UST101801I4 - Apparatus and method for accurately setting a gap between mating surfaces on a copier magnetic brush drum and roller - Google Patents

Apparatus and method for accurately setting a gap between mating surfaces on a copier magnetic brush drum and roller Download PDF

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Publication number
UST101801I4
UST101801I4 US06/182,241 US18224180A UST101801I4 US T101801 I4 UST101801 I4 US T101801I4 US 18224180 A US18224180 A US 18224180A US T101801 I4 UST101801 I4 US T101801I4
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US
United States
Prior art keywords
gap
tool
roller
drum
mating surfaces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US06/182,241
Inventor
James E. Bierschbach
Raymond A. Daniels
Robert L. Fey
Ben A. Nilsson
Roberta R. Tanner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to US06/182,241 priority Critical patent/UST101801I4/en
Assigned to INTERNATIONAL BUSINESS MACHINES CORPORATION, A CORP. OF N. Y. reassignment INTERNATIONAL BUSINESS MACHINES CORPORATION, A CORP. OF N. Y. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BIERSCHBACH JAMES E., DANIELS RAYMOND A., FEY ROBERT L., NILSSON BEN A., TANNER ROBERTA R.
Application granted granted Critical
Publication of UST101801I4 publication Critical patent/UST101801I4/en
Pending legal-status Critical Current

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Abstract

An electrophotographic copier's magnetic brush roller applies developer material to the surface of a photoconductor drum. Two parallel centerlines define the photoconductor drum surface a fixed gap distance from the magnetic brush roller's mating surface. Moving the magnetic brush roller adjusts the gap distance between the mating surfaces. Two sandwiches of conventional, standard-thickness, flexible, plastic sheets form tools; one having a total thickness slighty larger than the desired gap between the mating surfaces of the drum and roller, and the other having a thickness slightly less than the desired gap. The desired gap is set by separating the drum and roller surfaces, inserting the tool that is slightly smaller than the gap and closing the gap sufficiently so that each of the mating surfaces on the drum and roller contacts one surface of the tool. The surfaces are then separated, the tool is withdrawn, and the second tool, which is slightly larger than the desired gap spacing, is inserted and the mating surfaces of the drum and roller are closed together until the second tool cannot be further inserted. The gap is accurately set when the first tool may be pushed into the gap, without buckling, but the second tool may not.
US06/182,241 1980-08-28 1980-08-28 Apparatus and method for accurately setting a gap between mating surfaces on a copier magnetic brush drum and roller Pending UST101801I4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/182,241 UST101801I4 (en) 1980-08-28 1980-08-28 Apparatus and method for accurately setting a gap between mating surfaces on a copier magnetic brush drum and roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/182,241 UST101801I4 (en) 1980-08-28 1980-08-28 Apparatus and method for accurately setting a gap between mating surfaces on a copier magnetic brush drum and roller

Publications (1)

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UST101801I4 true UST101801I4 (en) 1982-05-04

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US06/182,241 Pending UST101801I4 (en) 1980-08-28 1980-08-28 Apparatus and method for accurately setting a gap between mating surfaces on a copier magnetic brush drum and roller

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US (1) UST101801I4 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD973732S1 (en) * 2022-08-23 2022-12-27 Huimin Zou Rock tumbler
USD975147S1 (en) * 2021-12-08 2023-01-10 Yuan Zhao Rock tumbler
USD982626S1 (en) * 2021-08-11 2023-04-04 Idea Vault Holdings, Inc. Tumbler
USD1004644S1 (en) * 2022-08-30 2023-11-14 Yongxiu Liu Rock tumbler
USD1041242S1 (en) * 2022-04-04 2024-09-10 Chao Jing Weng Tumbler drum

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD982626S1 (en) * 2021-08-11 2023-04-04 Idea Vault Holdings, Inc. Tumbler
USD975147S1 (en) * 2021-12-08 2023-01-10 Yuan Zhao Rock tumbler
USD1041242S1 (en) * 2022-04-04 2024-09-10 Chao Jing Weng Tumbler drum
USD973732S1 (en) * 2022-08-23 2022-12-27 Huimin Zou Rock tumbler
USD1004644S1 (en) * 2022-08-30 2023-11-14 Yongxiu Liu Rock tumbler

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