US3924518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barometer capsule
Assignee: SPRINGFIELD INSTR Co Inc
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Filing: 1974-02-11
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Granted: 1975-12-09
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Expires: 1994-02-11
Abstract
Abstract A barometer capsule and method of manufacture thereof including the manufacturing method for opposed capsule members, the assembly thereof with each other and with a calibration stud, and the evacuation of air in the space between the capsule members.
Inventors
- 👤 Heinz Eberhard
- 👤 Anton Menzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:26
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/02; G01L7/10; G01L7/102; F; F16; F16J; F16J3/00; F16J3/04; F16J3/047; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49877
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
147 words
A capsule for use in a pressure-responsive instrument comprising a first capsule member having a central motiontransmitting nipple integral therewith and a first marginal flange, a second capsule member having a central stud-receiving hole and a second marginal flange, a combined mounting and calibrating stud including a projection extending into said studreceiving hole, means for attaching said stud to said second capsule member and for establishing a vacuum-tight interconnection therebetween, said first and second margiNal flanges being constructed and arranged relative to each other to orient said stud substantially perpendicular to and axially aligned with said motion-transmitting nipple, said marginal flanges further being constructed and arranged to define an outwardly upwardly opening annular trough which is adapted to receive a sealant for providing a circumferential vacuum-tight connection between said first and second capsule members and a low viscosity adhesive sealant in said trough providing said vacuum-tight connection.
Claim 2
Dependent Claim
147 words
A capsule for use in a pressure-responsive instrument comprising a first capsule member having a central motiontransmitting nipple integral therewith and a first marginal flange, a second capsule member having a central stud-receiving hole and a second marginal flange, a combined mounting and calibrating stud including a projection extending into said studreceiving hole, means for attaching said stud to said second capsule member and for establishing a vacuum-tight interconnection therebetween, said first and second margiNal flanges being constructed and arranged relative to each other to orient said stud substantially perpendicular to and axially aligned with said motion-transmitting nipple, said marginal flanges further being constructed and arranged to define an outwardly upwardly opening annular trough which is adapted to receive a sealant for providing a circumferential vacuum-tight connection between said first and second capsule members and a low viscosity adhesive sealant in said trough providing said vacuum-tight connection.
Claim 3
Dependent Claim
14 words
The invention according to claim 1 wherein said low viscosity adhesive is an epoxy.
Claim 4
Dependent Claim
21 words
The invention according to claim 1 wherein said mounting and calibrating stud includes a stud flange partially covering said stud-receiving hole.
Claim 5
Dependent Claim
28 words
The invention according to claim 1 wherein said calibration stud defines a vacuum passageway constructed and arranged for evacuating the space between said first and second capsule members.
Claim 6
Dependent Claim
19 words
The invention according to claim 4 wherein said vacuum passageway is a centrally disposed bore through said calibration stud.
Claim 7
Dependent Claim
47 words
The invention according to claim 4 wherein said vacuum passageway includes a first bore portion and a second bore portion, said second bore portion having a smaller inner diameter than the inner diameter of said first bore portion and a solder seal in said second bore portion.
Claim 8
Dependent Claim
188 words
A capsule for use in a pressure-responsive instrument comprising a first capsule member having a motion-transmitting nipple and a first marginal flange, a second capsule member having a stud-receiving hole and a second marginal flange, a combination mounting and calibrating stud extending into said stud-receiving hole, means for attaching said stud to said second capsule member to establish a vacuum-tight interconnection therebetween, said first and second marginal flanges being constructed and arranged relative to each other to orient said stud substantially parallel to and axially aligned with said motion-transmitting nipple, said marginal flanges further being constructed and arranged to define a substantially upwardly and outwardly opening annular trough which is adapted to receive a sealant for providing a circumferential vacuum-tight connection between said first and second capsule members, a low viscosity adhesive sealant in said trough providing said vacuum-tight connection for said capsule, means defining a vacuum passageway in said stud including a first bore portion and a second bore portion, said second bore portion having a smaller inner diameter than the inner diameter of said first bore portion and a solder seal in said second bore portion.
Claim 9
Dependent Claim
188 words
A capsule for use in a pressure-responsive instrument comprising a first capsule member having a motion-transmitting nipple and a first marginal flange, a second capsule member having a stud-receiving hole and a second marginal flange, a combination mounting and calibrating stud extending into said stud-receiving hole, means for attaching said stud to said second capsule member to establish a vacuum-tight interconnection therebetween, said first and second marginal flanges being constructed and arranged relative to each other to orient said stud substantially parallel to and axially aligned with said motion-transmitting nipple, said marginal flanges further being constructed and arranged to define a substantially upwardly and outwardly opening annular trough which is adapted to receive a sealant for providing a circumferential vacuum-tight connection between said first and second capsule members, a low viscosity adhesive sealant in said trough providing said vacuum-tight connection for said capsule, means defining a vacuum passageway in said stud including a first bore portion and a second bore portion, said second bore portion having a smaller inner diameter than the inner diameter of said first bore portion and a solder seal in said second bore portion.
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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) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |