US3675353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Advertising sign for revolving drum
Assignee: Individual
•
Filing: 1970-11-23
•
Granted: 1972-07-11
•
Expires: 1990-11-23
Abstract
Abstract A drum rotatable on a generally horizontal axis (for example, a ready-mix concrete drum) is provided with one or more signs pivoted to its periphery and carrying an off-center weight which tends to hold the sign upright so that the legend thereon will be readable in all positions of the drum. Preferably, the weight is a liquid partially filling a tube tangent to the pivotal axis upon which the sign is mounted and so disposed with reference to the sign that the liquid can flow toward the bottom of the sign to hold the sign upright.
Inventors
- 👤 Lee A Miller
- 👤 Richard C Zellmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:32
CPC Classifications
G; G09; G09F; G09F11/00; G09F11/02; G09F11/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
75 words
The combination with a drum rotatable on a generally horizontal axis, of a display sign disposed on a plane which is tangent to said drum, means providing a mounting for said sign upon which said sign is rotatable, the mounting being normal to said sign and at right angles to said axis, said sign including a weight normally located beneath said mounting and adapted by gravity to hold the sign erect as the drum rotates.
Claim 2
Dependent Claim
75 words
The combination with a drum rotatable on a generally horizontal axis, of a display sign disposed on a plane which is tangent to said drum, means providing a mounting for said sign upon which said sign is rotatable, the mounting being normal to said sign and at right angles to said axis, said sign including a weight normally located beneath said mounting and adapted by gravity to hold the sign erect as the drum rotates.
Claim 3
Dependent Claim
56 words
A combination according to claim 1 in which the drum is a ready mix concrete truck drum and the weight comprises a tube in the aforesaid plane starting beneath the level of said sign mounting and the weight being reciprocable in said tube and comprising a liquid confined in the tube and only partially filling it.
Claim 4
Dependent Claim
12 words
A combination according to claim 2 in which the weight is mercury.
References Cited (Backward Citations)
US150364A
Cited
US623827A
Cited
US1625305A
Cited
US924031A
Cited
GB191103942A
Cited
GB247992A
Cited
US1855648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |