Patent US3751971A successfully refreshed from Google Patents.
US3751971A
Expired / Lapsed
US
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Air gaging device
Assignee: P A PATTERSON CO Inc
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Filing: 1971-10-20
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Granted: 1973-08-14
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Expires: 1991-10-20
Abstract
Abstract An air gaging device is provided wherein a regulated flow of air is provided to and through a visual gaging device, which includes a transparent hollow tube supporting a rotormeter tube and providing a pathway for air flow to a workpiece whose dimensions are to be measured.
Inventors
- 👤 J Wilcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:37
CPC Classifications
G; G01; G01B; G01B13/00; G01B13/02; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/22
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
215 words
An air gaging device for connection to a source of air under pressure and to a gaging member which comprises a base, a transparent flow meter tube carried by said base with its lower and inlet end in sealed relation to the base and having an upper delivery end, float means variably positioned in said flow meter tube dependent on the flow in said tube, an outer transparent tube in surrounding relation to said flow meter tube and carried by said base with its lower and discharge end in sealed relation to the base and having an upper inlet end, cap means supported by said tubes and having portions in sealed engagement with the upper ends of said tubes, said cap means having fluid passageways therein connecting the interiors of said tubes for delivery of air from the interior of the flow meter tube to the interior of the outer tube, said cap means having a removable member providing access to said passageways and to the interior of said flow tube for cleaning purposes, a fluid supply connection in said base in communication with the lower end of said flow meter tube, and a fluid delivery connection in said base in communication with the lower end of said outer tube and the air gaging member.
Claim 2
Dependent Claim
215 words
An air gaging device for connection to a source of air under pressure and to a gaging member which comprises a base, a transparent flow meter tube carried by said base with its lower and inlet end in sealed relation to the base and having an upper delivery end, float means variably positioned in said flow meter tube dependent on the flow in said tube, an outer transparent tube in surrounding relation to said flow meter tube and carried by said base with its lower and discharge end in sealed relation to the base and having an upper inlet end, cap means supported by said tubes and having portions in sealed engagement with the upper ends of said tubes, said cap means having fluid passageways therein connecting the interiors of said tubes for delivery of air from the interior of the flow meter tube to the interior of the outer tube, said cap means having a removable member providing access to said passageways and to the interior of said flow tube for cleaning purposes, a fluid supply connection in said base in communication with the lower end of said flow meter tube, and a fluid delivery connection in said base in communication with the lower end of said outer tube and the air gaging member.
Claim 3
Dependent Claim
44 words
An air gaging device as defined in claim 1 in which scale members are provided between the exterior of the flow meter tube and the interior of said outer tube, and said scale members are carried at their upper ends in said cap means.
Claim 4
Dependent Claim
27 words
An air gaging device as defined in claim 2 in whcih adjustable indicator means are provided exteRiorly of said outer tube for positioning along said scale members.
Claim 5
Dependent Claim
23 words
An air gaging device as defined in claim 1 in which said base has a valve therein for bypassing said flow meter tube.
Claim 6
Dependent Claim
31 words
An air gaging device as defined in claim 1 in which said cap means also includes a valve body carried thereby, and said valve body has said member removably mounted therein.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |