Patent US3712331A successfully refreshed from Google Patents.
US3712331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holding tank evacuating apparatus for a recreational vehicle
Assignee: Individual
•
Filing: 1971-03-03
•
Granted: 1973-01-23
•
Expires: 1991-03-03
Abstract
Abstract Apparatus for evacuating the holding tank of a recreational vehicle including a flexible hose and a carrier rotatably attached to the vehicle and a rigid sleeve for supporting the hose at all times.
Inventors
- 👤 C Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:08
CPC Classifications
E; E03; E03F; E03F1/00; E03F1/008; B; B60; B60P; B60P1/00; B60P1/60; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6918
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
97 words
Apparatus of the class described comprising in combination, a. a vehicle having a holding tank for liquid, b. a carrier rotatably carried by said vehicle, c. a rigid shield including telescoped tubes, d. a flexible, extensible conduit communicating at one end with the interior of said tank and extending through said shield, and e. a fitting connected to said shield and loosely carried by said carrier whereby the latter may be rotated to allow said shield and said conduit to be selectively positioned with respect to said vehicle while said conduit remains in communication with said tank.
Claim 2
Dependent Claim
97 words
Apparatus of the class described comprising in combination, a. a vehicle having a holding tank for liquid, b. a carrier rotatably carried by said vehicle, c. a rigid shield including telescoped tubes, d. a flexible, extensible conduit communicating at one end with the interior of said tank and extending through said shield, and e. a fitting connected to said shield and loosely carried by said carrier whereby the latter may be rotated to allow said shield and said conduit to be selectively positioned with respect to said vehicle while said conduit remains in communication with said tank.
Claim 3
Dependent Claim
34 words
The combination of elements set forth in claim 1 in which the conduit extends in the inner tube of the shield and to a point adjacent to the outer end of the inner tube.
Claim 4
Dependent Claim
28 words
The combination of elements set forth in claim 1 in which the shield is supported and held in position by the carrier when the vehicle is in transit.
Claim 5
Dependent Claim
19 words
The combination of elements set forth in claim 1 in which the conduit is extensible independently of said shield.
Claim 6
Dependent Claim
34 words
The combination of elements set forth in claim 1 in which said carrier is rotatable through approximately 90* to rotate the inlet of said fitting from a substantially horizontal position to substantially vertical position.
Claim 7
Dependent Claim
31 words
The combination of elements set forth in claim 1 in which the carrier is spring loaded and latched in position to hold the inlet of said fitting substantially horizontal during transit.
Claim 8
Dependent Claim
63 words
The combination of elements set forth in claim 6 in which a basin drain is connected to a tank fitting which is connected to the inlet end of said conduit and the portion of said conduit adjacent to the inlet end portion is maintained above the outlet of said tank fitting whereby drain water from said basin is trapped in said tank fitting.
Claim 9
Dependent Claim
54 words
The combination of elements set forth in claim 1 in which the outlet end portion of said conduit is positioned adjacent to a screw threaded fitting that is rotatable with respect to said outlet end, and a movable handle is connected to said fitting to facilitate handling and positioning said fitting and attached conduit.
Claim 10
Dependent Claim
26 words
The combination of elements set forth in claim 8 in which said handle latches with said shield to maintain said conduit in said shield during transit.
Claim 11
Dependent Claim
49 words
The combination of elements set forth in claim 1 in which a water hose is connected to the conduit near its inlet end whereby a supply of water may be introduced into said conduit to flush out the conduit after the contents of the holding tank have been discharged.
Claim 12
Dependent Claim
23 words
The combination of elements set forth in claim 10 in which means is provided for introducing a cleansing agent into the flush water.
Claim 13
Dependent Claim
28 words
The combination of elements set forth in claim 11 in which the cleansing agent is carried in a manually collapsible container in direct communication with said hose connector.
References Cited (Backward Citations)
US2948306A
Cited
US3228421A
Cited
US3275030A
Cited
US3439700A
Cited
US3378025A
Cited
US3451628A
Cited
US3502403A
Cited
US3496959A
Cited
US3610058A
Cited
US3613997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |