Patent US3273143A successfully refreshed from Google Patents.
US4660246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Versatile vacuum cleaning appliance
Assignee: SINGER ACQUISITION HOLDINGS COMPANY 8 STAMFORD FORUM STAMFORD CT 06904 A DE CORP
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Filing: 1986-04-14
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Granted: 1987-04-28
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Expires: 2006-04-14
Abstract
Abstract A vacuum cleaner having pivotally interconnected body and nozzle head portions and a handle which is extendable for upright floor cleaning operation or retractable for hand carried or cannister type vacuuming operation, in which the handle in retracted position fixes the cleaner body and nozzle head portions against pivotal movement.
Inventors
- 👤 John L. Duncan
- 👤 John E. Jones
- 👤 Martin E. Harbeck
- 👤 Stephen R. Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:11
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/32; A47L5/00; A47L5/12; A47L5/22; A47L5/24
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
171 words
A vacuum cleaner having a body portion, a head portion having a vacuum nozzle, a pivotal connection between said body portion and said cleaner head, and stop means associated with said pivotal connection limiting pivotal movement of said parts to within a predetermined angular range; a vacuum cleaner handle shiftably supported on said body portion for movement between an extended position for operation of said cleaner in an upright floor supported mode and a retracted position for operation of said cleaner in a hand carried mode; first interlock means between said handle and said body portion for retaining said handle in said extended position; second interlock means betwen said handle and said body portion for retaining said handle in said retracted position; and cooperating surfaces formed on said handle and on said cleaner head, which surfaces in the retracted position of said handle are contiguous and constrain said cleaner head against pivotal movement relative to said body portion in one extreme limit of the angular range permitted by said stop means.
Claim 2
Dependent Claim
171 words
A vacuum cleaner having a body portion, a head portion having a vacuum nozzle, a pivotal connection between said body portion and said cleaner head, and stop means associated with said pivotal connection limiting pivotal movement of said parts to within a predetermined angular range; a vacuum cleaner handle shiftably supported on said body portion for movement between an extended position for operation of said cleaner in an upright floor supported mode and a retracted position for operation of said cleaner in a hand carried mode; first interlock means between said handle and said body portion for retaining said handle in said extended position; second interlock means betwen said handle and said body portion for retaining said handle in said retracted position; and cooperating surfaces formed on said handle and on said cleaner head, which surfaces in the retracted position of said handle are contiguous and constrain said cleaner head against pivotal movement relative to said body portion in one extreme limit of the angular range permitted by said stop means.
Claim 3
Dependent Claim
171 words
A vacuum cleaner as set forth in claim 1 in which said handle comprises at least two telescopically arranged sections including a base section pivotally secured to said cleaner body portion and another section formed with a hand grip, in which said interlock between said handle and said cleaner body portion for retaining said handle in retracted position comprises mating surfaces on said body portion and on said hand grip section of said handle which surfaces are interengageable upon telescopic movement of said handle sections, and in which said cooperating surfaces on said handle and on said cleaner head comprise a cam means formed on said hand grip section of said handle and a follower surface formed on said cleaner head, said cooperating cam and follower surfaces being effective during telescopic movement of said handle sections into interlocked relation with said cleaner body portion in said retracted position to urge said cleaner head into one extreme limit of the angular range relative to said body portion permitted by said stop means.
Claim 4
Dependent Claim
65 words
A vacuum cleaner as set forth in claim 2 in which said hand grip comprises an extremity of said another handle section formed to extend obliquely from said another handle section, and in which said obliquely extending hand grip forms the cam means constraining the cleaner head into one extreme limit of the angular range relative to said body portion permitted by said stop means.
Claim 5
Dependent Claim
45 words
A vacuum cleaner as set forth in claim 1 in which a hose accommodating socket is provided on said head portion of said cleaner including valve means effective when a hose is accommodatd in said socket for blocking the air conduit to said vacuum nozzle.
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) | 1990-04-27 | 1990-10-27 | 1991-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-27 | 1994-10-27 | 1995-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-27 | 1998-10-27 | 1999-04-28 | $7700.00 | Window Closed / Lapsed |