Patent US3745663A successfully refreshed from Google Patents.
US3745663A
Expired / Lapsed
US
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Measuring device
Assignee: Crawford Fitting Co
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Filing: 1971-06-16
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Granted: 1973-07-17
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Expires: 1991-06-16
Abstract
Abstract A measuring device comprising a conventional, metal measuring tape including a hook member adapted to be connected to the outer free end of the tape and having an arcuate shape corresponding with the shape of a cylindrical member which is to be measured. The hook member is located so that its center of curvature is aligned with the zero point of the tape. An arm assembly is carried on the tape housing for pivotal movement about the longitudinal axis of the tape. A surface of the arm is arranged to extend exactly perpendicular to the tape axis to serve as a measuring datum.
Inventors
- 👤 H Dodge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:03
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/10; G01B3/1071; G01B5/00; G01B5/02; G01B2003/1074; G01B2003/1076
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
124 words
In combination: an elongated measuring tape including a housing into which the tape can be retracted; a hook member connected to the outer free end of the tape and having an arcuate portion arranged so that its center of curvature is aligned with the zero point of the tape and coincides with the axis of a tube adapted to be disposed within said arcuate portion when measuring; and, an arm assembly mounted on the tape housing to extend generally perpendicular to the longitudinal axis of the tape, support means connected to said housing and carrying said arm for permitting pivotal movement of said arm about the axis of the tape so that a surface on said arm can be used as a datum point.
Claim 2
Dependent Claim
124 words
In combination: an elongated measuring tape including a housing into which the tape can be retracted; a hook member connected to the outer free end of the tape and having an arcuate portion arranged so that its center of curvature is aligned with the zero point of the tape and coincides with the axis of a tube adapted to be disposed within said arcuate portion when measuring; and, an arm assembly mounted on the tape housing to extend generally perpendicular to the longitudinal axis of the tape, support means connected to said housing and carrying said arm for permitting pivotal movement of said arm about the axis of the tape so that a surface on said arm can be used as a datum point.
Claim 3
Dependent Claim
27 words
The combination of claim 1 wherein the hook member is removably connected to the tape by at least one pin which extends laterally from the hook member.
Claim 4
Dependent Claim
22 words
The combination of claim 2 including a sleeve member to hold tape and hook member together encircling the tape and the hook.
Claim 5
Dependent Claim
17 words
The combination of claim 4 wherein said support means includes a shaft extending parallel to said tape.
References Cited (Backward Citations)
US3095651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |