US3851530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Volumetric measuring system
Assignee: ABB Automation Inc
•
Filing: 1973-02-09
•
Granted: 1974-12-03
•
Expires: 1993-02-09
Abstract
Abstract A sealed tube system solidly filled with liquid. One end of the system is elastically deformable by pressure, which deformation is transmitted by the liquid to the other end, which elastically deforms likewise. A thimble and socket connection provides for disconnecting and reconnecting the two ends of the system. The thimble is externally threaded and connected to a rigid base by capillary tubing. An internally and externally threaded sleeve, screwed on to the thimble and fixed to the base, encloses the thimble and tubing.
Inventors
- 👤 J Symonds
- 👤 H Jaquith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:44
CPC Classifications
G; G01; G01L; G01L19/00; G01L19/0007; G01L19/0046; G01L7/00; G01L7/02; G01L7/08; G01L7/086
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
199 words
In a volumetric measuring system having a sealed envelope solidly filled with substantially incompressible liquid, wherein said envelope includes a sensing portion responsive to a condition for causing the internal pressure of said liquid to correspond to said condition, wherein said envelope includes a signal portion responsive to said internal pressure for producing a signal corresponding to said internal pressure, wherein said envelope includes a capillary portion for transmitting internal pressure changes between said sensing and signal portions; wherein said capillary portion has a thimble and a socket each forming a part of said capillary portion, and there being a base, said thimble having means connecting it to said base; the improvement wherein there is a rigid member rigidly fixed to said thimble and, independently of said means, also to said base, and said socket and said thimble being forcibly interengaged for urging said thimble and socket into contact with each other with such force as to strain the material thereof continuously throughout a given area of mutual contact, said thimble and socket each having a capillary passage having openings within said area and registering with one another for defining the thimble and socket parts of said capillary portion.
Claim 2
Dependent Claim
199 words
In a volumetric measuring system having a sealed envelope solidly filled with substantially incompressible liquid, wherein said envelope includes a sensing portion responsive to a condition for causing the internal pressure of said liquid to correspond to said condition, wherein said envelope includes a signal portion responsive to said internal pressure for producing a signal corresponding to said internal pressure, wherein said envelope includes a capillary portion for transmitting internal pressure changes between said sensing and signal portions; wherein said capillary portion has a thimble and a socket each forming a part of said capillary portion, and there being a base, said thimble having means connecting it to said base; the improvement wherein there is a rigid member rigidly fixed to said thimble and, independently of said means, also to said base, and said socket and said thimble being forcibly interengaged for urging said thimble and socket into contact with each other with such force as to strain the material thereof continuously throughout a given area of mutual contact, said thimble and socket each having a capillary passage having openings within said area and registering with one another for defining the thimble and socket parts of said capillary portion.
Claim 3
Dependent Claim
14 words
The invention of claim 1, wherein said base is part of said signal portion.
Claim 4
Dependent Claim
16 words
The invention of claim 1, wherein means including threads interengage said thimble and said rigid member.
Claim 5
Dependent Claim
36 words
The invention of claim 1, wherein means including threads on said thimble and on said rigid member forcibly interengage said thimble and the said rigid member, the said rigid member being a sleeve enveloping said thimble.
Claim 6
Dependent Claim
40 words
The invention of claim 1, including a capillary passage element having one end fixed to said base, and its other end to said thimble, and providing an extension of said capillary passage of said thimble, said means including said element.
Claim 7
Dependent Claim
56 words
The invention of claim 1, wherein said rigid member is a sleeve having internal threads and external threads, said thimble being within said sleeve and having external threads interengaged with said internal threads of said sleeve, said thimble being connected to said base by a capillary passage element within said sleeve, said means including said element.
Claim 8
Dependent Claim
15 words
The invention of claim 6 wherein said base is a part of said signal portion.
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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |