Patent US3708900A successfully refreshed from Google Patents.
US3708900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerial sign
Assignee: Individual
•
Filing: 1971-04-06
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Granted: 1973-01-09
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Expires: 1991-04-06
Abstract
Abstract A sign for use with aircraft. The sign comprises an upper portion and a lower portion. The upper portion is mounted on the side of the aircraft and is disposed generally above the landing gear. The lower portion is pivotally supported beneath the aircraft on the opposite side of the landing gear and in close proximity to the upper portion. The lower portion can be raised to a horizontal position where it is positioned in a generally horizontal plane between the landing gear so that the aircraft can land. When the lower portion is in its display position, the fact that the two portions are not in the same vertical plane is not discernible to the ordinary observer. Thus, a continuous figure can be displayed on the upper and lower portions without any horizontal gaps in it.
Inventors
- 👤 J Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:37
CPC Classifications
G; G09; G09F; G09F21/00; G09F21/06; G09F21/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
145 words
A helicopter having oppositely positioned landing gear members and a sign, said sign including upper and lower portions, said upper portion including a lower elongated edge, means for supporting said upper portion on one side of said helicopter so that said lower elongated edge is disposed above said landing gear, said lower portion including an upper elongated edge, means for pivotally supporting said lower portion beneath said helicopter with said upper and lower elongated edges in substantially side by side relation with respect to each other and with one of said oppositely positioned landing gear members disposed therebetween, said lower portion being movable between a first substantially vertical display position where it depends from said helicopter and a second substantially horizontal position where it is disposed between said oppositely positioned landing gear, and means for moving said lower portion between said first and second positions.
Claim 2
Dependent Claim
145 words
A helicopter having oppositely positioned landing gear members and a sign, said sign including upper and lower portions, said upper portion including a lower elongated edge, means for supporting said upper portion on one side of said helicopter so that said lower elongated edge is disposed above said landing gear, said lower portion including an upper elongated edge, means for pivotally supporting said lower portion beneath said helicopter with said upper and lower elongated edges in substantially side by side relation with respect to each other and with one of said oppositely positioned landing gear members disposed therebetween, said lower portion being movable between a first substantially vertical display position where it depends from said helicopter and a second substantially horizontal position where it is disposed between said oppositely positioned landing gear, and means for moving said lower portion between said first and second positions.
Claim 3
Dependent Claim
31 words
A helicopter as defined in claim 1 wherein said means for pivotally supporting said lower portion includes brace means supported by said upper portion and extending between said landing gear members.
Claim 4
Dependent Claim
54 words
A helicopter as defined in claim 1 wherein said means for moving said lower portion to said second position comprises resiliently biased members, said members being supported outboard of said pivotal support, and elongated means connected between said lower portion and said resiliently biased means for urging said lower portion to said second position.
Claim 5
Dependent Claim
82 words
A helicopter as defined in claim 1 including means for retaining said lower portion in said first position, said retaining means including over-the-center locking means comprised of a first elongated bar having one end pivotally mounted to said helicopter and a second elongated bar having one end pivotally mounted to said lower portion, the free ends of said first and second bars being pivotally interconnected, and yieldable means interconnected between said bars for yieldably retaining said locking means in its over-the-center position.
Claim 6
Dependent Claim
76 words
helicopter as defined in claim 4 wherein one of said bars is provided with a laterally projecting member adjacent said pivotal interconnection, said means for moving said lower portion comprising cable means having one end coupled to said lower portion adjacent said second bar, its other end connected to reel means, and its intermediate portion being entrained over said laterally projecting member to break said lock when said lower portion is moved to its second position.
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |