US3693348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Volume compensated housing
Assignee: EXOL Inc A CORP OF DE
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Filing: 1970-10-16
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Granted: 1972-09-26
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Expires: 1990-10-16
Abstract
Abstract This invention relates to a housing containing oil which has means to compensate for variations in the volume of oil in the housing, such means comprising a cartridge having a rigid shell in which a deformable partition is positioned defining a gas chamber and an oil chamber on opposed sides thereof respectively, the gas chamber being charged through a charging fitting rigidly secured to one end of the shell, with the other end of the shell having a relatively large opening in communication with the housing through a perforated disc extending across the opening, the cartridge being totally immersed in the housing.
Inventors
- 👤 Jacques H Mercier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:22
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/26; F15B1/265; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86035; Y10T137/86043
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
122 words
A volume compensated rigid housing for liquid, a rigid cartridge of impermeable material in said housing and positioned to be immersed in the liquid therein, said cartridge having a deformable partition positioned therein defining a gas chamber and a liquid chamber on opposed sides thereoF, said cartridge having aligned ports on opposite ends thereof, one of said ports defining a gas port, a charging fitting secured in said gas port and in communication with said gas chamber to charge the latter, the other port defining a liquid port, said liquid port having a perforated disc extending substantially completely thereacross, said liquid port being directly in communication with the interior of said housing, said housing having means to connect the hydraulic system thereto.
Claim 2
Dependent Claim
122 words
A volume compensated rigid housing for liquid, a rigid cartridge of impermeable material in said housing and positioned to be immersed in the liquid therein, said cartridge having a deformable partition positioned therein defining a gas chamber and a liquid chamber on opposed sides thereoF, said cartridge having aligned ports on opposite ends thereof, one of said ports defining a gas port, a charging fitting secured in said gas port and in communication with said gas chamber to charge the latter, the other port defining a liquid port, said liquid port having a perforated disc extending substantially completely thereacross, said liquid port being directly in communication with the interior of said housing, said housing having means to connect the hydraulic system thereto.
Claim 3
Dependent Claim
194 words
A hydraulic system comprising a rigid housing for liquid, a rigid cartridge of impermeable material in said housing and positioned to be immersed in the liquid therein and, said cartridge having a deformable partition positioned therein defining a gas chamber and a liquid chamber on opposed sides thereof, said cartridge having a charging port in communication with said gas chamber and a liquid port in communication with said liquid chamber and the interior of said housing, means to prevent extrusion of said partition from said liquid port, a hydraulic actuator in said housing having a piston slidably mounted therein and a piston rod operatively connected to said piston and extending from said actuator, said actuator having a pair of control ports on opposite sides of said piston, means on one of said control ports defining an outlet port and the other of said control ports defining a pressure port, means connecting said outlet port to discharge directly into said rigid housing whereby upon extension of said piston rod and discharge of oil from said actuator into said housing, said partition of said cartridge will be deformed to compensate for such additional volume of oil.
Claim 4
Dependent Claim
194 words
A hydraulic system comprising a rigid housing for liquid, a rigid cartridge of impermeable material in said housing and positioned to be immersed in the liquid therein and, said cartridge having a deformable partition positioned therein defining a gas chamber and a liquid chamber on opposed sides thereof, said cartridge having a charging port in communication with said gas chamber and a liquid port in communication with said liquid chamber and the interior of said housing, means to prevent extrusion of said partition from said liquid port, a hydraulic actuator in said housing having a piston slidably mounted therein and a piston rod operatively connected to said piston and extending from said actuator, said actuator having a pair of control ports on opposite sides of said piston, means on one of said control ports defining an outlet port and the other of said control ports defining a pressure port, means connecting said outlet port to discharge directly into said rigid housing whereby upon extension of said piston rod and discharge of oil from said actuator into said housing, said partition of said cartridge will be deformed to compensate for such additional volume of oil.
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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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |