US3628668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leader pipe attachment
Assignee: Individual
•
Filing: 1970-01-14
•
Granted: 1971-12-21
•
Expires: 1990-01-14
Abstract
Abstract A leader pipe attachment includes a pipe section mounted between the leader pipe and a standpipe. Dirt coming from the leader pipe is caught on a screen in the pipe section and the rain water spills through a port in the pipe section above the screen into an annular chamber surrounding the pipe section, returning thereinto through inlet ports below the screen. A slidable cover surrounds the pipe section and may be moved out of a covering position over the outlet port so that accumulated dirt may be removed through the port.
Inventors
- 👤 Max Huppert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:16
CPC Classifications
F; F16; F16B; F16B7/00; E; E04; E04D; E04D13/00; E04D13/04; E04D13/08; F16B7/10; E04D2013/086
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
166 words
An apparatus associated with a rainwater leader pipe and a standpipe for receiving the rainwater from the leader pipe and discharging it into the standpipe, comprising 1. a pipe section coaxial with the leader pipe and the standpipe, a. the leader pipe leading into one end of the pipe section and the other end of the pipe section leading into the standpipe; 2. a screen mounted in the pipe section between the ends thereof; 3. the pipe section having an outlet port means between the screen and the pipe section end and an inlet port means between the screen and the other pipe section end; 4. an annular chamber surrounding the other pipe section end and in communication with the inlet port means; and 5. a slidable cover sleeve surrounding the pipe section and slidable from an outlet port means covering position wherein the cover sleeve extends into the annular chamber to a second position wherein the cover sleeve is removed from the outlet port means.
Claim 2
Independent Claim
166 words
An apparatus associated with a rainwater leader pipe and a standpipe for receiving the rainwater from the leader pipe and discharging it into the standpipe, comprising 1. a pipe section coaxial with the leader pipe and the standpipe, a. the leader pipe leading into one end of the pipe section and the other end of the pipe section leading into the standpipe; 2. a screen mounted in the pipe section between the ends thereof; 3. the pipe section having an outlet port means between the screen and the pipe section end and an inlet port means between the screen and the other pipe section end; 4. an annular chamber surrounding the other pipe section end and in communication with the inlet port means; and 5. a slidable cover sleeve surrounding the pipe section and slidable from an outlet port means covering position wherein the cover sleeve extends into the annular chamber to a second position wherein the cover sleeve is removed from the outlet port means.
Claim 3
Dependent Claim
11 words
a screen mounted in the pipe section between the ends thereof;
Claim 4
Dependent Claim
11 words
a screen mounted in the pipe section between the ends thereof;
Claim 5
Dependent Claim
15 words
The apparatus of claim 1, wherein the other pipe section end extends into the standpipe.
Claim 6
Dependent Claim
22 words
The apparatus of claim 1, wherein a sleeve surrounds the other pipe section end and defines the annular chamber with said end.
Claim 7
Dependent Claim
30 words
the pipe section having an outlet port means between the screen and the pipe section end and an inlet port means between the screen and the other pipe section end;
Claim 8
Dependent Claim
30 words
the pipe section having an outlet port means between the screen and the pipe section end and an inlet port means between the screen and the other pipe section end;
Claim 9
Dependent Claim
18 words
an annular chamber surrounding the other pipe section end and in communication with the inlet port means; and
Claim 10
Dependent Claim
18 words
an annular chamber surrounding the other pipe section end and in communication with the inlet port means; and
Claim 11
Dependent Claim
14 words
The apparatus of claim 3, wherein the sleeve has an extension surrounding the standpipe.
Claim 12
Dependent Claim
17 words
The apparatus of claim 4, wherein said sleeve extension is of sheet lead and engages the standpipe.
Claim 13
Dependent Claim
41 words
a slidable cover sleeve surrounding the pipe section and slidable from an outlet port means covering position wherein the cover sleeve extends into the annular chamber to a second position wherein the cover sleeve is removed from the outlet port means.
Claim 14
Dependent Claim
41 words
a slidable cover sleeve surrounding the pipe section and slidable from an outlet port means covering position wherein the cover sleeve extends into the annular chamber to a second position wherein the cover sleeve is removed from the outlet port means.
Claim 15
Dependent Claim
14 words
The apparatus of claim 4, wherein said sleeve extension is sealed to the standpipe.
Claim 16
Dependent Claim
29 words
The apparatus of claim 1, wherein the one pipe section end surrounds the leader pipe, the leader pipe and the one pipe section end defining therebetween an overflow opening.
Claim 17
Dependent Claim
24 words
The apparatus of claim 7, further comprising axially extending corrugations on the one pipe section end in the overflow opening for channeling overflow therein.
Claim 18
Dependent Claim
21 words
The apparatus of claim 1, wherein the screen is of concave configuration in the direction of the one pipe section end.
Claim 19
Dependent Claim
26 words
The apparatus of claim 1, further comprising retaining means on the pipe section for holding the slidable cover sleeve in a selected one of said positions.
Claim 20
Dependent Claim
69 words
The apparatus of claim 10, wherein the retaining means includes a resilient bracket means mounted on the pipe section between the outlet port means and the one pipe section end, the bracket means including a hooked end, the cover sleeve having a flanged end engaging the hooked end in the covering position, and the hooked end engaging the other end of the cover sleeve in the second position thereof.
Claim 21
Dependent Claim
28 words
The apparatus of claim 1, further comprising axially extending guide means between the slidable cover sleeve and the pipe section for guiding the sleeve along the pipe section.
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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |