[특허]Guard attachment system with knurled clamp ring

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B24B-055/04
출원번호	US-0608379 (2000-06-30)
발명자 / 주소	David V. Keller
출원인 / 주소	Porter-Cable Corporation
대리인 / 주소	Merchant & Gould P.C.
인용정보	피인용 횟수 : 35 인용 특허 : 55

초록 ▼

A removable guard for a hand-held power tool. The guard is configured to cover an area proximate a spindle assembly of the tool between the spindle assembly and a user of the tool. The guard is further configured to be securely mounted to a semi-elastic lower bearing housing supporting the spindle a

A removable guard for a hand-held power tool. The guard is configured to cover an area proximate a spindle assembly of the tool between the spindle assembly and a user of the tool. The guard is further configured to be securely mounted to a semi-elastic lower bearing housing supporting the spindle assembly of the tool. The guard, when mounted to the semi-elastic lower bearing housing of the tool, and when in use during operation of the tool, must remain functional under conditions of flying debris, such as under conditions of an exploding, rotating abrasive grinding wheel mounted on the spindle assembly of the tool.The guard includes a clamp ring depending from a guard hood. The clamp ring's inner circumferential portion has at least a partially-knurled surface, whereby when securely tightened around the semi-elastic lower bearing housing, the at least partially-knurled surface of the clamp ring inner circumferential portion compresses into the semi-elastic lower bearing housing to securely mount the guard to the tool.

대표청구항 ▼

1. A removable power tool guard configured to cover an area proximate a spindle assembly of a power tool between a spindle assembly and a user of the tool, the guard further being configured to be securely mounted to a semi-elastic lower bearing housing supporting the spindle assembly of the power t

1. A removable power tool guard configured to cover an area proximate a spindle assembly of a power tool between a spindle assembly and a user of the tool, the guard further being configured to be securely mounted to a semi-elastic lower bearing housing supporting the spindle assembly of the power tool, wherein the guard, when mounted to the lower bearing housing, and when in use during operation of the tool, must remain in place even under conditions of flying debris, such as under conditions of an exploding, rotating abrasive grinder wheel mounted on the lower bearing housing of the tool, the guard comprising:a guard hood configured to cover an area proximate the spindle assembly between the spindle assembly and the user of the tool; a clamp ring mechanically coupled to the guard hood; the clamp ring depending from the guard hood; the clamp ring having an inner circumferential portion; the clamp ring being configured so that the inner circumferential portion at least partially surrounds, and can be secured tightly around, at least a portion of the semi-elastic lower bearing housing; the clamp ring being configured so that at least a portion of the semi-elastic lower bearing housing can pass essentially concentrically through the clamp ring; the inner circumferential portion of the clamp ring defining at least a partially-knurled surface; and whereby, when securely tightened around the semi-elastic lower bearing housing, the at least partially-knurled surface of the clamp ring inner circumferential portion compresses into the semi-elastic lower bearing housing to securely mount the guard member to the tool.

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이 특허에 인용된 특허 (55) 인용/피인용 타임라인 분석

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Jacobsson Rolf A. (Saltsj-Boo SEX), Pneumatic rotation grinder.
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Huang Kan-Chi (No. 3 ; Alley 3 ; Lane 1512 ; Chung Shan Road Tao Yuan TWX), Pneumatically operated debris-removable grinding tool.
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Brown Geoffrey P. (1923 West 41st Avenue Vancouver ; British Columbia CAX V6M 1Y5 ), Pole mounted vacuum sander.
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Stucker Robert G. (Sunman IN), Simplified safety guard for a cloth cutting machine.
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Marton Miksa (R.R. No. 1 Old Castle Windsor ; Ontario CA), Vacuum sander.
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Holmin Mats C. (Stockholm SEX) Olsson Sten H. (Enskede SEX) Skogsberg Lars T. (Stenhamra SEX), Vibration damped hand held rotary grinding machine.
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Jacobsson Rolf A. (Saltsj-Boo SEX), Vibration damped hand held rotary grinding machine.
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이 특허를 인용한 특허 (35) 인용/피인용 타임라인 분석

Cooksey, Charles K.; Richards, Daryl S., Adjustable guard for power tool.
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Nakamura, Shin; Mukoyama, Kenji, Disc grinders.
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Schmidberger Brinek, Susanne; Schur, Norbert, Electric hand tool--in particular an angle sander/grinder.
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Wiker,Juergen, Electric portable power tool with rotatable guard.
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Morris, Lane; Garza, David, Fully rotatable grinder guard assembly and method for making same.
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Amend, Ryan Scott; Albert, Gregory Paul; Pyles, Douglas Eliot; Young, Randi Jane, Grinding tools with guards.
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Boeck, Cornelius; Schadow, Joachim; Andrasic, Sinisa, Guard anti-rotation lock.
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Boeck, Cornelius; Schadow, Joachim; Andrasic, Sinisa, Guard anti-rotation lock.
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Boeck, Cornelius; Schadow, Joachim, Guard device.
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Boeck, Cornelius; Schadow, Joachim; Overbeck, Tobias; Vollmer, Rainer, Guard device.
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Esenwein, Florian, Guard for a hand-held power tool and hand-held power tool with a guard.
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Voigt, Mike; Kleider, Albert; Neef, Kurt, Guard for an electric machine tool, electric machine tool, and system comprising a guard and electric machine tool.
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Esenwein, Florian, Guard hood torsion preventer.
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Boeck, Cornelius; Schadow, Joachim; Andrasic, Sinisa; Enfellner, Josef; Habele, Michael, Hand-held power tool.
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Esenwein, Florian, Hand-held power tool for a rotating tool with guard.
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Booeshaghi, Farhad; Benedict, Charles E.; Corbett, Stephen R.; Yates, Christian A.; Vaghar, Mohammad R.; Campbell, Traci K., Pivotal guards for power hand tools with rotating discs.
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Wright, Stuart J., Power tool.
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Kelleher, Joseph P.; Copeland, Jr., Earnest N.; Schell, Craig A.; Trautner, Paul K., Shield assembly for a power tool.
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[미국특허] Guard attachment system with knurled clamp ring 원문보기

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[미국특허] Guard attachment system with knurled clamp ring 원문보기

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