Patent US3733697A successfully refreshed from Google Patents.
US3733697A
Expired / Lapsed
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Method of making a vacuum cleaner hose assembly
Assignee: WICKHAM W US
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Filing: 1971-07-28
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Granted: 1973-05-22
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Expires: 1991-07-28
Abstract
Abstract A vacuum hose is provided having a plurality of reinforcing wires in the form of electrical conductors which are made as an integral part of the hose and each conductor has electrical components fixed to its opposite ends. A pair of hose connectors is provided at opposite ends of the hose end formed substantially as an integral part thereof to define an assembly with each hose connector having associated electrical components embedded therein and providing the sole support therefor.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:55
CPC Classifications
H; H01; H01B; H01B13/00; H01B7/00; H01B7/0072; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49174; Y10T29/49176
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
81 words
A method of making a unitary vacuum cleaner hose assembly having a plurality of axially spaced electrically conducting reinforcing coils with axially alternating turns terminating in outwardly extending ends; comprising the steps of affixing electrical means to at least one end of said coils, placing and supporting said end within a mold cavity, introducing a thermoplastic material into said cavity under heat and pressure, and forming an integral hose connector on said end to embed and support said end and means.
Claim 2
Independent Claim
81 words
A method of making a unitary vacuum cleaner hose assembly having a plurality of axially spaced electrically conducting reinforcing coils with axially alternating turns terminating in outwardly extending ends; comprising the steps of affixing electrical means to at least one end of said coils, placing and supporting said end within a mold cavity, introducing a thermoplastic material into said cavity under heat and pressure, and forming an integral hose connector on said end to embed and support said end and means.
Claim 3
Dependent Claim
43 words
The method of claim 1 including the steps of affixing a male electrical connector means to one end of said coils, affixing a female electrical connector means to the other end of said coils, and embedding said means within their respective hose connectors.
Claim 4
Dependent Claim
27 words
The method of claim 1 including the steps of affixing an electrical control device to one end of said coils, and embedding said device within said connector.
Claim 5
Dependent Claim
14 words
The method of claim 3 in which said device is an electrical control switch.
Claim 6
Dependent Claim
51 words
The method of claim 1 including the steps of affixing electrical means to both ends of said coils, placing and supporting both ends of said coils and corresponding means within adjacent mold cavities, and simultaneously forming integral hose connectors on said ends to embed and support said ends and corresponding means.
References Cited (Backward Citations)
US2727299A
Cited
US2769997A
Cited
FR1297597A
Cited
US3275423A
Cited
US3387319A
Cited
US3588943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |