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US3771193A Expired / Lapsed US ⏱️ 0.0 years remaining

Suction cleaning nozzle for high pile rugs

Assignee: Individual
•
Filing: 1971-12-23
•
Granted: 1973-11-13
•
Expires: 1991-12-23
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Abstract

Abstract A suction cleaning nozzle for high pile rugs having a longitudinal nozzle suction chamber enclosed at the bottom with a base having a plurality of aligned but spaced oblong tubular extensions. Apertures into the chamber may be provided between the tubular extensions. The longitudinal extent of the oblong tubular extensions may be aligned both normally and transversely to the longitudinal extent of the nozzle suction chamber with each of such extensions provided with a pair of cutouts at its extended end.

Inventors

  • 👤 N Hageal

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 13:38
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 185 words
A suction cleaning nozzle for use primarily with high pile rugs comprising in combination a rigid elongated nozzle attachment having a base and integral side flange for the full perimetral extent thereof forming a shoulder, a plurality of spaced oblong outwardly open tubular extensions integral with and aligned transversely relative to the longitudinal extent of said base, said extensions extending from said base in a direction opposite to that of said side flange, oppositely positioned cutouts provided on the lower end and at the longitudinal extent of each of said extensions, a plurality of apertures in said base, each such aperture positioned between selected oblong extensions, an elongated nozzle body portion having a connecting shank, a continuous resilient side wall for the full perimetral extent of said body portion, an inwardly disposed flexible flange integral for the full extent of said side wall, said resilient side wall and flexible flange forming a chamber forming a chamber adapted upon flexure of said side wall and said flange to retainably receive said nozzle attachment therein due to the encompassment of said attachment shoulder by said flexible flange.
Claim 2
Dependent Claim 185 words
A suction cleaning nozzle for use primarily with high pile rugs comprising in combination a rigid elongated nozzle attachment having a base and integral side flange for the full perimetral extent thereof forming a shoulder, a plurality of spaced oblong outwardly open tubular extensions integral with and aligned transversely relative to the longitudinal extent of said base, said extensions extending from said base in a direction opposite to that of said side flange, oppositely positioned cutouts provided on the lower end and at the longitudinal extent of each of said extensions, a plurality of apertures in said base, each such aperture positioned between selected oblong extensions, an elongated nozzle body portion having a connecting shank, a continuous resilient side wall for the full perimetral extent of said body portion, an inwardly disposed flexible flange integral for the full extent of said side wall, said resilient side wall and flexible flange forming a chamber forming a chamber adapted upon flexure of said side wall and said flange to retainably receive said nozzle attachment therein due to the encompassment of said attachment shoulder by said flexible flange.
Claim 3
Dependent Claim 148 words
A suction cleaning nozzle essentially comprising a rigid elongated nozzle attachment adapted to be received and retained in an elongated nozzle body portion having a shank for connection to a vacuum cleaning hose, characterized in that said attachment comprises a base with a plurality of dependIng spaced oblong tubular, open ended extensions on one side thereof aligned transversely relative to the longitudinal extent of said base, an integral perimetral flange on the other side of said base forming a shoulder with the latter, said body portion having a perimetral resilient side wall with an inwardly disposed flexible flange integral with the outer edge of said side wall, said resilient side wall and flexible flange forming a chamber adapted upon flexure of said flange and side wall to retainably receive said nozzle attachment retained within said chamber due to the encompassment of said attachment shoulder by said flexible flange.
Claim 4
Dependent Claim 148 words
A suction cleaning nozzle essentially comprising a rigid elongated nozzle attachment adapted to be received and retained in an elongated nozzle body portion having a shank for connection to a vacuum cleaning hose, characterized in that said attachment comprises a base with a plurality of dependIng spaced oblong tubular, open ended extensions on one side thereof aligned transversely relative to the longitudinal extent of said base, an integral perimetral flange on the other side of said base forming a shoulder with the latter, said body portion having a perimetral resilient side wall with an inwardly disposed flexible flange integral with the outer edge of said side wall, said resilient side wall and flexible flange forming a chamber adapted upon flexure of said flange and side wall to retainably receive said nozzle attachment retained within said chamber due to the encompassment of said attachment shoulder by said flexible flange.
Claim 5
Dependent Claim 29 words
The suction cleaning nozzle of claim 2 characterized by a pair of oppositely disposed cutouts provided on the end of each of said extensions midway of its longitudinal extent.
Claim 6
Dependent Claim 25 words
The suction cleaning nozzle of claim 2 characterized by a plurality of apertures provided in said base, each such aperture positioned between selected oblong extensions.
Claim 7
Dependent Claim 28 words
The suction cleaning nozzle of claim 2 characterized by a pair of oppositely disposed cutouts provided on the end of each of said extensions at its longitudinal extent.

References Cited (Backward Citations)

US963049A Cited
US1051714A Cited
US2065592A Cited
US2130635A Cited
US2610352A Cited
US3668735A Cited
US3689956A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-11-12 1977-05-14 1977-11-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-11-12 1981-05-14 1981-11-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-11-12 1985-05-14 1985-11-13 $7700.00 Window Closed / Lapsed

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