US3602335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Platform positioning mechanism
Assignee: Eaton Corp
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Filing: 1969-09-25
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Granted: 1971-08-31
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Expires: 1989-09-25
Abstract
Abstract Through a system of beams and rollers, an upper base is mounted for horizontal movement at or near the ceiling of a room. A vertical mast is fixed at its upper end to the upper base for integral movement therewith. A movable mast is telescoped about the fixed mast and moves vertically thereon. A carriage slides vertically on the movable mast and has an opening for the passage of both masts so that it may be elevated to the upper end of the movable mast when the movable mast is lifted to its uppermost position on the fixed mast. An operator''s platform rotates about the carriage on a circular bearing having an opening through which the two masts extend.
Inventors
- 👤 Stanley J Gustetic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:40
CPC Classifications
B; B66; B66F; B66F11/00; B66F11/04; E; E04; E04G; E04G3/00; E04G3/28
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
160 words
In a combination of the class described, an upper base mounted for horizontal movement relatively to an upper structure, a vertically positioned mast fixed at its upper end to said base so as to become an integral rigid part thereof, a movable mast mounted for vertical movement on said rigid mast, means for imparting vertical movement to said movable mast relatively to said rigid mast, a carriage mounted for vertical movement on said movable mast, means whereby said carriage is moved vertically relatively to said movable mast and together with said movable mast relatively to said rigid mast, said carriage having a vertical opening for the passage of both said masts whereby said carriage may be lifted vertically relatively to both said masts while completely encompassing both said masts, said carriage having a horizontal circular bearing formed outwardly about said vertical opening, and a platform rotatably mounted on said circular bearing and also formed with an opening for said masts.
Claim 2
Dependent Claim
160 words
In a combination of the class described, an upper base mounted for horizontal movement relatively to an upper structure, a vertically positioned mast fixed at its upper end to said base so as to become an integral rigid part thereof, a movable mast mounted for vertical movement on said rigid mast, means for imparting vertical movement to said movable mast relatively to said rigid mast, a carriage mounted for vertical movement on said movable mast, means whereby said carriage is moved vertically relatively to said movable mast and together with said movable mast relatively to said rigid mast, said carriage having a vertical opening for the passage of both said masts whereby said carriage may be lifted vertically relatively to both said masts while completely encompassing both said masts, said carriage having a horizontal circular bearing formed outwardly about said vertical opening, and a platform rotatably mounted on said circular bearing and also formed with an opening for said masts.
Claim 3
Dependent Claim
37 words
In the combination of claim 1 the feature that said means whereby said carriage is moved vertically comprises a rack secured to a vertical surface of said movable mast and a motor driven pinion on said carriage.
Claim 4
Dependent Claim
41 words
In the combination of claim 2, the feature that the motor driving said pinion is a hydraulic motor, a source of hydraulic pressure for said motor on said platform, and means for connecting said source of hydraulic pressure to said motor.
Claim 5
Dependent Claim
94 words
In the combination of claim 4, the feature that said means for connecting said source of hydraulic pressure to said motor is a hose connected at one end thereof to said hydraulic pressure source and at the other end to a conduit fixed on said carriage, said fixed conduit and hydraulic pressure source being so positioned relatively to said hose that said hose forms a substantial U between said fixed conduit and said hydraulic pressure source when said platform is rotated to a point substantially midway of two extreme points relatively to said carriage.
Claim 6
Dependent Claim
58 words
In the combination of claim 1, the feature that the means for imparting vertical movement to said movable mast are power operated, independent power means comprising the means for lifting and lowering said carriage, power means for rotating said platform relatively to said carriage on said bearing, and control means for all saId power means on said platform.
Claim 7
Dependent Claim
67 words
In the combination of claim 1, the feature that said platform has an operator''s stand at one side of the axis of rotation of said platform, and a source of hydraulic pressure on a diametrically opposed side of said platform, said means whereby said carriage is moved vertically comprising a hydraulic motor on said carriage, and means connecting said hydraulic motor to said source of hydraulic pressure.
Claim 8
Dependent Claim
97 words
In the combination of claim 1, the feature that said carriage has a hydraulic motor and said platform has a source of fluid pressure thereon, and a hose connected at one end thereof to said hydraulic pressure source and at the other end to a conduit fixed on said carriage, said fixed conduit and hydraulic pressure source being so positioned relatively to said hose that said hose forms a substantial U between said fixed conduit and said hydraulic pressure when said platform is rotated to a point substantially midway of two extreme points relatively to said carriage.
Claim 9
Dependent Claim
91 words
In a combination of the class described, a mast, a carriage, a horizontal circular bearing on said carriage, a platform mounted on said bearing for rotation relatively to said carriage, said carriage and platform having each an opening within the area outlined by the circumference of said circular bearing, means mounting said carriage for vertical movement on said mast with said mast extending through both said openings so that said carriage and platform may be elevated relatively to said mast, and means for moving said carriage vertically relatively to said mast.
Claim 10
Dependent Claim
91 words
In a combination of the class described, a mast, a carriage, a horizontal circular bearing on said carriage, a platform mounted on said bearing for rotation relatively to said carriage, said carriage and platform having each an opening within the area outlined by the circumference of said circular bearing, means mounting said carriage for vertical movement on said mast with said mast extending through both said openings so that said carriage and platform may be elevated relatively to said mast, and means for moving said carriage vertically relatively to said mast.
Claim 11
Dependent Claim
63 words
In the combination of claim 8, an upper base, a mast mounted at its upper end on said base and extending downwardly from said upper base, and means mounting said first mast for vertical movement relatively to said second mast with said second mast also extending through the said openings so that said carriage and platform may be elevated relatively to both masts.
Claim 12
Dependent Claim
67 words
In the combination of claim 8, the feature that said platform has an operator''s stand at one side of the axis of rotation of said platform and a source of hydraulic pressure on a diametrically opposed side of said platform, said means whereby said carriage is moved vertically comprising a hydraulic motor on said carriage, and means connecting said hydraulic motor to said source of hydraulic pressure.
Claim 13
Dependent Claim
98 words
In the combination of claim 8, the feature that said carriage has a hydraulic motor and said platform has a source of fluid pressure thereon, and a hose connected at one end thereof to said hydraulic pressure source and at the other end to a conduit fixed on said carriage, said fixed conduit and hydraulic pressure source being so positioned relatively to said hose that said hose forms a substantial U between said fixed conduit and said hydraulic pressure source when said platform is rotated to a point substantially midway of two extreme points relatively to said carriage.
Claim 14
Dependent Claim
36 words
In the combination of claim 8, the feature that said means whereby said carriage is moved vertically comprises a rack secured to a vertical surface of said mast and a motor driven pinion on said carriage.
Claim 15
Dependent Claim
19 words
In the combination of claim 12, the feature that said pinion is driven through the intermediary of irreversible gears.
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) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |