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United

States

Patent

1191

Pink

llllllllllllllIlllllllllilllllllllllllllllllll'

US005644844A

5,644,844

*Jul.

1997

[11]

Patent

Number:

[45]

Date

Patent:

[54]

FILAMENT

TRIMMER

[75]

Inventor:

Anthony

Pink,

Shorewood,

Minn.

[73]

Assignee:

The

Toro

Company,

Minneapolis,

Minn.

[*]

Notice:

The

term

this

patent

shall

not

extend

beyond

the

expiration

date

Pat.

No.

D369,364.

[21]

Appl.

No.:

193,368

[22]

Filed:

Feb.

1994

US.

Application

Data

[63]

Continuation-impart

Ser.

No.

11,342,

Aug.

1993,

Pat.

No.

Des.

369,364.

[51] Int.

Cl.6

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

A01D

50/00

[52]

US.

Cl.

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

30/276;

30/347;

56/127;

243/52;

16/114

[58]

Field

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

30/276,347;

D8/8;

DIS/16;

24/129

16/114

248/52;

56/127,

295

[56]

References

Cited

U.S.

PATENT

DOCUMENTS

305,198

12/1989

White

al.

333,825

3/1993

Price

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

DIS/133

2,795,095

6/1957

Kaufman

D8/8

4,047,299

9/1977 Bair

.......

30/276

4,578,863

4/1986

Laverick

30/276

4,858,271

8/1989

Ber?eld

a1.

4,860,451

8/1989

Pilatowicz

et'

a1.

5,318,158

6/1994

Seasholtz

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

248/52

5,330,138

7/1994

Schlessmann

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

248/52

OTHER

PUBLICATIONS

Black

Decker

Instruction

Manual,

Bump

Feed

Yard

Trimmers

Models

82314,

82316,

dated

1989.

Paramount

Owner’s

Manual,

Weed

Grass

Trimmer,

Mod

els

PT140,

PI‘162,

dated

1989.

Sears

Operator’s

Manual,

Electric

Trimmer,

dated

Jan.

26,

1993.

Ikra

Trimmer

Brochure,

Models

2004,

6007,

7001,

dated

1991.

Photographs

showing

lkra

8007

Trimmer,

undated.

Toro

Owner’s

Manual

for the

1410 Trimmer,

dated

1989.

Paramount

Power

Grooming

Tools

Brochure,

dated

1988.

K&S

Owner’s

Manual

for

Electric

Grass

Trimmers,

dated

1984.

Primary

Examiner-Rinaldi

Rada

Assistant

Examiner—Elizabeth

Stanley

Attorney,

Agent,

Firm—James

Miller

[57]

ABSTRACT

?lament

trimmer

comprises

lower

housing,

upper

handle

and

single

handle

tube

connecting

the

two

together

fonn

completed

trimmer.

The

handle

tube has approxi

mately

the

same

length

the length

the

lower

housing,

and

the

upper

handle has

approximately

the

same

width

the

lower

housing,

allow

the

three-part

construction

the

trimmer

packaged

box

minimum

size.

The

upper

end

the

lower

housing

has

S-shaped

cord

channel,

with

adjacent

open

chamber

space next

and

below

the

cord

channel,

such

that

the

electrical

cord

passing

down

wardly

into‘

the

lower

housing

from

the

handle

tube

will

naturally

form

downwardly

protruding

loop

that

easily

received

the

lower

housing

when

the

handle

tube

pushed

down

into

the

lower

housing

during

assembly.

Finally,

extension

cord lock

provided

the

upper

handle

comprising

opening

the

hand

grip

forming

members

the

handle

that

leads

into

the

hand

grip

space

along

with

integral

hook

that

molded

the

interior

the

hand

grip

space

being

integrally

formed

one

the

hand

grip

forming

members.

doubled

over

portion

the

extension

cord

pushed

through

the

opening

and

hooked

looped

over

the

hook

comprise

the

cord

lock.

Claims,

Drawing

Sheets

1 2 3 4 5 6 7 8 9 10

Résumé du contenu

Page 1 - 5,644,844

United States Patent 1191 Pink llllllllllllllIlllllllllilllllllllllllllllllll' | US005644844A 5,644,844 *Jul. 8, 1997 [11] Patent Number: [45] Da

Page 2

UNITED STATES PATENT AND TRADEMARK OFFICE CERTIFICATE OF CORRECTION PATENTNO_ ; U.S. Patent 5,644,844 DATED : July 8, 1997 INVENTOWS) 1 Anthony N. Pin

Page 3

5,644,844 US. Patent Jul. 8, 1997 Sheet 1 0f 3 FIEIZ

Page 4

5,644,844 US. Patent Jul. 8, 1997 Sheet 2 0f 3 W .HNIJN

Page 5

US. Patent Jul. 8, 1997 Sheet 3 0f 3 5,644,844

Page 6

5,644,844 1 FILAMENT TRIMMER CROSS REFERENCE TO RELATED APPLICATIONS This application is a continuation-in-part of the Design Patent Application Ser.

Page 7

5,644,844 3 housing and a lowermost point of the lower housing. The single handle tube has approximately the same length as the predetermined length o

Page 8

5,644,844 5 trimmer 2, as will be described in more detail hereafter. A plurality of attachment screws 40 pass inwardly through lower housing 4 and up

Page 9

5,644,844 7 as part of the molding process used to form upper handle 6. As such it can be provided at no additional cost and is quite durable and reli

Page 10 - CORRECTION

5,644,844 9 opening to allow a loop formed by a doubled over portion of the extension cord to be hooked and retained thereon with the extension cord h