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(12)

United

States

Patent

Woerwag

US008752241B2

8,752,241

Jun.

17,

2014

(10)

Patent

N0.:

(45)

Date

Patent:

(54)

VACUUM

CLEANER

NOZZLE

WITH

MAGNETIC

LOCK

(75)

Inventor:

Peter

Woerwag,

Staad

(CH)

(73)

Assignee:

Duepro

AG,

Romanshom

(CH)

(

)

Notice:

Subject

any

disclaimer,

the

term

this

patent

extended

or adjusted

under

U.S.C.

154(b)

335

days.

(21)

Appl.No.:

13/267,831

(22)

Filed:

Oct.

2011

(65)

Prior

Publication

Data

2012/0090131A1

Apr.

19,

2012

(30)

Foreign

Application

Priority

Data

Oct.

2010

(DE)

.......................

2010

038 026

(51)

Int.

C1.

9/00

9/10

(52)

US.

Cl.

USPC

................................

15/351;

15/410;

15/411

(58)

Field

Classi?cation

CPC

..................................

A47L

9/00;

A47L

9/10

USPC

..........................................

15/351,410,411

See

application

?le

for

complete

history.

(2006.01)

(56)

References

Cited

U.S.

PATENT

DOCUMENTS

882,574

3/1908

Moukos

1,072,607

9/1913

Guthorn

1,086,367

2/1914

Hope

1,139,736

5/1915

Stabel

1,161,908

11/1915

Tice

2,038,697

4/1936

Winslow

2,162,313

6/1939

McCabe

a1.

2,170,963

8/1939

Dahl

2,203,088

6/1940

Hansson

2,246,438

6/1941

Hedlund

2,710,204

6/1955

Faith-Ell

2,974,347

3/1961

Seyfried

3,159,412

12/1964

Descarries

3,203,023

8/1965

Jepson

a1.

3,245,698

4/1966

Fromknecht

3,351,359

11/1967

Ferraris

3,354,496

11/1967

Jonsson

3,512,207

5/1970

Ettridge

(Continued)

FOREIGN

PATENT

DOCUMENTS

2052606

5/1972

3904395

8/1990

(Continued)

OTHER

PUBLICATIONS

Hoover

Powered

Nozzle

Tilt

image,

Jan.

1980,

www.?0rijanit0rial.

com.

(Continued)

Primary

Examiner

David

Redding

(74)

Attorney,

Agent,

Firm

Kolisch

Hartwell,

PC.

(57)

ABSTRACT

suction

nozzle

has

housing,

tilting

bearing,

connection

nozzle, a

lock

for

the

tilting

bearing,

connection

nozzle, a

lock

for

the

tilting

bearing,

actuators

and

housing

duct.

The

tilting

joint

has

bearing

connected

rigidly

the

housing

and

connector

piece

which

pivotally

mounted

about

axis

The

lock has

?rst

locking

element,

which

mounted

rotat

ably

the

housing,

and

second

locking

element,

which

rigidly

connected

the

connecting

piece

the

tilting

oint.

restoring

force

for

the

?rst

locking

element

generated

magnets.

Claims,

Drawing

Sheets

1 2 3 4 5 6 ... 19 20

8,752,241 1
References 2

Podsumowanie treści

Strona 1 - 8,752,241

(12) United States Patent Woerwag US008752241B2 US 8,752,241 B2 Jun. 17, 2014 (10) Patent N0.: (45) Date of Patent: (54) VACUUM CLEANER NOZZLE WITH MA

Strona 2 - References

US 8,752,241 B2 Sheet 8 0f 14 Jun. 17, 2014 US. Patent

Strona 3

US 8,752,241 B2 Sheet 9 0f 14 Jun. 17, 2014 US. Patent I m .mE

Strona 4

US 8,752,241 B2 Sheet100fl4 Jun.17,2014 US. Patent

Strona 5

US 8,752,241 B2 Sheet11'0f14 Jun.17,2014 US. Patent . viii» .22 w.

Strona 6

US 8,752,241 B2 Sheet120fl4 Jun.17,2014 US. Patent \\ NP .5

Strona 7

US 8,752,241 B2 Sheet130fl4 Jun.17,2014 US. Patent

Strona 8

US 8,752,241 B2 Sheet140fl4 Jun.17,2014 US. Patent .1 .mm

Strona 9

US 8,752,241 B2 1 VACUUM CLEANER NOZZLE WITH MAGNETIC LOCK CROSS-REFERENCE TO RELATED APPLICATION This application claims priority to German Patent Ap

Strona 10

US 8,752,241 B2 3 that embodiment in which actuation of the actuator proceeds perpendicularly to the pivot axis, for example from above. The actuator

Strona 11

US 8,752,241 B2 5 FIG. 4, too, shows this clearly. The connection nozzle 4 is thus securely held in a parking position in an essentially vertical ori

Strona 12

US 8,752,241 B2 Page 2 (56) References Cited U.S. PATENT DOCUMENTS 3,553,629 A 1/1971 Brown et al. 3,565,464 A 2/1971 Wolf 3,633,942 A 1/1972 Meyerhoe

Strona 13

US 8,752,241 B2 7 F. The suction head (1) in accordance with claim A, wherein the ?rst locking element (50) is formed as a rocker, which has a rotary

Strona 14

US 8,752,241 B2 Sheet 1 0f 14 Jun. 17, 2014 US. Patent F .5

Strona 15

US 8,752,241 B2 Sheet 2 0f 14 Jun. 17, 2014 US. Patent N .3

Strona 16

US 8,752,241 B2 Sheet 3 0f 14 Jun. 17, 2014 US. Patent mom m .5

Strona 17

US 8,752,241 B2 Sheet 4 0f 14 Jun. 17, 2014 US. Patent

Strona 18

US 8,752,241 B2 Sheet 5 0f 14 Jun. 17, 2014 US. Patent