US3961647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction pipe having means to support a supply conduit
Assignee: Individual
•
Filing: 1975-01-06
•
Granted: 1976-06-08
•
Expires: 1995-01-06
Abstract
Abstract A suction pipe for a suction operated cleaner, especially a sectioned suction pipe, in which the pipe sections are provided with integral extensions thereon forming an axial channel along the outside of the pipe which is open on one side to receive a supply conduit, such as an electric cable.
Inventors
- 👤 Eric G. Doubleday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:06
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/28; A47L9/2889; A47L9/24; A47L9/248; A47L9/2868; A47L9/32; A47L9/327
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
129 words
In a suction pipe for a suction operated cleaning device, a plurality of pipe sections having means for assembly by end to end telescopic engagement, and means on said pipe sections for supporting an electric cable, the means on each section integral with the section comprising a pair of thin, resilient longitudinal walls extending along substantially the length of said pipe section to form a channel opening outwardly, said walls being inclined toward a radial plane between the walls and having restrictive formations along their outer edges to reduce the space between the walls to less than the space between said walls at their base along said pipe, so that a cable in the channels will be retained by the restrictive formations on the outer edges of said walls.
Claim 2
Dependent Claim
129 words
In a suction pipe for a suction operated cleaning device, a plurality of pipe sections having means for assembly by end to end telescopic engagement, and means on said pipe sections for supporting an electric cable, the means on each section integral with the section comprising a pair of thin, resilient longitudinal walls extending along substantially the length of said pipe section to form a channel opening outwardly, said walls being inclined toward a radial plane between the walls and having restrictive formations along their outer edges to reduce the space between the walls to less than the space between said walls at their base along said pipe, so that a cable in the channels will be retained by the restrictive formations on the outer edges of said walls.
Claim 3
Dependent Claim
28 words
A suction pipe according to claim 1 in which the outer edge of at least one of said walls has a portion extending laterally toward the other wall.
Claim 4
Dependent Claim
26 words
A suction pipe according to claim 1 in which the outer edges of both of said walls have portions each extending laterally toward the other wall.
Claim 5
Dependent Claim
20 words
A suction pipe according to claim 3 in which said outer edges of said walls each contain laterally disposed portions.
Claim 6
Dependent Claim
30 words
A suction pipe according to claim 3 in which the portions are uniformly spaced so as to provide a meandering gap through which the conduit is insertable into said channel.
References Cited (Backward Citations)
CA524909A
Cited
GB190614611A
Cited
US2896009A
Cited
US2819858A
Cited
GB884479A
Cited
US3327049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |