US3566826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft drift meter
Assignee: Individual
•
Filing: 1968-10-03
•
Granted: 1971-03-02
•
Expires: 1988-10-03
Abstract
Abstract An aircraft drift meter comprising a centerline mark on the cowling parallel to the longitudinal axis of the aircraft and in line with the center of the pilot''s seat. A plurality of incrementally angular lines marked on the cowling on either side of the centerline radiating from a center point coinciding approximately with the pilot''s eye position in order to facilitate pilot observation while in flight with visual land contact of the actual track of the aircraft by alignment of a radial line on the cowling with a landmark which maintains such alignment.
Inventors
- 👤 Lloyd M Forster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:40
CPC Classifications
B; B64; B64D; B64D43/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
An aircraft drift meter adapted for use in an aircraft cockpit having a cowling and pilot seat, comprising linear means extending along the cowling in alignment with the eye position of a pilot in said seat and with the track of the aircraft flight observable with reference to a landmark along said track, and means for gauging the drift angle of said linear means relative to the centerline of the aircraft, said means including a circular arc segment mounted on the cowling of the aircraft, the center of said arcuate segment coinciding with the eye position of the pilot, said linear means comprising a slide pointer mounted on said arc segment for adjustable positioning normal thereto and said gauging means comprising angular deviation indicia on said arc segment.
Claim 2
Dependent Claim
128 words
An aircraft drift meter adapted for use in an aircraft cockpit having a cowling and pilot seat, comprising linear means extending along the cowling in alignment with the eye position of a pilot in said seat and with the track of the aircraft flight observable with reference to a landmark along said track, and means for gauging the drift angle of said linear means relative to the centerline of the aircraft, said means including a circular arc segment mounted on the cowling of the aircraft, the center of said arcuate segment coinciding with the eye position of the pilot, said linear means comprising a slide pointer mounted on said arc segment for adjustable positioning normal thereto and said gauging means comprising angular deviation indicia on said arc segment.
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |