US3293799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic irrigation of pot cultures in plant growth rooms and greenhouses
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1964-02-04
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Granted: 1966-12-27
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Expires: 1984-02-04
Abstract
No abstract record available.
Inventors
- 👤 George F Keller
- 👤 Sor Kamil
- 👤 Harlan M Smith
- 👤 Ment Jack D De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:42
CPC Classifications
A; A01; A01G; A01G27/00; A01G27/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
AN APPARATUS FOR HOLDING A CONTAINER SUITABLE FOR HOLDING SOIL, A CULTURE, AND FLUID AND FOR AUTOMATICALLY SUPPLYING FLUID TO SAID CONTAINER COMPRISING: A BASE PLATE; A PLURALITY OF POSTS EXTENDING UPWARDLY FROM SAID BASE PLATE, INCLUDING AT LEAST ONE ELONGATED POST THAT IS LONGER THAN THE OTHER POST; A SUPPORT PLATE FOR HOLDING SAID CONTAINER, SAID SUPPORT PLATE SLIDABLY MOUNTED TO SAID POSTS TO BE GUIDED IN THE VERTICAL PLANE AS THE SUPPORT PLATE MOVES IN VERTICAL RELATIVE MOVEMENT TO SAID BASE PLATE; SPRING BIAS MEANS ATTACHED TO AT LEAST A MAJORITY OF SAID POSTS AND TO SAID SUPPORT PLATE TO INITIATE UPWARD VETICAL MOVEMENT IN RESPONSE TO A DECREASE IN THE WEIGHT OF A PREDETERMINED AMOUNT OF FLUID TO BE PLACED IN SAID CONTAINER, A VALVE POSITIONED ABOVE SAID SUPPORT PLATE TO PERMIT FLOW OF FLUID INTO SANDI CONTAINER WHEN FLUID IS PASSING THROUGH SAID VALVE, SAID VALVE BEING SUITABLE FOR CONNECTION TO A FLUID SUPPLY CONDUIT, ACTUATING MEANS ADAPTED TO OPEN SAID VALVE IN RESPONSE TO SAID UPWARD VERTICAL MOVEMENT OF SAID SUPPORT PLATE, AND AN ELON6GATED MEMBER SUPPORTING SAID VALVE AND SLIDABLY MOUNTED TO SAID ELONGATED POST TO PERMIT COARSE ADJUSTMENT OF THE DISTANCE BETWEEN SAID VALVE AND SAID BASE PLATE.
Claim 2
Independent Claim
205 words
AN APPARATUS FOR HOLDING A CONTAINER SUITABLE FOR HOLDING SOIL, A CULTURE, AND FLUID AND FOR AUTOMATICALLY SUPPLYING FLUID TO SAID CONTAINER COMPRISING: A BASE PLATE; A PLURALITY OF POSTS EXTENDING UPWARDLY FROM SAID BASE PLATE, INCLUDING AT LEAST ONE ELONGATED POST THAT IS LONGER THAN THE OTHER POST; A SUPPORT PLATE FOR HOLDING SAID CONTAINER, SAID SUPPORT PLATE SLIDABLY MOUNTED TO SAID POSTS TO BE GUIDED IN THE VERTICAL PLANE AS THE SUPPORT PLATE MOVES IN VERTICAL RELATIVE MOVEMENT TO SAID BASE PLATE; SPRING BIAS MEANS ATTACHED TO AT LEAST A MAJORITY OF SAID POSTS AND TO SAID SUPPORT PLATE TO INITIATE UPWARD VETICAL MOVEMENT IN RESPONSE TO A DECREASE IN THE WEIGHT OF A PREDETERMINED AMOUNT OF FLUID TO BE PLACED IN SAID CONTAINER, A VALVE POSITIONED ABOVE SAID SUPPORT PLATE TO PERMIT FLOW OF FLUID INTO SANDI CONTAINER WHEN FLUID IS PASSING THROUGH SAID VALVE, SAID VALVE BEING SUITABLE FOR CONNECTION TO A FLUID SUPPLY CONDUIT, ACTUATING MEANS ADAPTED TO OPEN SAID VALVE IN RESPONSE TO SAID UPWARD VERTICAL MOVEMENT OF SAID SUPPORT PLATE, AND AN ELON6GATED MEMBER SUPPORTING SAID VALVE AND SLIDABLY MOUNTED TO SAID ELONGATED POST TO PERMIT COARSE ADJUSTMENT OF THE DISTANCE BETWEEN SAID VALVE AND SAID BASE PLATE.
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |