US4524808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner hose
Assignee: TECHNOCHEMIE KESSLER & Co FRANKFURT/MAIN GERMANY A GERMAN CORP GmbH
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Filing: 1984-01-31
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Granted: 1985-06-25
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Expires: 2004-01-31
Abstract
Abstract A supplementary hose attached to a main vacuum cleaner hose for carrying an electrical line is seated in a groove formed in the outside surface of the main vacuum cleaner hose. To increase the flexibility of the vacuum cleaner hose in all directions, the wall of the supplementary hose is perforated.
Inventors
- 👤 Wolfgang Fleischer
- 👤 Leo Eichelberger
- 👤 Georg Endress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:16
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/24; F; F16; F16L; F16L11/00; F16L11/04; F16L11/12; F16L11/127
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
A vacuum cleaner component comprising: a flexible main hose having an enclosing wall extending in part in a longitudinal direction, said wall having on an outer surface a groove extending in said longitudinal direction; and a flexible supplementary hose for housing an electrical line extending in said longitudinal direction, said supplementary hose being attached to said main hose and disposed in part in said groove, said supplementary hose having a perforated wall for increased flexibility, said perforated wall substantially taking the form of a series of spaced cylindrical sections separated by cuts extending substantially transversely to said longitudinal direction.
Claim 2
Dependent Claim
99 words
A vacuum cleaner component comprising: a flexible main hose having an enclosing wall extending in part in a longitudinal direction, said wall having on an outer surface a groove extending in said longitudinal direction; and a flexible supplementary hose for housing an electrical line extending in said longitudinal direction, said supplementary hose being attached to said main hose and disposed in part in said groove, said supplementary hose having a perforated wall for increased flexibility, said perforated wall substantially taking the form of a series of spaced cylindrical sections separated by cuts extending substantially transversely to said longitudinal direction.
Claim 3
Dependent Claim
23 words
The vacuum cleaner component defined in claim 1 wherein at least one of said cuts is in the form of a cyclindrical section.
Claim 4
Dependent Claim
23 words
The vacuum cleaner component defined in claim 1 wherein at least one of said cuts is in the form of a wedge-shaped segment.
Claim 5
Dependent Claim
81 words
A vacuum cleaner component comprising: a flexible main hose having an enclosing wall extending in part in a longitudinal direction, said wall having on an outer surface a groove extending in said longitudinal direction; and a flexible supplementary hose for housing an electrical line extending in said longitudinal direction, said supplementary hose being attached to said main hose and disposed in part in said groove, said supplementary hose having a perforated wall in the form of a helix for increased flexibility.
Claim 6
Dependent Claim
81 words
A vacuum cleaner component comprising: a flexible main hose having an enclosing wall extending in part in a longitudinal direction, said wall having on an outer surface a groove extending in said longitudinal direction; and a flexible supplementary hose for housing an electrical line extending in said longitudinal direction, said supplementary hose being attached to said main hose and disposed in part in said groove, said supplementary hose having a perforated wall in the form of a helix for increased flexibility.
References Cited (Backward Citations)
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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) | 1988-06-24 | 1988-12-24 | 1989-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-24 | 1992-12-24 | 1993-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-24 | 1996-12-24 | 1997-06-25 | $7700.00 | Window Closed / Lapsed |