US3673696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attitude indicator
Assignee: Individual
•
Filing: 1971-02-22
•
Granted: 1972-07-04
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Expires: 1991-02-22
Abstract
Abstract An attitude indicator, or detector, having a circular, annular transparent tube containing a liquid, preferably colored, and a gas bubble, the tube being shaped and constructed for encircling and for fastening non-rotatably upon the forearm and perpendicularly to the length of the forearm of a diver. The position of the bubble in the tube, responsive to the forces of gravity, enables the diver to determine at any moment the attitude, or angular position, of the tube with reference to the planes or lines of gravitational forces, the attitude of his forearm and body, and by visual comparison with the tube the attitude of visible nearby structures and surfaces, and, as well, the attitude of his existing or any contemplated line of travel. Illumination of the tube and its contents, preferably constantly, is provided by means of a light emitter such as radium or other light emitting substance, whereby the bubble may be viewed conveniently and frequently and its location comprehended instantaneously by the diver, whether he be in open waters or in dark areas or in murky waters.
Inventors
- 👤 Gene B Wasson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:30
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/18; G01C9/24; G01C9/26; G01C9/32
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
49 words
An attitude indicator comprising a circular annular tube containing a liquid and a bubble, means for supporting and securing said tube in a position encircling the forearm of a diver, and means including a light emitting material positioned adjacent the tube adapted for illuminating the contents of the tube.
Claim 2
Dependent Claim
49 words
An attitude indicator comprising a circular annular tube containing a liquid and a bubble, means for supporting and securing said tube in a position encircling the forearm of a diver, and means including a light emitting material positioned adjacent the tube adapted for illuminating the contents of the tube.
Claim 3
Dependent Claim
88 words
An attitude indicator comprising a circular annular tube containing a liquid and a bubble, a circular annular frame proportioned for encircling the forearm of a diver and having confining surfaces adapted for supporting the tube with substantial peripheral surfaces transverse of the length of the tube exposed for viewing radially outside said confining surfaces, means for securing the frame in said encircling position on the forearm of a diver, and means including a light emitting material positioned adjacent the tube adapted for illuminating the contents of the tube.
Claim 4
Dependent Claim
88 words
An attitude indicator comprising a circular annular tube containing a liquid and a bubble, a circular annular frame proportioned for encircling the forearm of a diver and having confining surfaces adapted for supporting the tube with substantial peripheral surfaces transverse of the length of the tube exposed for viewing radially outside said confining surfaces, means for securing the frame in said encircling position on the forearm of a diver, and means including a light emitting material positioned adjacent the tube adapted for illuminating the contents of the tube.
Claim 5
Dependent Claim
30 words
An attitude indicator in accordance with claim 1, in which the light emitting material is positioned on the inner periphery of the tube and emits light radially into the tube.
Claim 6
Dependent Claim
26 words
An attitude indicator in accordance with claim 2, in which the light emitting means is positioned within said confining surfaces and emits light into the tube.
Claim 7
Dependent Claim
53 words
An attitude indicator in accordance with claim 1, in which the opposite lateral sides of the tube lie in parallel planes, and having means for the visual determination from the position of the bubble the angular attitude of said planes with reference to a vertical plane lying in the gravitational lines of force.
Claim 8
Dependent Claim
25 words
An attitude indicator in accordance with claim 1, in which the supporting and securing means secures the tube non-rotatably on the arm of the diver.
Claim 9
Dependent Claim
42 words
An attitude indicator in accordance with claim 1, in which the tube supporting means includes annular members on opposite laTeral sides of the tube having peripheral margins of equal diameters which are substantially less than the outer peripheral diameter of the tube.
Claim 10
Dependent Claim
60 words
An attitude indicator in accordance with claim 1, including circular means adjacent opposite lateral sides of the tube having substantially lesser diameters than the outer peripheral diameter of the tube, to aid in visually determining by reference to the position of the bubble in the tube the angular attitude of the tube with respect to vertical lines of gravitational forces.
Claim 11
Dependent Claim
24 words
An attitude indicator in accordance with claim 2, in which means is provided in the frame for covering and protecting the light emitting material.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |