Patent US3650218A successfully refreshed from Google Patents.
US3650218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conveyor
Assignee: Behring Corp
•
Filing: 1970-03-09
•
Granted: 1972-03-21
•
Expires: 1990-03-09
Abstract
Abstract An air conveyor including air flotation cells spaced serially along a conveying path, a conveying pallet on the cells to be floated by air flowing from the cells, and means for supplying air to the cells to allow movement of the pallet along the conveying path. The pallet spans a plurality of cells, and preferably alternate cells communicate with different air supply ducts to provide alternate flotation systems. In a preferred embodiment, guides for guiding the movement of the pallet are included.
Inventors
- 👤 Wendell E Losey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:45
CPC Classifications
B; B65; B65G; B65G51/00; B65G51/02; B65G51/03
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
75 words
An air conveyor including in combination a. means forming a conveying path, b. air supply ducts leading along said path, c. a plurality of air flotation cells along said path, with alternating ones of said cells communicating with different ones of said ducts to provide alternate flotation systems, and d. pallet means spanning a plurality of the cells in one system and movable from cell to cell along said path upon inflation of said cells.
Claim 2
Dependent Claim
75 words
An air conveyor including in combination a. means forming a conveying path, b. air supply ducts leading along said path, c. a plurality of air flotation cells along said path, with alternating ones of said cells communicating with different ones of said ducts to provide alternate flotation systems, and d. pallet means spanning a plurality of the cells in one system and movable from cell to cell along said path upon inflation of said cells.
Claim 3
Dependent Claim
23 words
The air conveyor as claimed in claim 1 further including guiding means for guiding the movement of said pallet means along said path.
Claim 4
Dependent Claim
20 words
The air conveyor as claimed in claim 2 in which said guiding means comprises a channel receiving said pallet means.
Claim 5
Dependent Claim
32 words
The air conveyor as claimed in claim 3 in which said pallet means has projections extending downward therefrom engageable with opposite sides of said channel to provide guiding of said pallet means.
Claim 6
Dependent Claim
20 words
The air conveyor as claimed in claim 4 in which said projections include rolling means for rolling along said channel.
Claim 7
Dependent Claim
132 words
An air conveyor including in combination, a. means forming a channel, b. a platform supported in said channel above the bottom thereof, c. cell means supported on said platform providing a plurality of air flotation outlets spaced along a conveying path in said channel, d. pallet means movable along said path on an air cushion provided by air issuing from said outlets, e. means for coupling one pallet means to another, f. projections extending downward from said pallet means into said channel and engageable with sides of said channel to guide said pallet means and including a stop portion engageable with said platform to limit upward movement of said pallet means, and g. means to supply air to said cell means including first and second conduits communicating respectively with alternate cell means.
Claim 8
Dependent Claim
132 words
An air conveyor including in combination, a. means forming a channel, b. a platform supported in said channel above the bottom thereof, c. cell means supported on said platform providing a plurality of air flotation outlets spaced along a conveying path in said channel, d. pallet means movable along said path on an air cushion provided by air issuing from said outlets, e. means for coupling one pallet means to another, f. projections extending downward from said pallet means into said channel and engageable with sides of said channel to guide said pallet means and including a stop portion engageable with said platform to limit upward movement of said pallet means, and g. means to supply air to said cell means including first and second conduits communicating respectively with alternate cell means.
References Cited (Backward Citations)
US3081886A
Cited
US3242876A
Cited
US3473910A
Cited
US3498234A
Cited
US3513934A
Cited
US3540378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |