US3936208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflector stud
Assignee: Dunlop Ltd
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Filing: 1974-03-28
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Granted: 1976-02-03
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Expires: 1994-03-28
Abstract
Abstract A road marker stud of cat's eye is made of a rubber housing and is to be adhered to the road surface. The housing is provided with surface channels or cavities which divide it into substantially independent flex zones. At least one reflector element is housed in a side face of the housing, the side face extending parallel to one of the channels or cavities. The stresses of impacting wheels are thereby better accommodated.
Inventors
- 👤 Frederick Baynes
- 👤 James Munro Lawrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:29
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/553
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
82 words
A unitary reflector stud housing of elastomeric material of a hardness from 60 to 95 I.R.H.D. and having a substantially flat under surface to be adhered to a road surface, channels in said housing in the surface opposite to said flat under surface dividing the housing into zones which can deform substantially independently of each other, said housing having at least one side face extending substantially parallel to one of said channels, said side face containing a location for a reflector element.
Claim 2
Dependent Claim
82 words
A unitary reflector stud housing of elastomeric material of a hardness from 60 to 95 I.R.H.D. and having a substantially flat under surface to be adhered to a road surface, channels in said housing in the surface opposite to said flat under surface dividing the housing into zones which can deform substantially independently of each other, said housing having at least one side face extending substantially parallel to one of said channels, said side face containing a location for a reflector element.
Claim 3
Dependent Claim
31 words
A reflector stud having according to claim 1, in which the surface which is to be adhered to the road surface is substantially parallel to the surface which contains said channels.
Claim 4
Dependent Claim
20 words
A reflector stud having according to claim 1, in which the location for the reflector element is a lipped recess.
Claim 5
Dependent Claim
24 words
A reflector stud having according to claim 1, which is formed from an elastomeric composition having a hardness of from 85 to 90 I.R.H.D.
Claim 6
Dependent Claim
95 words
A reflector stud comprising a housing which is of elastomeric material of a hardness of 60 to 95 I.R.H.D. and having a substantially flat under surface to be adhered to a road surface, said housing being divided by means of channels in said housing in the surface opposite to said flat under surface into zones which can deform substantially independently of each other, said housing having at least one side face extending substantially parallel to one of said channels, said side face containing a location for a reflector element, and a reflector element mounted therein.
Claim 7
Dependent Claim
95 words
A reflector stud comprising a housing which is of elastomeric material of a hardness of 60 to 95 I.R.H.D. and having a substantially flat under surface to be adhered to a road surface, said housing being divided by means of channels in said housing in the surface opposite to said flat under surface into zones which can deform substantially independently of each other, said housing having at least one side face extending substantially parallel to one of said channels, said side face containing a location for a reflector element, and a reflector element mounted therein.
Claim 8
Dependent Claim
29 words
A reflector stud according to claim 5, in which the surface which is to be adhered to the rod is substantially parallel to the surface which contains said channels.
Claim 9
Dependent Claim
19 words
A reflector stud according to claim 5, in which the location for the reflector element is a lipped recess.
Claim 10
Dependent Claim
26 words
A reflector stud according to claim 5, in which the housing is formed from an elastomeric composition having a hardness of from 85 to 90 I.R.H.D.
Claim 11
Dependent Claim
21 words
A reflector stud according to claim 5, in which the reflector element is a strip of rigid material containing reflective media.
References Cited (Backward Citations)
US2005170A
Cited
US2065314A
Cited
US2229179A
Cited
US3516337A
Cited
US3693511A
Cited
US3758191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-02 | 1979-08-04 | 1980-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-02 | 1983-08-04 | 1984-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-02 | 1987-08-04 | 1988-02-03 | $7700.00 | Window Closed / Lapsed |