Patent US3773312A successfully refreshed from Google Patents.
US3773312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propeller positioning device
Assignee: Lee Raymond Organization Inc
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Filing: 1972-07-14
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Granted: 1973-11-20
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Expires: 1992-07-14
Abstract
Abstract A propeller positioning device comprises a table mount comprising a base member of substantially cylindrical configuration having an under surface substantially perpendicular to the axis thereof and an upper surface transverse to the axis thereof. A table has a substantially planar upper surface, an under surface and a substantially cylindrical support member coaxially affixed to the under surface thereof and having a substantially planar under surface transverse to the axis thereof. A rotating device rotatably mounts the support member on the base member in a manner whereby the under surface of the support member rests on the upper surface of the base member and the support member is rotatable about an axis of rotation perpendicular to the under surface of the support member and the upper surface of the base member so that the table assumes different inclinations corresponding to the rotation of the support member on the base member. A spindle for accommodating a propeller is affixed to the upper surface of the table and extends perpendicularly therefrom and coaxially with the support member.
Inventors
- 👤 F Victorino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:14
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/02; B23Q3/10; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/50; B23Q1/52
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
230 words
A propeller positioning device, comprising a table mount comprising a base member of substantially frustoconical configuration having an under surface substantially perpendicular to the axis thereof and an upper surface transverse and non-perpendicular to the axis thereof; a table having a substantially planar upper surface, an under surface and a substantially frustoconical support member coaxially affixed to the under surface of the table, the support member having a substantially planar under surface transverse to the axis of the support member; rotating means for rotatably mounting the support member on the base member with the under surface of the support member resting on the upper surface of the base member and the support member being rotatable about an axis of rotation perpendicular to the under surface of the support member and the upper surface of the base member so that the table assumes different inclinations corresponding to the rotation of the support member on the base member; a spindle affixed to the upper surface of the table and extending perpendicularly therefrom and coaxially with the support member, the spindle accommodating a propeller; and propeller accommodating means including a first substantially frustoconical annular member coaxially positioned around the base of the spindle, a tubular member coaxially positioned around the spindle and resting on the first annular member and a second substantially frustoconical annular member coaxially positioned around the top of the spindle.
Claim 2
Dependent Claim
230 words
A propeller positioning device, comprising a table mount comprising a base member of substantially frustoconical configuration having an under surface substantially perpendicular to the axis thereof and an upper surface transverse and non-perpendicular to the axis thereof; a table having a substantially planar upper surface, an under surface and a substantially frustoconical support member coaxially affixed to the under surface of the table, the support member having a substantially planar under surface transverse to the axis of the support member; rotating means for rotatably mounting the support member on the base member with the under surface of the support member resting on the upper surface of the base member and the support member being rotatable about an axis of rotation perpendicular to the under surface of the support member and the upper surface of the base member so that the table assumes different inclinations corresponding to the rotation of the support member on the base member; a spindle affixed to the upper surface of the table and extending perpendicularly therefrom and coaxially with the support member, the spindle accommodating a propeller; and propeller accommodating means including a first substantially frustoconical annular member coaxially positioned around the base of the spindle, a tubular member coaxially positioned around the spindle and resting on the first annular member and a second substantially frustoconical annular member coaxially positioned around the top of the spindle.
Claim 3
Dependent Claim
43 words
A propeller positioning device as claimed in claim 1, wherein the upper surface of the base member is at the same angle with its under surface as the under surface of the support member is with the upper surface of the support member.
Claim 4
Dependent Claim
125 words
A propeller positioning device as claimed in claim 1, wherein the base member has an internally threaded pin bore formed therein and the rotating means comprises a bore formed in the base member and extending from the upper surface thereof coaxial with the axis of Rotation, the pin bore opening into the bore, a substantially cylindrical extension extending from the under surface of the support member coaxially with the axis of rotation and rotatably seated in the bore of the base member, the extension having a circular circumferential groove formed therein, and an externally threaded pin member threadedly coupled in the pin bore of the base member and abutting the extension in the groove formed therein for holding the table in a desired angular position.
Claim 5
Dependent Claim
39 words
A propeller positioning device as claimed in claim 1, further comprising an internally threaded axial bore in the top of the spindle for accommodating a bolt for maintaining a propeller in position on the first and second annular members.
References Cited (Backward Citations)
US372714A
Cited
US1371374A
Cited
US1579582A
Cited
US1791781A
Cited
US2013705A
Cited
FR912307A
Cited
US3056369A
Cited
US3248101A
Cited
US3257108A
Cited
US3576070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |