Patent US3707772A successfully refreshed from Google Patents.
US3707772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inclination indicator
Assignee: Individual
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Filing: 1971-06-30
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Granted: 1973-01-02
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Expires: 1991-06-30
Abstract
Abstract An inclinometer for simultaneously measuring inclination in two perpendicularly related planes having a first ring member rotatably mounted to a base member for rotation about an axis normal to the longitudinal axis of the base and a second ring member, with a pendulum pivotally mounted for movement in the plane thereof, pivotally mounted concentrically of the first ring member for movement about an axis perpendicular to the normal axis.
Inventors
- 👤 A Cotter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:59
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
129 words
An inclination indicator comprising a stock having a longitudinal base adapted to fit the surface whose inclination is desired, a substantially semi-circular recess formed in said stock and symmetrically about an axis normal to the longitudinal axis of said base, said recess having first angular graduations, a first semi-circular ring member mounted concentrically within said recess, means mounting said first ring member for rotation about said normal axis, a second semicircular ring member having second angular graduations thereon, means pivotally mounting said second ring member concentrically within said first ring member to swing freely about an axis perpendicular to said normal axis, a pointer, and means for pivotally supporting said pointer to freely swing within the plane of said second ring member to register with the said second graduations.
Claim 2
Dependent Claim
129 words
An inclination indicator comprising a stock having a longitudinal base adapted to fit the surface whose inclination is desired, a substantially semi-circular recess formed in said stock and symmetrically about an axis normal to the longitudinal axis of said base, said recess having first angular graduations, a first semi-circular ring member mounted concentrically within said recess, means mounting said first ring member for rotation about said normal axis, a second semicircular ring member having second angular graduations thereon, means pivotally mounting said second ring member concentrically within said first ring member to swing freely about an axis perpendicular to said normal axis, a pointer, and means for pivotally supporting said pointer to freely swing within the plane of said second ring member to register with the said second graduations.
Claim 3
Dependent Claim
35 words
The invention according to claim 1 in which said longitudinal base comprises a surface of uniform thickness and of arcuate cross section having parallel side edges lying in a plane perpendicular to said normal axis.
Claim 4
Dependent Claim
112 words
The invention according to claim 2 in which a portion of said base intersecting said normal axis comprises a longitudinal recess of the same thickness as said base, a longitudinal arm of substantially the same length and width as said longitudinal recess and adapted to be received in said longitudinal recess, the bottom surface of said arm having the same configuration as the base of said stock and adapted to align with said base when said arm is longitudinally received in said longitudinal recess, and said means mounting said first ring member comprising means mounting said arm and said first ring member for rotatable movement as a unit about said normal axis.
Claim 5
Dependent Claim
56 words
The invention according to claim 3 in which the means for pivotally connecting said arm to said first ring member comprises a pin rotatably extending through an intervening portion of said stock, one end of said pin being fixed in said first ring member and the other end of said pin being fixed to said arm.
Claim 6
Dependent Claim
20 words
The invention according to claim 3 in which means are provided for locking said arm longitudinally within said longitudinal recess.
Claim 7
Dependent Claim
56 words
The invention according to claim 5 in which the means for locking said arm in said longitudinal recess comprises a hole in tHe upper surface of said arm, a reciprocable pin adapted to mate with said hole when said arm is longitudinally aligned in said longitudinal recess, and means to bias said pin into said hole.
Claim 8
Dependent Claim
34 words
The invention according to claim 2 in which means are provided for securing said arcuate base flush against and in longitudinal alignment with a cylindrical surface, for which a measurement of inclination is desired.
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |