[특허]Combination polycrystalline diamond bit and bit holder

[미국특허] Combination polycrystalline diamond bit and bit holder 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21C-035/18 B28D-001/18 E21C-035/183 E02F-009/28 E02F-005/14
출원번호	US-0220569 (2016-07-27)
등록번호	US-10105870 (2018-10-23)
발명자 / 주소	Sollami, Phillip
출원인 / 주소	The Sollami Company
대리인 / 주소	O'Connor, Mercedes V.
인용정보	피인용 횟수 : 0 인용 특허 : 144

초록 ▼

A combination bit and bit holder assembly includes a bit holder having a forward body portion and a shank. The forward body portion includes an upper end and a lower end. An insert is mounted in the bore of the upper end of the body portion. The insert also includes a central bore that receivingly retains a receiving cup. The receiving cup includes a bottom portion and an annular flange that extends from the bottom portion and defines a hollow forward portion. A bit is mounted in the hollow forward portion of the receiving cup which is configured to have a ductility that provides impact absorption to the bit.

대표청구항 ▼

1. A combination bit and bit holder for road milling machinery comprising: a shank comprising an elongate generally cylindrical member having an annular groove extending axially inwardly from a distal end of the bit holder, wherein the annular groove defines an interior surface of an annular outer sidewall between approximately ⅛ and ½ inch in thickness;an enlarged diameter body extending forwardly of the shank, wherein the body is configured to receive a bit;an insert mounted in a forward end of the body of the bit holder;a receiving cup mounted in the insert; anda bit comprising a polycrystalline diamond (PCD) coated bit tip, the bit mounted in the receiving cup, wherein the receiving cup is configured to have a ductility that provides impact absorption to the bit. 2. The combination bit and bit holder of claim 1, wherein the receiving cup is a steel cup comprising a thick bottom portion and an annular flange extending upwardly from a circumference of the thick bottom portion, the annular flange defining a hollow forward portion of the receiving cup configured to receive the bit. 3. The combination bit and bit holder of claim 1, wherein the receiving cup is a steel cup comprising a thin bottom portion and an annular flange extending upwardly from a circumference of the thin bottom portion, the annular flange defining a hollow forward portion of the receiving cup configured to receive the bit. 4. The combination bit and bit holder of claim 1, wherein the PCD coated bit tip comprises one of a generally cylindrical flat topped shape and a generally cylindrical conical topped shape. 5. The combination bit and bit holder of claim 1, further comprising: at least one axially oriented elongate slot extending longitudinally on the annular outer sidewall from the distal end of the bit holder. 6. A bit/bit holder for road milling machinery comprising: a body of rounded shape having an upper end and a lower end, wherein the upper end is diametrically smaller than the lower end, and wherein a substantial portion of the body is solid;a generally cylindrical shank extending from the lower end of the body, wherein the shank is hollow and includes at least one axially oriented elongate slot through a sidewall of the shank;a bore axially extending through the upper end of the body, the bore including an annular declining taper sidewall;an insert having a central cylindrical bore extending axially inwardly from a top of the insert and a complementary declining taper sidewall for matingly fitting in the annular declining taper sidewall of the bore of the upper end, wherein the top of the insert extends outwardly from the bore of the upper end, and wherein the insert is retained within the bore of the upper end to form a unitary structure with the body;a receiving cup mounted in the central cylindrical bore of the insert; anda bit having a polycrystalline diamond (PCD) coated distal tip, wherein the bit is mounted in the receiving cup. 7. The bit/bit holder of claim 6, wherein the bit includes one of a flat top surface and a generally conical top surface. 8. The bit/bit holder of claim 6, wherein the receiving cup is a steel cup comprising a thick bottom portion and an annular flange extending upwardly from a circumference of the thick bottom portion, the annular flange defining a hollow forward portion of the receiving cup configured to receive the bit. 9. The bit/bit holder of claim 6, wherein the receiving cup is a steel cup comprising a thin bottom portion and an annular flange extending upwardly from a circumference of the thin bottom portion, the annular flange defining a hollow forward portion of the receiving cup configured to receive the bit. 10. The bit/bit holder as defined in claim 6, wherein the at least one axially oriented elongate slot axially extends from a distal end of the shank. 11. The bit/bit holder of claim 6, wherein the insert includes an annular tungsten carbide ring surrounding the central cylindrical bore. 12. The bit/bit holder of claim 11, wherein the insert is made of steel having a ductility configured to provide an impact absorbing member adjacent to the PCD coated distal tip. 13. The bit/bit holder of claim 6, wherein the upper end of the body further comprises an annular generally frustoconical tungsten carbide ring surrounding the outside of the upper end.

이 특허에 인용된 특허 (144) 인용/피인용 타임라인 분석

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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[미국특허] Combination polycrystalline diamond bit and bit holder 원문보기

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[미국특허] Combination polycrystalline diamond bit and bit holder 원문보기

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