US3621979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic conveyor system
Assignee: Individual
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Filing: 1968-12-05
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Granted: 1971-11-23
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Expires: 1988-12-05
Abstract
Abstract This disclosure pertains to a conveyor system which is primarily designed for use in volume feeding operations where the trays and soiled dishes are returned to the dish room by means of a conveyor, such as schools, hospitals, in-plant feeding and military installations, and in which a magnetic couple is provided between a conveyor and the material to be moved by the conveyor. One element of the magnetic couple is carried by the conveyor and the second element of the couple is mounted on a receptacle in which the material is placed.
Inventors
- 👤 Robert W Kraeft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:14
CPC Classifications
B; B65; B65G; B65G21/00; B65G21/20; B65G21/2009; B65G21/2018; B65G2201/00; B65G2201/02; B65G2201/0235; B65G2201/0258
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
In a conveying system a. a conveyor, b. an element of a magnetic couple affixed to and moving with the conveyor, c. a receptacle for articles to be transported by the conveyor, d. a second magnetic element complementary to the first element affixed to the receptacle, e. the force of the magnetic attraction between the elements acting to hold the receptacle to the conveyor and entrain the receptacle to move with the conveyor, said receptacle being made of a moldable nonmagnetic material and the second element being molded into said receptacle so that the second element is completely covered by the moldable nonmagnetic material.
Claim 2
Dependent Claim
104 words
In a conveying system a. a conveyor, b. an element of a magnetic couple affixed to and moving with the conveyor, c. a receptacle for articles to be transported by the conveyor, d. a second magnetic element complementary to the first element affixed to the receptacle, e. the force of the magnetic attraction between the elements acting to hold the receptacle to the conveyor and entrain the receptacle to move with the conveyor, said receptacle being made of a moldable nonmagnetic material and the second element being molded into said receptacle so that the second element is completely covered by the moldable nonmagnetic material.
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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |