Patent US4887287A successfully refreshed from Google Patents.
US4887287A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile x-ray apparatus comprising exchangeable wheels
Assignee: US Philips Corp
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Filing: 1988-11-04
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Granted: 1989-12-12
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Expires: 2008-11-04
Abstract
Abstract For transport on rough terrain as well as on the floor of a hospital, a mobile X-ray diagnostic apparatus has exchangeable wheels which are adapted to the relevant surface. When the apparatus is transported on an uneven and soft surface, wide wheels having a large diameter can be used, while in hospital conditions narrow wheels having a small diameter can be used. In order to render the X-ray diagnostic apparatus suitable for transport on different surfaces in a simple operation, the wheels can be readily exchanged without using tools; a towbar is also provided.
Inventors
- 👤 Johannes I. M. Cobben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:56
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/44; A61B6/4405; A61B6/4429; A61B6/4435; A61B6/4441; A61B6/4423
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
151 words
A mobile x-ray diagnostic apparatus, comprising a C-arc on which an x-ray source and an x-ray detector are mounted opposite one another, and support means for said C-arc having a first set of ground wheels including two side wheels connected to said support means at respective first spaced-apart points for swiveling around vertical axes, characterized in that the x-ray diagnostic apparatus further comprises an exchangeable second set of ground wheels including two side wheels and that said support means further comprises means for detachably securing said exchangeable second set of ground wheels to said support means at respective second spaced apart points, and means for adjusting the height of the two side wheels of said exchangeable second set relative to said respective second points to enable transferring operative support of said apparatus from the side wheels of one of said first and second sets to the wheels of the other set.
Claim 2
Dependent Claim
151 words
A mobile x-ray diagnostic apparatus, comprising a C-arc on which an x-ray source and an x-ray detector are mounted opposite one another, and support means for said C-arc having a first set of ground wheels including two side wheels connected to said support means at respective first spaced-apart points for swiveling around vertical axes, characterized in that the x-ray diagnostic apparatus further comprises an exchangeable second set of ground wheels including two side wheels and that said support means further comprises means for detachably securing said exchangeable second set of ground wheels to said support means at respective second spaced apart points, and means for adjusting the height of the two side wheels of said exchangeable second set relative to said respective second points to enable transferring operative support of said apparatus from the side wheels of one of said first and second sets to the wheels of the other set.
Claim 3
Dependent Claim
85 words
An X-ray apparatus as claimed in claim 1, wherein said first and exchangeable second sets of ground wheels each comprise a front wheel and wherein said apparatus further comprises a tow bar and means for securing said tow bar to a suspension of the exchangeable front wheel of the second set such that said tow bar is capable of exerting an upwards force on a generally horizontal pivot axis of the suspension and enables the X-ray diagnostic apparatus to be towed in a controllable manner.
Claim 4
Dependent Claim
27 words
An X-ray apparatus as claimed in claim 1, characterized in that an exchangeable wheel of said second set comprises a brake means with an adjustable braking force.
Claim 5
Dependent Claim
85 words
An X-ray apparatus as claimed in claim 1, wherein said first and exchangeable second sets of ground wheels each comprise a front wheel and wherein said apparatus further comprises a tow bar and means for securing said tow bar to a suspension of the exchangeable front wheel of the second set such that said tow bar is capable of exerting an upwards force on a generally horizontal pivot axis of the suspension and enables the X-ray diagnostic apparatus to be towed in a controllable manner.
Claim 6
Dependent Claim
27 words
An X-ray apparatus as claimed in claim 4, characterized in that an exchangeable wheel of said second set comprises a brake means with an adjustable braking force.
Claim 7
Dependent Claim
27 words
An X-ray apparatus as claimed in claim 1, characterized in that an exchangeable wheel of said second set comprises a brake means with an adjustable braking force.
Claim 8
Dependent Claim
30 words
An X-ray diagnostic apparatus as claimed in claim 1 wherein said respective second spaced-apart points comprise alternative differently spaced-apart points for the exchangeable two side wheels of said second set.
Claim 9
Dependent Claim
30 words
An X-ray diagnostic apparatus as claimed in claim 2 wherein said respective second spaced-apart points comprise alternative differently spaced-apart points for the exchangeable two side wheels of said second set.
Claim 10
Dependent Claim
30 words
An X-ray diagnostic apparatus as claimed in claim 3 wherein said respective second spaced-apart points comprise alternative differently spaced-apart points for the exchangeable two side wheels of said second set.
References Cited (Backward Citations)
DE1074211B
Cited
US1239145A
Cited
FR1105394A
Cited
DE1541163A1
Cited
FR1526087A
Cited
US3790805A
Cited
EP0231969A1
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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) | 1992-12-11 | 1993-06-12 | 1993-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-11 | 1997-06-12 | 1997-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-11 | 2001-06-12 | 2001-12-12 | $7700.00 | Window Closed / Lapsed |