US5077911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll tape measure
Assignee: Stabila Messgeraete Gustav Ullrich GmbH
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Filing: 1991-02-13
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Granted: 1992-01-07
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Expires: 2011-02-13
Abstract
Abstract The invention relates to a roll tape measure comprising an extractable measuring tape. Attached to the free end of the measuring tape (1) is a stop hook (4) which comprises a stop member (5) which projects approximately at right angles with respect to the measuring tape (1). That surface (6) of the stop member (5) which faces the measuring tape (1) is coated with friction bodies (7). These consist, for example, of sapphire crystals having a grain size of approximately 0,12 mm. This coating with friction bodies (7) provides the stop hook (4) with a good grip on the edge of the objects to be measured and with a high degree of resistance to wear.
Inventors
- 👤 Peter von Wedemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:47
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/10; G01B3/1056
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
106 words
A roll tape measure, comprising a measuring tape, having at its free end a stop member which projects approximately at right angles with respect to the measuring tape and which is intended for the abutment of the tape on the edge or the rim of an object to be measured, the abutting side of the stop member which faces the object to be measured having friction bodies in the from of fine crystals of mineral or synthetic materials to roughen such abutting side, which friction bodies have hard and sharp edges and/or points, and the grain size of which is not greater than approximately 0.25 mm.
Claim 2
Dependent Claim
106 words
A roll tape measure, comprising a measuring tape, having at its free end a stop member which projects approximately at right angles with respect to the measuring tape and which is intended for the abutment of the tape on the edge or the rim of an object to be measured, the abutting side of the stop member which faces the object to be measured having friction bodies in the from of fine crystals of mineral or synthetic materials to roughen such abutting side, which friction bodies have hard and sharp edges and/or points, and the grain size of which is not greater than approximately 0.25 mm.
Claim 3
Dependent Claim
32 words
Roll tape measure according to claim 1, in which the friction bodies comprise a material which, according to the Mohs' hardness scale, has a degree of hardness of at least approximately 4.
Claim 4
Dependent Claim
29 words
Roll tape measure according to claim 1, in which the friction bodies comprise a material selected from the group consisting of glass, silicate, quartz, feldspar, sapphire, corundum and diamond.
Claim 5
Dependent Claim
19 words
Roll tape measure according to claim 1, in which the friction bodies are applied essentially in a single layer.
Claim 6
Dependent Claim
19 words
Roll tape measure according to claim 1, in which the friction bodies are glued on to the stop member.
Claim 7
Dependent Claim
23 words
Roll tape measure according to claim 1, in which the friction bodies are applied only to a partial region of the abutting side.
Claim 8
Dependent Claim
33 words
Roll tape measure according to claim 6, in which the friction bodies are applied in a strip-shaped region of the abutting side which is disposed at the free end of the stop member.
Claim 9
Dependent Claim
26 words
Roll tape measure according to claim 1, in which the friction bodies are, at least partially, arranged to be distributed in spaced relationship from each other.
Claim 10
Dependent Claim
22 words
Roll tape measure according to claim 1, in which the friction bodies are arranged to be tightly packed in a closed layer.
Claim 11
Dependent Claim
20 words
Roll tape measure according to claim 1, in which the abutting side of the stop member faces the measuring tape.
Claim 12
Dependent Claim
20 words
Roll tape measure according to claim 1, in which the grain size of the friction bodies is approximately 0.12 mm.
Claim 13
Dependent Claim
18 words
Roll tape measure according to claim 1, in which the friction bodies are sinted onto the stop member.
Claim 14
Dependent Claim
18 words
Roll tape measure according to claim 1, in which the friction bodies are electro-embedded in the stop member.
Claim 15
Dependent Claim
28 words
Roll tape measure according to claim 1, in which the friction bodies comprise material which, according to the Mohs' hardness scale, has a degree of hardness of 6.
Claim 16
Dependent Claim
29 words
Roll tape measure according to claim 11, in which the friction bodies comprise a material selected from the group consisting of glass, silicate, quartz, feldspar, sapphire, corundum and diamond.
Claim 17
Dependent Claim
28 words
Roll tape measure according to claim 15, in which the friction bodies comprise material which, according to the Mohs' hardness scale, has a degree of hardness of 6.
Claim 18
Dependent Claim
23 words
Roll tape measure according to claim 16, in which the friction bodies are applied only to a partial region of the abutting side.
Claim 19
Dependent Claim
22 words
Roll tape measure according to claim 17, in which the friction bodies are applied in a strip-shaped region of the abutting side.
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) | 1995-01-06 | 1995-07-08 | 1996-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |