Patent US5280949A successfully refreshed from Google Patents.
Patent US3885698A successfully refreshed from Google Patents.
US3885698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Containers for aerosols, gases and the like
Assignee: Individual
•
Filing: 1973-12-20
•
Granted: 1975-05-27
•
Expires: 1993-12-20
Abstract
Abstract An apparatus is provided for holding fluid material distinguished by being balanced in such a way that when placed on a horizontal surface its position will change depending upon whether the fluid contents exceed or fall below a pre-selected minimum.
Inventors
- 👤 Constantin Erwin Lebel
- 👤 Pierre Ilie Isidore Karmitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:24
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/38; B65D25/00; F; F17; F17C; F17C13/00; F17C13/02; F17C13/021; G; G01; G01F; G01F23/00; G01F23/20; G01F23/205; B65D2203/00; B65D2203/04; B65D2203/045; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0119; F17C2201/03; F17C2201/032; F17C2201/05; F17C2201/058; F17C2270/00; F17C2270/07; F17C2270/0718
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
149 words
A removable bottom member for fluid holding containers comprising a base member having a cavity for receiving and frictionally engaging the base of a fluid holding container and opposite to said cavity a bottom defined by a first portion in the form of one flat horizontal plane and by a second portion diverging from said plane generally along a line offset from the vertical axis of the container including a counterweight positioned thereon, said line forming a balancing pivot line around which the container pivots by gravity when the level of fluid material in the countainer drops below a preselected minimum amount, whereby the container and bottom member rests on said flat horizontal plane when the fluid therein exceeds said preselected minimum amount and rotates by gravity about said pivot line offset from the vertical axis of the container when the fluid therein falls below said preselected minimum amount.
Claim 2
Dependent Claim
149 words
A removable bottom member for fluid holding containers comprising a base member having a cavity for receiving and frictionally engaging the base of a fluid holding container and opposite to said cavity a bottom defined by a first portion in the form of one flat horizontal plane and by a second portion diverging from said plane generally along a line offset from the vertical axis of the container including a counterweight positioned thereon, said line forming a balancing pivot line around which the container pivots by gravity when the level of fluid material in the countainer drops below a preselected minimum amount, whereby the container and bottom member rests on said flat horizontal plane when the fluid therein exceeds said preselected minimum amount and rotates by gravity about said pivot line offset from the vertical axis of the container when the fluid therein falls below said preselected minimum amount.
Claim 3
Dependent Claim
18 words
A removable bottom member as claimed in claim 1 wherein the counterweight is a movable counterweight fixed thereto.
References Cited (Backward Citations)
US453079A
Cited
US480095A
Cited
US1269051A
Cited
US2793788A
Cited
US2784577A
Cited
US3054535A
Cited
US3100054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |