Patent US4288925A successfully refreshed from Google Patents.
US4288925A
Expired / Lapsed
US
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Probe for use in measuring apparatus
Assignee: Renishaw PLC
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Filing: 1979-05-17
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Granted: 1981-09-15
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Expires: 1999-05-17
Abstract
Abstract A probe for use in measuring apparatus has a base member including a two-dimensional seat for an intermediate member which, in turn, includes a two-dimensional seat for a stylus holder. The two seats face in opposite directions so that the stylus holder can be displaced from the seated position in either of two opposite directions.
Inventors
- 👤 David R. McMurtry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:20
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/004; G01B7/008; G01B7/012
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
194 words
A probe for use in measuring apparatus, comprising a housing having a first two-dimensional seat therein, an intermediate member in said housing, bias means connected between the housing and the intermediate member to urge the intermediate member into engagement with the first seat thereby to support the intermediate member on the first seat, in a rest position, the intermediate member being tiltable on, and being linearly separable from, the first seat when displaced from said rest position in opposition to the bias means, a second two-dimensional seat provided on the intermediate member and facing in a direction opposite to that in which the first seat faces, a stylus holder, a further bias means connected between the stylus holder and the intermediate member to urge the stylus holder into engagement with the second seat thereby to support the stylus holder on the second seat in a rest position, the stylus holder being tiltable on, and being linearly separable from, the second seat when displaced from said rest position in opposition to the further bias means, and means responsive to the separation of the intermediate member and stylus holder from said first and second seats, respectively.
Claim 2
Dependent Claim
194 words
A probe for use in measuring apparatus, comprising a housing having a first two-dimensional seat therein, an intermediate member in said housing, bias means connected between the housing and the intermediate member to urge the intermediate member into engagement with the first seat thereby to support the intermediate member on the first seat, in a rest position, the intermediate member being tiltable on, and being linearly separable from, the first seat when displaced from said rest position in opposition to the bias means, a second two-dimensional seat provided on the intermediate member and facing in a direction opposite to that in which the first seat faces, a stylus holder, a further bias means connected between the stylus holder and the intermediate member to urge the stylus holder into engagement with the second seat thereby to support the stylus holder on the second seat in a rest position, the stylus holder being tiltable on, and being linearly separable from, the second seat when displaced from said rest position in opposition to the further bias means, and means responsive to the separation of the intermediate member and stylus holder from said first and second seats, respectively.
Claim 3
Dependent Claim
81 words
A probe according to claim 1, further comprising an axisymmetric arrangement of support members defining said first seat, the intermediate member includes an axisymmetric arrangement of support members co-operating with said support members defining first seat to support the intermediate member, the intermediate member includes an axisymmetric arrangement of support members defining said second seat, and the stylus holder includes an axisymmetric arrangement of support members co-operating with the said support members defining the second seat to support the stylus holder.
Claim 4
Dependent Claim
28 words
A probe according to claim 2, wherein the support members defining the first seat and the support members defining the second seat are arranged alternately in annular succession.
Claim 5
Dependent Claim
109 words
A probe according to claim 3, wherein in any set of three annularly successive support members included in the intermediate member the first and second member of the set define a pair of convergent surface elements, each of the support members defining the first seat is situated between a said pair of convergent surface elements and co-operates therewith to support the intermediate member, the second and third member of said set define a further pair of convergent surface elements, and each of the support members provided on the stylus holder is situated between a said further pair of convergent surface elements for the stylus holder to be supported thereby.
Claim 6
Dependent Claim
28 words
A probe according to claim 2, wherein the support members defining the first seat are arranged on common radii with respective said support members defining the second seat.
Claim 7
Dependent Claim
73 words
A probe according to claim 4, wherein each support member included in the intermediate member defines a pair of spaced apart surface elements, each support member defining the first seat co-operates with one of the surface elements of a said pair to support the intermediate member, and each support member included in the stylus holder co-operates with the other surface element of a said pair for the stylus holder to be supported thereon.
Claim 8
Dependent Claim
18 words
A probe according to claim 2, wherein the first and second seats are situated in a common plane.
Claim 9
Dependent Claim
18 words
A probe according to claim 2, wherein the first and second seats are situated at spaced apart planes.
Claim 10
Dependent Claim
193 words
A probe for use in measuring apparatus, comprising a base member having a first two-dimensional seat thereon, an intermediate member, bias means connected to the base member and the intermediate member to urge the intermediate member into engagement with the first seat thereby to support the intermediate member on the first seat in a rest position, the intermediate member being tiltable on, and being linearly separable from, the first seat when displaced from said rest position in opposition to the bias means, a second two-dimensional seat provided on the intermediate member and facing in a direction opposite to that in which the first seat faces, a stylus holder, a further bias means connected to the stylus holder and the intermediate member to urge the stylus holder into engagement with the second seat thereby to support the stylus holder on the second seat in a rest position, the stylus holder being tiltable on, and being linearly separable from, the second seat when displaced from said rest position in opposition to the further bias means, and means responsive to the separation of the intermediate member and stylus holder from said first and second seats, respectively.
Claim 11
Dependent Claim
193 words
A probe for use in measuring apparatus, comprising a base member having a first two-dimensional seat thereon, an intermediate member, bias means connected to the base member and the intermediate member to urge the intermediate member into engagement with the first seat thereby to support the intermediate member on the first seat in a rest position, the intermediate member being tiltable on, and being linearly separable from, the first seat when displaced from said rest position in opposition to the bias means, a second two-dimensional seat provided on the intermediate member and facing in a direction opposite to that in which the first seat faces, a stylus holder, a further bias means connected to the stylus holder and the intermediate member to urge the stylus holder into engagement with the second seat thereby to support the stylus holder on the second seat in a rest position, the stylus holder being tiltable on, and being linearly separable from, the second seat when displaced from said rest position in opposition to the further bias means, and means responsive to the separation of the intermediate member and stylus holder from said first and second seats, respectively.
Claim 12
Dependent Claim
82 words
A probe according to claim 9, further comprising an axisymmetric arrangement of support members defining said first seat, the intermediate member includes an axisymmetric arrangement of support members co-operating with said support members defining said first seat to support the intermediate member, the intermediate member includes an axisymmetric arrangement of support members defining said second seat, and the stylus holder includes an axisymmetric arrangement of support members co-operating with the said support members defining the second seat to support the stylus holder.
Claim 13
Dependent Claim
28 words
A probe according to claim 10, wherein the support members defining the first seat and the support members defining the second seat are arranged alternately in annular succession.
Claim 14
Dependent Claim
109 words
A probe according to claim 11, wherein in any set of three annularly successive support members included in the intermediate member the first and second member of the set define a pair of convergent surface elements, each of the support members defining the first seat is situated between a said pair of convergent surface elements and co-operates therewith to support the intermediate member, the second and third member of said set define a further pair of convergent surface elements, and each of the support members provided on the stylus holder is situated between a said further pair of convergent surface elements for the stylus holder to be supported thereby.
Claim 15
Dependent Claim
28 words
A probe according to claim 10, wherein the support members defining the first seat are arranged on common radii with respective said support members defining the second seat.
Claim 16
Dependent Claim
73 words
A probe according to claim 13, wherein each support member included in the intermediate member defines a pair of spaced apart surface elements, each support member defining the first seat co-operates with one of the surface elements of a said pair to support the intermediate member, and each support member included in the stylus holder co-operates with the other surface element of a siad pair for the stylus holder to be supported thereon.
Claim 17
Dependent Claim
18 words
A probe according to claim 10, wherein the first and second seats are situated in a common plane.
Claim 18
Dependent Claim
18 words
A probe according to claim 10, wherein the first and second seats are situated at spaced apart planes.
Claim 19
Dependent Claim
54 words
A probe according to claim 9 comprising a spigot provided on the base member whereby the base member is itself supportable, the base member defining a supportable end including said spigot and opposite thereto a free end, and wherein said first seat is provided at said free end and faces toward said supportable end.
Claim 20
Dependent Claim
60 words
A probe according to claim 14 further comprising a first planar spring connected between the support member and the intermediate member, a second planar spring connected between the support member and the stylus holder, the planar springs co-operating to constrain the intermediate member and the stylus holder, respectively, against displacement transversely to and about the axis of said axisymmetric arrangement.
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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) | 1984-09-14 | 1985-03-16 | 1985-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-14 | 1989-03-16 | 1989-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-14 | 1993-03-16 | 1993-09-15 | $7700.00 | Window Closed / Lapsed |