larger threaded inner face; said clamping collar having an inner face with threads axially aligned with said smaller diameter outlet threaded inner face; and a strainer drain plate supporting barrel having an exterior threaded face engageable with said clamping collar inner threads and with said smaller inner threaded outlet face.
Claim 3
Dependent Claim
22 words
The combination recited by claim 1 wherein said engaging rim sections are beveled to clamp a waterproof membrane therebetween without tearing it.
Claim 4
Dependent Claim
25 words
The combination recited in claim 1 wherein said clamping collar is provided with a plurality of spaced, vertical weep holes to permit condensation drainage therethrough.
Claim 5
Dependent Claim
28 words
The combination reciated in claim 1 wherein the outlet section includes a drain pipe having inner and outer shoulders for mounting on different sizes of system drain pipes.
Claim 6
Dependent Claim
28 words
The combination recited in claim 1 wherein said outlet section includes circumferentially spaced, radially projecting ribs to strengthen the same and to prevent rotary movement thereof when installed.
Claim 7
Dependent Claim
108 words
A drain pipe assembly for the floor of showers, etc. comprising, in combination, an outlet section to be mounted on a system drain pipe; said outlet section having an upper rim section and upper and lower threaded inner faces of larger and smaller diameters respectively; a clamping collar having a peripheral rim section for engaging said outlet upper rim section and exterior threads engageable with said larger threaded inner face; said clamping collar having an inner face with threads axially aligned with said smaller diameter outlet threaded inner face; and a strainer drain plate supporting barrel having an exterior threaded face engageable with said clamping collar inner threads.
Claim 8
Dependent Claim
108 words
A drain pipe assembly for the floor of showers, etc. comprising, in combination, an outlet section to be mounted on a system drain pipe; said outlet section having an upper rim section and upper and lower threaded inner faces of larger and smaller diameters respectively; a clamping collar having a peripheral rim section for engaging said outlet upper rim section and exterior threads engageable with said larger threaded inner face; said clamping collar having an inner face with threads axially aligned with said smaller diameter outlet threaded inner face; and a strainer drain plate supporting barrel having an exterior threaded face engageable with said clamping collar inner threads.
Claim 9
Dependent Claim
109 words
A drain pipe assembly for the floor of showers, etc. comprising, in combination, an outlet section to be mounted on a system drain pipe; said outlet section having an upper rim section and upper and lower threaded inner faces of larger and smaller diameters respectively; a clamping collar having a peripheral rim section for engaging said outlet upper rim section and exterior threads engageable with said larger threaded inner face; said clamping collar having an inner face with threads axially aligned with said smaller diameter outlet threaded inner face; and a strainer drain plate supporting barrel having an exterior threaded face engageable with said smaller inner threaded outlet face.
Claim 10
Dependent Claim
109 words
A drain pipe assembly for the floor of showers, etc. comprising, in combination, an outlet section to be mounted on a system drain pipe; said outlet section having an upper rim section and upper and lower threaded inner faces of larger and smaller diameters respectively; a clamping collar having a peripheral rim section for engaging said outlet upper rim section and exterior threads engageable with said larger threaded inner face; said clamping collar having an inner face with threads axially aligned with said smaller diameter outlet threaded inner face; and a strainer drain plate supporting barrel having an exterior threaded face engageable with said smaller inner threaded outlet face.
References Cited (Backward Citations)
US2311708A
Cited
US2749999A
Cited
US2783852A
Cited
US3071781A
Cited
US3420552A
Cited
US3795924A
Cited
US3742525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |