US3924876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for installing a heavy mobile machine in a working position
Assignee: Fives Cail Babcock SA
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Filing: 1973-11-15
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Granted: 1975-12-09
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Expires: 1993-11-15
Abstract
Abstract A mobile crusher unit or like machine is selectively supported on wheels with pneumatic tires for displacement to a working site and on retractable support feet at the working site. The support feet are placed slightly above ground at the working site, locked in this position, and the pneumatic tires are then deflated until the support feet are in contact with the ground and at least a portion of the machine weight has been transferred to the support feet. The machine comprises a pneumatic circuit connected to all the pneumatic tires for simultaneously inflating and deflating them. Inflation of the tires enables the machine to be displaced to the working site and keeps the feet in their lowered position off the ground while deflation of the tires permits the locked feet in the lowered position to support the machine in the working position.
Inventors
- 👤 Christian Vaillant
- 👤 Jean Pierre Menissez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:16
CPC Classifications
B; B02; B02C; B02C21/00; B02C21/02
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
152 words
In a mobile crusher unit or like machine which comprises a chassis, wheels with pneumatic tires supporting the chassis on the ground for displacement of the chassis to a working site, and retractable support feet supporting the chassis on the ground at the working site in a working position: 1. meAns for mechanically locking the feet in a lowered or working position, and 2. a pneumatic circuit including a source of pneumatic fluid connected to all pneumatic tires for simultaneously inflating or deflating all the tires, a. inflation of the tires by the pneumatic circuit enabling the chassis to be fully supported for displacement the working site and keeping the feet in their lowered position off the ground, and b. deflation of the tires by the pneumatic circuit permitting the locked feet in the lowered position to contact the ground whereby the chassis is supported on the feet in the working position.
Claim 2
Dependent Claim
152 words
In a mobile crusher unit or like machine which comprises a chassis, wheels with pneumatic tires supporting the chassis on the ground for displacement of the chassis to a working site, and retractable support feet supporting the chassis on the ground at the working site in a working position: 1. meAns for mechanically locking the feet in a lowered or working position, and 2. a pneumatic circuit including a source of pneumatic fluid connected to all pneumatic tires for simultaneously inflating or deflating all the tires, a. inflation of the tires by the pneumatic circuit enabling the chassis to be fully supported for displacement the working site and keeping the feet in their lowered position off the ground, and b. deflation of the tires by the pneumatic circuit permitting the locked feet in the lowered position to contact the ground whereby the chassis is supported on the feet in the working position.
Claim 3
Dependent Claim
88 words
a pneumatic circuit including a source of pneumatic fluid connected to all pneumatic tires for simultaneously inflating or deflating all the tires, a. inflation of the tires by the pneumatic circuit enabling the chassis to be fully supported for displacement the working site and keeping the feet in their lowered position off the ground, and b. deflation of the tires by the pneumatic circuit permitting the locked feet in the lowered position to contact the ground whereby the chassis is supported on the feet in the working position.
Claim 4
Dependent Claim
88 words
a pneumatic circuit including a source of pneumatic fluid connected to all pneumatic tires for simultaneously inflating or deflating all the tires, a. inflation of the tires by the pneumatic circuit enabling the chassis to be fully supported for displacement the working site and keeping the feet in their lowered position off the ground, and b. deflation of the tires by the pneumatic circuit permitting the locked feet in the lowered position to contact the ground whereby the chassis is supported on the feet in the working position.
Claim 5
Dependent Claim
49 words
In a mobile crusher unit or like machine which comprises a chassis, wheels with pneumatic tires supporting the chassis on the ground for displacement of the chassis to a working site, and retractable support feet supporting the chassis on the ground at the working site in a working position:
Claim 6
Dependent Claim
49 words
In a mobile crusher unit or like machine which comprises a chassis, wheels with pneumatic tires supporting the chassis on the ground for displacement of the chassis to a working site, and retractable support feet supporting the chassis on the ground at the working site in a working position:
Claim 7
Dependent Claim
69 words
means for mechanically locking the feet in a lowered or working position, the locking means including a. abutments affixed to the chassis and arranged for engagement by the arms, engagement of the arms with the abutments locking the feet in their working position, and the arms being pressed against the abutments by the weight of the crusher unit or like machine when the same rests on the feet, and
Claim 8
Dependent Claim
69 words
means for mechanically locking the feet in a lowered or working position, the locking means including a. abutments affixed to the chassis and arranged for engagement by the arms, engagement of the arms with the abutments locking the feet in their working position, and the arms being pressed against the abutments by the weight of the crusher unit or like machine when the same rests on the feet, and
Claim 9
Dependent Claim
177 words
a pneumatic circuit including a. an air compressor and conduits connecting the compressor to each of the pneumatic tires for simultaneously inflating or deflating all tires, b. a distributor actuatable to be opened to the atmosphere, c. first check valves in the conduits to permit only unidirectional flow of the compressed air from the compressor to the tires, d. second check valves in the conduits to permit unidirectional flow of compressed air from the pneumatic tires to the distributor, e. the conduit lines leading to the distributor being arranged between the pneumatic tires and the first check valves and the second check valves being mounted in the said conduit lines, f. inflation of the tires by the pneumatic circuit enabling the chassis to be fully supported for displacements to the working site and keeping the feet in their lowered position off the ground, and g. deflation of the tires by the pneumatic circuit permitting the locked feet in the lowered position to contact the ground whereby the chassis is supported on the feet in the working position.
Claim 10
Dependent Claim
177 words
a pneumatic circuit including a. an air compressor and conduits connecting the compressor to each of the pneumatic tires for simultaneously inflating or deflating all tires, b. a distributor actuatable to be opened to the atmosphere, c. first check valves in the conduits to permit only unidirectional flow of the compressed air from the compressor to the tires, d. second check valves in the conduits to permit unidirectional flow of compressed air from the pneumatic tires to the distributor, e. the conduit lines leading to the distributor being arranged between the pneumatic tires and the first check valves and the second check valves being mounted in the said conduit lines, f. inflation of the tires by the pneumatic circuit enabling the chassis to be fully supported for displacements to the working site and keeping the feet in their lowered position off the ground, and g. deflation of the tires by the pneumatic circuit permitting the locked feet in the lowered position to contact the ground whereby the chassis is supported on the feet in the working position.
Claim 11
Dependent Claim
22 words
a pneumatic circuit including a source of pneumatic fluid connected to all pneumatic tires for simultaneously inflating or deflating all the tires.
Claim 12
Dependent Claim
22 words
a pneumatic circuit including a source of pneumatic fluid connected to all pneumatic tires for simultaneously inflating or deflating all the tires.
Claim 13
Dependent Claim
28 words
In the mobile crusher unit or like machine of claim 2, hydraulic jacks connected to the arms for pivoting the same between a retracted and the working position.
Claim 14
Dependent Claim
49 words
In a mobile crusher unit or like machine which comprises a chassis, wheels with pneumatic tires supporting the chassis on the ground for displacement of the chassis to a working site, and retractable support feet supporting the chassis on the ground at the working site in a working position:
Claim 15
Dependent Claim
49 words
In a mobile crusher unit or like machine which comprises a chassis, wheels with pneumatic tires supporting the chassis on the ground for displacement of the chassis to a working site, and retractable support feet supporting the chassis on the ground at the working site in a working position:
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) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |