US3760245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic conveyer system
Assignee: Individual
•
Filing: 1971-11-12
•
Granted: 1973-09-18
•
Expires: 1991-11-12
Abstract
Abstract A magnetic conveyer system includes a pump passing a magnetic fluid through a pipe path along which a carriage magnetically coupled to the moving fluid is conveyed by the fluid. The speed is varied along the path by changes of fluid cross section in the pipe. A drape traverse arrangement has a plurality of hooks moved to open or close the drapes as the direction of fluid flow is reversed.
Inventors
- 👤 H Halvorsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:47
CPC Classifications
H; H02; H02K; H02K49/00; B; B65; B65G; B65G54/00; B65G54/02; B65G54/025
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
57 words
A conveyance system comprising in combination a magnetic fluid, piping means for said liquid defining a longitudinal path, means passing said fluid through said piping means, and movable carriage means magnetically coupled to said fluid to thereby move along said path at a speed determined by the rate of flow of said liquid through the piping system.
Claim 2
Dependent Claim
57 words
A conveyance system comprising in combination a magnetic fluid, piping means for said liquid defining a longitudinal path, means passing said fluid through said piping means, and movable carriage means magnetically coupled to said fluid to thereby move along said path at a speed determined by the rate of flow of said liquid through the piping system.
Claim 3
Dependent Claim
66 words
A conveyance system as defined in claim 1 having at least two separate piping means each comprising a pump and closed pipe loop, including a transition path for moving said carriage from magnetic coupling with the fluid in one loop to magnetic coupling with the fluid in the other loop thereby establishing a route from the path of one piping loop to the path of another.
Claim 4
Dependent Claim
14 words
A conveyance system as defined in claim 1 wherein said piping is non magnetic.
Claim 5
Dependent Claim
15 words
A conveyance system as defined in claim 1 wherein said piping is non electrically conductive.
Claim 6
Dependent Claim
19 words
A conveyance system as defined in claim 1 wherein the movable carriage means comprises a permanent magnet coupling member.
Claim 7
Dependent Claim
17 words
A conveyance system as defined in claim 1 wherein the movable carriage comprises an electromagnetic coupling member.
Claim 8
Dependent Claim
25 words
A conveyance system as defined in claim 1 wherein said pumping means is reversible to pass said fluid through said piping means in opposite directions.
Claim 9
Dependent Claim
39 words
A conveyance system as defined in claim 1 wherein said piping means along the length of said pAth has variable cross section areas whereby said fluid flows at different speeds and thereby said carriage means move at different speeds.
Claim 10
Dependent Claim
28 words
A conveyance system as defined in claim 8 wherein said variable cross section areas are formed by a member located within said piping means restricting the flow area.
Claim 11
Dependent Claim
29 words
A conveyance system as defined in claim 8 wherein said piping means comprises a pipe of variable internal cross section area to thereby produce said variable cross section areas.
Claim 12
Dependent Claim
25 words
A conveyance system as defined in claim 8 wherein the variable cross section areas are tapered thereby gradually providing a change of speed of flow.
Claim 13
Dependent Claim
53 words
A conveyance system as defined in claim 11 including at least two carriage means coupled to said path wherein said tapered cross section areas are tapered along at least a portion of the length of said path to produce different movement speeds to said two carriage means when dispersed along the tapered areas.
Claim 14
Dependent Claim
55 words
A conveyance system as defined in claim 8 wherein said carriage means comprises a series of spaced drapery hooks and said path comprises a drapery tranverse rod section, and said pump means passes the fluid selectively through the piping in opposite directions to thereby move said hooks back and forth along said traverse rod section.
Claim 15
Dependent Claim
20 words
A system as defined in claim 1 wherein the magnetic fluid is a mixture of a liquid and ferro-magnetic particles.
Claim 16
Dependent Claim
49 words
A conveyance system as defined in claim 14 wherein said coupling means includes a magnetic field region engaging said particles in said liquid thereby forming a movable plug within the piping system comprising a portion of said fluid of higher viscosity than that generally flowing within the piping means.
Claim 17
Dependent Claim
38 words
A conveyance system as defined in claim 15 having at least two separate spaced carriage means wherein said plug extends beyond the carriage to thereby provide a high viscosity cushion between two adjacent carriages that approach each other.
Claim 18
Dependent Claim
25 words
A conveyance system as defined in claim 1 wherein said carriage means comprises a series of spaced carriages moving along said path without operator controls.
Claim 19
Dependent Claim
15 words
A conveyance system as defined in claim 17 wherein said carriages are passenger carrying cars.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |