EP0028873A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Ribbon supply tensioning means and printing machine therewith
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1980-07-25
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Granted: —
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Expires: 2000-07-25
Abstract
Abstract A ribbon supply means, preferably a ribbon cartridge (28), is provided with tensioning means such as a resilient pad (95) mounted between anchoring means, for example the wall of the ribbon cartridge (28), and an incrementally driven ribbon capstan (70) for urging the ribbon (20) into good frictional contact with a frictional surface on the capstan (70) for wiping the ribbon (20) clean and damping the motion of the ribbon (20) as it is driven forward. The ribbon supply means is suitable for use with printing machines, for example electronic typewriters.
Inventors
- 👤 Michael Joseph Rello
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 13:24
CPC Classifications
B; B41; B41J; B41J35/00; B41J35/04; B41J35/08; B41J33/00; B41J33/14; B41J33/52
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
75 words
Ribbon supply means in which, in operation, ribbon (20) is impelled to a point of use by means of a capstan (70) in frictional engagement with said ribbon, characterized in that a resilient foam pad (95) is provided for urging said ribbon (20) into engagement with a frictional surface on said capstan (70), so that, in operation, the motion of said ribbon (20) is damped by the force exerted thereon by said foam pad (95).
Claim 2
Dependent Claim
75 words
Ribbon supply means in which, in operation, ribbon (20) is impelled to a point of use by means of a capstan (70) in frictional engagement with said ribbon, characterized in that a resilient foam pad (95) is provided for urging said ribbon (20) into engagement with a frictional surface on said capstan (70), so that, in operation, the motion of said ribbon (20) is damped by the force exerted thereon by said foam pad (95).
Claim 3
Dependent Claim
20 words
Ribbon supply means as claimed in claim 1, characterized in that said ribbon (20) is stored in a cartridge (28).
Claim 4
Dependent Claim
20 words
Ribbon supply means as claimed in claim 2, characterized in that said capstan (70) is mounted with said cartridge (28).
Claim 5
Dependent Claim
98 words
Ribbon supply means comprising a supply of ribbon (20) and a capstan (70) for driving said ribbon in response to force applied to said capstan, characterized in that a foam pad (95) is provided for urging said ribbon into engagement with said capstan (70); whereby, in operation, relative motion of said ribbon (20) with respect to said capstan (70) is limited, said ribbon (20) is wiped by said foam pad (95) and the frictional force available between said capstan (70) and said ribbon (20) is increased by the force exerted on said ribbon by said foam pad (95).
Claim 6
Dependent Claim
98 words
Ribbon supply means comprising a supply of ribbon (20) and a capstan (70) for driving said ribbon in response to force applied to said capstan, characterized in that a foam pad (95) is provided for urging said ribbon into engagement with said capstan (70); whereby, in operation, relative motion of said ribbon (20) with respect to said capstan (70) is limited, said ribbon (20) is wiped by said foam pad (95) and the frictional force available between said capstan (70) and said ribbon (20) is increased by the force exerted on said ribbon by said foam pad (95).
Claim 7
Dependent Claim
26 words
Ribbon supply means as claimed in claim 4, characterized in that said ribbon (20) is disposed with its inked surface in contact with said pad (95).
Claim 8
Dependent Claim
23 words
Ribbon supply means as claimed in claim 5, characterized in that said foam pad (95) contacts said capstan (70) and said ribbon (20).
Claim 9
Dependent Claim
128 words
A printing machine having character element means (12) for being impacted into a ribbon (20) at a print location for producing a mark on a medium corresponding to a particular one of said character elements, the ribbon (20) being driven, in operation, to and from said.print location by means of frictional engagement between a driving capstan (70) and said ribbon (20); characterized in that a pad (95) of a resilient foam material is located between anchoring means and said ribbon at said capstan (70) such that, in operation of the machine, said foam pad (95) wipes a surface of said ribbon (20), urges said ribbon (20) into engagement with a frictional surface on said capstan-(70) and provides a damping action to limit the motion of said ribbon (20).
Claim 10
Dependent Claim
128 words
A printing machine having character element means (12) for being impacted into a ribbon (20) at a print location for producing a mark on a medium corresponding to a particular one of said character elements, the ribbon (20) being driven, in operation, to and from said.print location by means of frictional engagement between a driving capstan (70) and said ribbon (20); characterized in that a pad (95) of a resilient foam material is located between anchoring means and said ribbon at said capstan (70) such that, in operation of the machine, said foam pad (95) wipes a surface of said ribbon (20), urges said ribbon (20) into engagement with a frictional surface on said capstan-(70) and provides a damping action to limit the motion of said ribbon (20).
Claim 11
Dependent Claim
20 words
A printing machine as claimed in claim 7, characterized in that said ribbon (20) is stored in a cartridge (28).
Claim 12
Dependent Claim
23 words
A printing machine as claimed in claim 7 or claim 8, characterized in that said capstan (70) is mounted within said cartridge (28).
Claim 13
Dependent Claim
23 words
A printing machine as claimed in claim 8 or claim 9, characterized.in that said anchoring means comprises a wall of said cartridge (28)..
References Cited (Backward Citations)
No citation records indexed.
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