[특허]Support bearing assembly

The Will-Burt Company

Support bearing assembly

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E04H-012/34 E04H-012/18 F16C-019/54
출원번호	US-0253457 (2005-10-19)
등록번호	US-8887450 (2014-11-18)
발명자 / 주소	Blackwelder, Paul Bradford
출원인 / 주소	The Will-Burt Company
대리인 / 주소	Fay Sharpe LLP
인용정보	피인용 횟수 : 0 인용 특허 : 34

초록 ▼

A rigid support bearing for a rotating shaft has bearings arranged concentrically around the shaft instead of spaced axially and is used in a screw drive telescoping mast assembly. An axial drive screw is centrally located in the mast assembly for extending and retracting the tubular sections. A lower bearing assembly supports the drive screw and uses the concentric bearing arrangement to reduce the nested height of the mast.

대표청구항 ▼

1. A telescoping mast assembly, comprising: at least two elongate tubular sections, wherein a second elongate tubular section is telescopically received by a first elongate tubular section;a rotating shaft centrally located in said mast assembly for extending and retracting said second elongate tubular section; and,a lower support assembly configured for supporting a lower portion of said rotating shaft, said lower support comprises a first inner bearing assembly and a second outer bearing assembly arranged horizontally and concentrically about said rotating shaft; wherein said first inner bearing assembly comprises a ball bearing housing comprising ball bearings which is positioned within a substantially concave opening of a ball bearing housing comprising ball bearings of said second outer bearing assembly and said first inner bearing assembly is positioned within said second outer bearing assembly; such that said second outer bearing assembly housing comprises a single portion that both surrounds and covers adjacent to at least upper and side ends of said first inner bearing assembly housing and wherein said second outer bearing assembly is concentric with said first inner bearing assembly and said second outer bearing assembly is positioned radially outwardly from said first bearing assembly in a horizontal direction wherein said ball bearings of said inner bearing assembly all lie in a first horizontal plane extending through of a centerline of said ball bearings of said inner bearing assembly located above a second horizontal plane extending through a centerline of said ball bearings of said outer bearing assembly, wherein said ball bearings of said outer bearing assembly all lie in said second horizontal plane and wherein said second outer bearing assembly housing and said first inner bearing assembly housing do not move in a longitudinal direction along a longitudinal axis of said rotating shaft. 2. The telescoping mast assembly of claim 1, wherein said second elongate tubular section comprises a bottom member extending between opposite ends of said second elongate tubular section, said bottom member comprises an opening for receiving said rotating shaft. 3. The telescoping mast assembly of claim 2, wherein said bottom member comprises a threaded nut mounted in said opening, wherein said threaded nut is threadably engaged by a threaded portion of said rotating shaft. 4. The telescoping mast assembly of claim 1, further comprising a drive assembly for rotating said rotating shaft. 5. The telescoping mast assembly of claim 1, wherein said rotating shaft comprises an elongate member with threads. 6. The telescoping mast assembly of claim 5, wherein said rotating shaft comprises an upper, threaded portion, an intermediate, unthreaded portion, and a lower, threaded portion. 7. The telescoping mast assembly of claim 1, wherein said lower support assembly comprises a hug nut positioned adjacent an inner ball bearing assembly of said first inner bearing assembly and surrounding a lower portion of said rotating shaft. 8. The telescoping mast assembly of claim 7, wherein said inner ball bearing assembly is retained at a lower end by said hug nut and at an upper end by said first inner bearing assembly. 9. The telescoping mast assembly of claim 1, further comprising an outer ball bearing assembly retained on an upper end by said second outer bearing assembly and at a lower end by a bearing assembly base. 10. The telescoping mast assembly of claim 9, wherein said rotating shaft is connected to said second bearing outer assembly through said outer ball bearing assembly. 11. The telescoping mast assembly of claim 1, wherein said rotating shaft comprises a drive screw. 12. The telescoping mast assembly of claim 11, wherein torque is supplied to said drive screw to operate the mast via a drive assembly.

이 특허에 인용된 특허 (34)

Nakamura Kenichiro,JPX ; Mitsuyama Toshio,JPX ; Noguchi Takashi,JPX, Anti-rotation mechanism in a screw type linear actuator.
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Clement A. J. F. (McFarland CA), Azimuth array of rotory antennas with selectable lobe patterns.
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Weyer Paul P. (48811 128th Ave. Southeast Enumclaw WA 98022), Ball screw actuator.
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Nashiki Masayuki,JPX ; Ohtake Yoshiki,JPX, Bearing structure for a rotating shaft.
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Beauchet Jean (Annecy FR), Concentric antifriction bearing assembly.
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Friedl, Wolfgang; Satha, Julie, Double-row antifriction bearing.
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Christensen, Jerry A., Extendable mast arrangement having a coded remote control system.
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Roth Gunter (Muelheim (Ruhr) DT), Extensible rod.
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Parlanti Conrad A. (7182 Rasmussen Ave. Visalia CA 93277), Guyline tension device for communication towers.
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Fickler Hans (Wiesendangen CHX), Linear drive device with two motors.
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Hulse John A., Low profile lift mounting arrangement for telescoping mast.
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Pary James ; Hallack Michael L. ; Beach Chuck ; Stiebel Ariel, Method and apparatus for electrical resistance spot welding.
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Lange, David A.; Zimmerman, Sid M., Multiple stage, multiple extend, speed reducing ball screw linear actuator and method of constructing and operating the actuator.
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Legare, David J., Nested extension/retraction structure and method of fabrication.
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Oveyssi, Kamran, Pivot bearing cartridge having inner and outer ball bearing sets.
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Blackwelder, Paul B., Pneumatic telescoping mast.
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Featherstone Harry E. (Wooster OH) Donahue Dennis B. (Wooster OH), Pneumatic telescoping mast.
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Hulse John A. ; Stearns John C., Pneumatically telescoping mast.
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Hulse John A. ; Stearns John C., Pneumatically telescoping mast.
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Hulse John A., Pneumatically telescoping mast having DC operated lighting and pivoting means.
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Featherstone Harry E. (Wooster OH), Rigid drive assembly.
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Babinski James A., Telescopic ball nut and screw linear actuator and method of constucting and using it.
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Sauter Josef (Oberteuringen DEX), Telescopic device with unambiguous sequence of deployment and retraction.
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Petrovsky Peter (Konstanz DEX), Telescoping device.
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Featherstone Harry E. (Wooster OH), Telescoping mast assembly.
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Featherstone Harry E. (Wooster OH), Telescoping mast assembly.
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Featherstone Harry E. ; Finnell John W., Telescoping mast assembly.
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Featherstone, Harry E., Telescoping mast assembly.
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Lehnert Heidi E. (Doylestown OH), Telescoping mast assembly.
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Lehnert Heidi E. (Doylestown OH), Telescoping mast assembly.
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Adams Daniel S. (Visalia CA) Butler Gene R. (Kingsburg CA) Pereira Kenneth J. (Hanford CA), Telescoping mast with improved holddown-locking mechanism.
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Adams Daniel S. (Visalia CA) Butler Gene R. (Kingsburg CA) Pereira Kenneth J. (Hanford CA), Telescoping mast with improved holddown-locking mechanism.
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Edward A. Marue ; Kenneth J. Pereira, Telescoping mast with integral payload.
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Marue Edward A. (Tuscon AZ) Pereira Kenneth J. (Hanford CA), Telescoping mast with integral payload.
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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

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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연합인증

Support bearing assembly

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연합인증

Support bearing assembly

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연구과제 타임라인

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