Patent US4849795A successfully refreshed from Google Patents.
US4849795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet transport
Assignee: Xerox Corp
•
Filing: 1987-10-05
•
Granted: 1989-07-18
•
Expires: 2007-10-05
Abstract
Abstract An apparatus in which a sheet is advanced into registration with information developed on a moving member. Spaced belts having a sheet gripper secured thereto move the sheet in a recirculating path of movement. The belts move at a first velocity during registration of the sheet with the information on the moving member and at a second velocity during non-registration of the sheet with the information on the moving member.
Inventors
- 👤 Charles W. Spehrley, Jr.
- 👤 Robert R. Schaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:43
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/163; G03G15/1635; G03G15/165; G03G15/1655; G03G15/01; G03G15/0105; G03G15/0131; G03G15/65; G03G15/6555; G03G15/6558; G03G15/6561; G03G2215/00; G03G2215/00362; G03G2215/00367; G03G2215/00409; G03G2215/00535; G03G2215/00679
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
100 words
An apparatus for advancing a sheet into registration with information developed on a moving member, including: means for gripping the sheet; belt means defining a continuous path, said gripping means being secured to said belt means to move in unison therewith; and means for moving said belt means so as to move the sheet in a recirculating path of movement, said moving means moving said belt means at a first velocity during registration of the sheet with the information of the moving member and at a second velocity during non-registration of the sheet with the information on the moving member.
Claim 2
Independent Claim
100 words
An apparatus for advancing a sheet into registration with information developed on a moving member, including: means for gripping the sheet; belt means defining a continuous path, said gripping means being secured to said belt means to move in unison therewith; and means for moving said belt means so as to move the sheet in a recirculating path of movement, said moving means moving said belt means at a first velocity during registration of the sheet with the information of the moving member and at a second velocity during non-registration of the sheet with the information on the moving member.
Claim 3
Dependent Claim
21 words
An apparatus according to claim 1, further including means for transferring the developed information from the moving member to the sheet.
Claim 4
Dependent Claim
20 words
An apparatus according to claim 1, wherein the first velocity is substantially equal to the velocity of the moving member.
Claim 5
Dependent Claim
16 words
An apparatus according to claim 1, wherein the second velocity is greater than the first velocity.
Claim 6
Dependent Claim
23 words
An apparatus according to claim 1, wherein said moving means includes a plurality of spaced rolls with said belt means being entrained thereabout.
Claim 7
Dependent Claim
20 words
An apparatus according to claim 5, wherein said belt means includes two spaced belts entrained about said plurality of rolls.
Claim 8
Dependent Claim
51 words
An apparatus according to claim 6, wherein said gripping means includes: a gripping bar extending across said spaced belts substantially normal to the direction of movement of said spaced belts; and at least one normally closed magnetic clamp mounted on said gripping bar for securing the leading edge of the sheet.
Claim 9
Dependent Claim
38 words
An apparatus according to claim 7, further including magnetic means opening said clamp at a first position to receive the leading edge of the sheet and at a second position to release the leading edge of the sheet.
Claim 10
Dependent Claim
28 words
An apparatus according to claim 8, wherein said magnetic means includes: a first electromagnet located at the first position; and a second electromagnet located at the second position.
Claim 11
Dependent Claim
51 words
An apparatus according to claim 5, further including: means, disposed internally of the path of movement of the sheet, for supporting the sheet over at least a portion of the path of movement thereof; and means for reducing the air pressure internally of said supporting means to attract the sheet thereto.
Claim 12
Dependent Claim
36 words
An apparatus according to claim 5, further including means for moving at least a portion of the sheet closely adjacent the moving member during registration of the sheet with the information developed on the moving member.
Claim 13
Dependent Claim
41 words
An apparatus according to claim 5, further including at least one baffle, mounted externally of the path of movement of the sheet in the region of one of said plurality of rolls, to guide the sheet along the path of movement.
Claim 14
Dependent Claim
22 words
An apparatus according to claim 5, wherein said plurality of rolls includes three spaced rolls associated with each of said spaced belts.
Claim 15
Dependent Claim
22 words
An apparatus according to claim 5, wherein said plurality of rolls includes two spaced rolls associated with each of said spaced belts.
Claim 16
Dependent Claim
123 words
A printing machine of the type having a toner image developed on a latent electrostatic charge pattern recorded on a moving member with a sheet being advanced into registration with the toner image, including: means for gripping the sheet; belt means defining a continuous path, said gripping means being secured to said belt means to move in unison therewith; and means for moving said belt means so as to move the sheet in a recirculating path of movement wherein said moving means moves said belt means at a first velocity during registration of the sheet with the toner image developed on the moving member and at a second velocity during non-registration of the sheet with the toner image developed on the moving member.
Claim 17
Dependent Claim
123 words
A printing machine of the type having a toner image developed on a latent electrostatic charge pattern recorded on a moving member with a sheet being advanced into registration with the toner image, including: means for gripping the sheet; belt means defining a continuous path, said gripping means being secured to said belt means to move in unison therewith; and means for moving said belt means so as to move the sheet in a recirculating path of movement wherein said moving means moves said belt means at a first velocity during registration of the sheet with the toner image developed on the moving member and at a second velocity during non-registration of the sheet with the toner image developed on the moving member.
Claim 18
Dependent Claim
23 words
A printing machine according to claim 15, further including means for transferring the developed toner image from the moving member to the sheet.
Claim 19
Dependent Claim
31 words
A printing machine according to claim 16, wherein said transferring means transfers a plurality of different color toner images, in superimposed registration with one another, from the member to the sheet.
Claim 20
Dependent Claim
21 words
A printing machine according to claim 15, wherein the first velocity is substantially equal to the velocity of the moving member.
Claim 21
Dependent Claim
17 words
A printing machine according to claim 15, wherein the second velocity is greater than the first velocity.
Claim 22
Dependent Claim
24 words
A printing machine according to claim 15, wherein said moving means includes a plurality of spaced rolls with said belt means being entrained thereabout.
Claim 23
Dependent Claim
21 words
A printing machine according to claim 20, wherein said belt means includes two spaced belts entrained about said plurality of rolls.
Claim 24
Dependent Claim
52 words
A printing machine according to claim 21, wherein said gripping means includes: a gripping bar extending across said spaced belts substantially normal to the direction of movement of said spaced belts; and at least one normally closed magnetic clamp mounted on said gripping bar for securing the leading edge of the sheet.
Claim 25
Dependent Claim
39 words
A printing machine according to claim 22, further including magnetic means opening said clamp at a first position to receive the leading edge of the sheet and at a second position to release the leading edge of the sheet.
Claim 26
Dependent Claim
29 words
A printing machine according to claim 23, wherein said magnetic means includes: a first electromagnet located at the first position; and a second electromagnet located at the second position.
Claim 27
Dependent Claim
52 words
A printing machine according to claim 20, further including: means, disposed internally of the path of movement of the sheet, for supporting the sheet over at least a portion of the path of movement thereof; and means for reducing the air pressure internally of said supporting means to attract the sheet thereto.
Claim 28
Dependent Claim
38 words
A printing machine according to claim 20, further including means for moving at least a portion of the sheet closely adjacent the moving member during registration of the sheet with the toner image developed on the moving member.
Claim 29
Dependent Claim
42 words
A printing machine according to claim 20, further including at least one baffle, mounted externally of the path of movement of the sheet in the region of one of said plurality of rolls, to guide the sheet along the path of movement.
Claim 30
Dependent Claim
23 words
A printing machine according to claim 20, wherein said plurality of rolls includes three spaced rolls associated with each of said spaced belts.
Claim 31
Dependent Claim
23 words
A printing machine according to claim 20, wherein said plurality of rolls includes two spaced rolls associated with each of said spaced belts.
References Cited (Backward Citations)
US3179404A
Cited
US4081723A
Cited
US4210319A
Cited
US4326792A
Cited
US4331328A
Cited
US4568169A
Cited
US4436405A
Cited
US4552448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-17 | 1993-01-16 | 1993-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-17 | 1997-01-16 | 1997-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-17 | 2001-01-16 | 2001-07-18 | $7700.00 | Window Closed / Lapsed |