US4215829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coilable tape measures
Assignee: Rabone Chesterman Ltd
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Filing: 1979-05-04
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Granted: 1980-08-05
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Expires: 1999-05-04
Abstract
Abstract A coilable tape measure comprising a casing, a coilable tape and a recoil spring having its outer end connected to the inner end of the tape, the spring being mounted on a fixed inner spool and the tape being mounted on a rotatable outer spool and the inner spool being prevented from rotating by pegs in the casing engaging holes in the inner spool.
Inventors
- 👤 John A. Boyllin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:12
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/10; G01B3/1041; G01B3/1043
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
108 words
A coilable tape measure comprising a casing, a coilable tape having an outer end extending through an opening in the wall of the casing, and a recoil spring having its outer end connected to the inner end of the tape, the spring being mounted on an inner spool and the tape being mounted on a concentric outer spool rotatably mounted with respect to the inner spool and the inner spool being provided with means for preventing rotation thereof relatively to the casing, said means comprising a number of pegs and corresponding openings on a pitch circle of which the centre coincides with the common axis of the spools.
Claim 2
Dependent Claim
108 words
A coilable tape measure comprising a casing, a coilable tape having an outer end extending through an opening in the wall of the casing, and a recoil spring having its outer end connected to the inner end of the tape, the spring being mounted on an inner spool and the tape being mounted on a concentric outer spool rotatably mounted with respect to the inner spool and the inner spool being provided with means for preventing rotation thereof relatively to the casing, said means comprising a number of pegs and corresponding openings on a pitch circle of which the centre coincides with the common axis of the spools.
Claim 3
Dependent Claim
35 words
A measure as claimed in claim 1 in which the outer spool is formed from two parts secured together, and defining an opening through which the spring outer end and tape inner end are connected.
Claim 4
Dependent Claim
28 words
A measure as claimed in claim 1 or claim 2 in which the inner and outer spools are formed from material having a relatively low coefficient of friction.
Claim 5
Dependent Claim
34 words
A measure as claimed in any one of the preceding claims 1 or 2 in which the inner spool has a plurality of said openings and the corresponding pegs are formed on the casing.
Claim 6
Dependent Claim
28 words
A measure as claimed in any one of the preceding claims 1 or 2 in which the openings are circular holes and the pegs are circular section pegs.
Claim 7
Dependent Claim
35 words
A measure as claimed in any one of the preceding claims 1 or 2 in which there are more openings than corresponding pegs, to permit angular adjustment of the inner spool relatively to the casing.
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) | 1983-08-05 | 1984-02-04 | 1984-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-05 | 1988-02-04 | 1988-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-05 | 1992-02-04 | 1992-08-05 | $7700.00 | Window Closed / Lapsed |