US3286878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled folding bladder
Assignee: Individual
•
Filing: 1963-06-06
•
Granted: 1966-11-22
•
Expires: 1983-06-06
Abstract
No abstract record available.
Inventors
- 👤 John R Schadt
- 👤 Frank A Chapin
- 👤 Durwood G Anderson
- 👤 Bruna Anthony J La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:09
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/60; F02K9/605
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A DEVICE FOR CONTROLLING SLOSH IN LIQUID PROPELLANT CAPSULE UNITS, SAID DEVICE COMPRISING A TANK FOR CONTAINING LIQUID PROPELLANT, A COLLAPSIBLE BLADDER CONTAINABLE IN SAID TANK IN COLLAPSED CONDITION WHEN THE CAPSULE IS FULLY CHARGED WITH LIQUID PROPELLANT, A GAS INLET TO SAID BLADDER FOR INFLATING SAID BLADDER AS THE PROPELLANT DIMINISHES IN SAID TANK, AND MEANS FOR EFFECTING CONTROLLED FOLDING AND UNFOLDING OF SAID BLADDER ALONG PREDETERMINED FOLD LINES.
Claim 2
Independent Claim
70 words
A DEVICE FOR CONTROLLING SLOSH IN LIQUID PROPELLANT CAPSULE UNITS, SAID DEVICE COMPRISING A TANK FOR CONTAINING LIQUID PROPELLANT, A COLLAPSIBLE BLADDER CONTAINABLE IN SAID TANK IN COLLAPSED CONDITION WHEN THE CAPSULE IS FULLY CHARGED WITH LIQUID PROPELLANT, A GAS INLET TO SAID BLADDER FOR INFLATING SAID BLADDER AS THE PROPELLANT DIMINISHES IN SAID TANK, AND MEANS FOR EFFECTING CONTROLLED FOLDING AND UNFOLDING OF SAID BLADDER ALONG PREDETERMINED FOLD LINES.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |