US3710664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch, brake and knife arrangement for copying machine
Assignee: Individual
•
Filing: 1970-11-12
•
Granted: 1973-01-16
•
Expires: 1990-11-12
Abstract
Abstract A clutch, brake and knife arrangement for the copy paper transport system of a copying machine. A link in the knife assembly is attached to a brake band wrapped around a brake drum fixed to an end of a copy paper feed roller. A clutch is provided to couple the roller to a drive chain. During copy paper feed, the clutch is energized and a knife solenoid is de-energized. The brake band sits loosely around the brake drum and thus exerts no braking force on the copy paper feed roller. When the copy paper is to be cut, the knife solenoid is actuated and the clutch is de-energized. As the knife rotates to cut the copy paper, the brake band attached to the link in the knife assembly is tightened around the brake drum of the copy paper feed roller. This causes the roller to come to an abrupt halt before the cut is made.
Inventors
- 👤 J Eveland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:22
CPC Classifications
B; B65; B65H; B65H35/00; B65H35/04; B65H35/06; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/4443; Y10T83/4448; Y10T83/4501; Y10T83/4513; Y10T83/869; Y10T83/8798; Y10T83/8817
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
214 words
A clutch, brake and knife assembly for cutting a sheet of paper from a roll and braking paper feed from the roll comprising feed roller means for feeding paper from said roll, drive means, clutch means energizable for clutching said feed roller means to said drive means and de-energizable for releasing said feed roller means froM said drive means, knife means for cutting a sheet of paper from said roll and normally disengaged from paper passed adjacent thereto, means for energizing said knife means to cut a sheet of paper from said roll, means for braking said feed roller means, means for operating said braking means to halt said feed roller means and simultaneously operating said knife energizing means to cut a sheet of paper from said roll, and means for controlling the simultaneous operation of said knife energizing means and the de-energization of said clutch means, said braking means including a brake drum attached to said feed roller means, anchoring means, and a brake band, one end of said brake band being coupled to said anchoring means and the other end of said brake band being coupled to said knife means for moving with said knife means to tighten the brake band around said brake drum when said knife energizing means is operated.
Claim 2
Dependent Claim
214 words
A clutch, brake and knife assembly for cutting a sheet of paper from a roll and braking paper feed from the roll comprising feed roller means for feeding paper from said roll, drive means, clutch means energizable for clutching said feed roller means to said drive means and de-energizable for releasing said feed roller means froM said drive means, knife means for cutting a sheet of paper from said roll and normally disengaged from paper passed adjacent thereto, means for energizing said knife means to cut a sheet of paper from said roll, means for braking said feed roller means, means for operating said braking means to halt said feed roller means and simultaneously operating said knife energizing means to cut a sheet of paper from said roll, and means for controlling the simultaneous operation of said knife energizing means and the de-energization of said clutch means, said braking means including a brake drum attached to said feed roller means, anchoring means, and a brake band, one end of said brake band being coupled to said anchoring means and the other end of said brake band being coupled to said knife means for moving with said knife means to tighten the brake band around said brake drum when said knife energizing means is operated.
Claim 3
Dependent Claim
50 words
A clutch, brake and knife assembly in accordance with claim 1 wherein said knife means includes a knife blade and link means for moving said knife blade responsive to the operation of said knife energizing actuating means, said other end of said brake band being coupled to said link means.
Claim 4
Dependent Claim
54 words
A clutch, brake and knife assembly in accordance with claim 2 further including spring means connected at one end to one end of said brake band, with the other end of said spring means and the other end of said brake band being coupled to said anchoring means and to said link means respectively.
Claim 5
Dependent Claim
48 words
A clutch, brake and knife assembly in accordance with claim 3 wherein said brake band is dimensioned such that upon operation of said knife energizing means the tension developed in said brake band is sufficient to halt said feed roller means before said knife means cuts said paper.
Claim 6
Dependent Claim
42 words
A clutch, brake and knife assembly in accordance with claim 1 wherein said braking means includes means coupled between said feed roller means and said knife means for moving and braking said feed roller means responsive to movement of said knife means.
Claim 7
Dependent Claim
36 words
A clutch, brake and knife assembly in accordance with claim 5 wherein said braking means is operative to halt movement of said feed roller means prior to the cutting of said paper by said knife means.
Claim 8
Dependent Claim
101 words
An assembly for cutting a sheet of paper from a roll and braking paper feed from the roll comprising feed roller means for feeding paper from said roll, means for driving said feed roller means upon energization and not driving said feed roller means upon de-energization, knife means for cutting a sheet of paper from said roll and normally disengaged from paper passed adjacent thereto, normally inoperative means for braking said feed roller means, and means for operating said braking means to brake said feed roller means and said knife means to cut a sheet of paper from said roll simultaneously.
Claim 9
Dependent Claim
101 words
An assembly for cutting a sheet of paper from a roll and braking paper feed from the roll comprising feed roller means for feeding paper from said roll, means for driving said feed roller means upon energization and not driving said feed roller means upon de-energization, knife means for cutting a sheet of paper from said roll and normally disengaged from paper passed adjacent thereto, normally inoperative means for braking said feed roller means, and means for operating said braking means to brake said feed roller means and said knife means to cut a sheet of paper from said roll simultaneously.
Claim 10
Dependent Claim
27 words
An assembly in accordance with claim 7 further including means for controlling the simultaneous operation of of said knife means and the de-energization of said driving means.
Claim 11
Dependent Claim
74 words
An assembly in accordance with claim 8 wherein said braking means includes a brake drum attached to said feed roller means, anchoring means, and a brake band, one end of said brake band being coupled to said anchoring means and the other end of said brake band being coupled to said knife means for moving with said knife means to tighten the brake band around said brake drum when said knife means is operated.
Claim 12
Dependent Claim
44 words
As assembly in accordance with claim 9 wherein said knife means includes a knife blade and link means for moving said knife blade responsive to the operation of said operating means, said other end of said brake band being coupled to said link means.
Claim 13
Dependent Claim
50 words
An assembly in accordance with claim 10 further including spring means connected at one end to one end of said brake band, with the other end of said spring means and the other end of said brake band being coupled to said anchoring means and tO said link means respectively.
Claim 14
Dependent Claim
43 words
An assembly in accordance with claim 11 wherein said brake band is dimensioned such that upon operation of said knife means the tension developed in said brake band is sufficient to halt said feed roller means before said knife means cuts said paper.
Claim 15
Dependent Claim
38 words
An assembly in accordance with claim 8 wherein said braking means includes means coupled between said feed roller means and said knife means for moving and braking said feed roller means responsive to movement of said knife means.
Claim 16
Dependent Claim
32 words
An assembly in accordance with claim 13 wherein said braking means is operative to halt movement of said feed roller means prior to the cutting of said paper by said knife means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |