US3734262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typebar guide and repulser device
Assignee: SCM Corp
•
Filing: 1971-05-05
•
Granted: 1973-05-22
•
Expires: 1991-05-05
Abstract
Abstract A typebar guide and repulser device is disclosed comprising a cantilevered leaf spring and two spaced guide dogs having opposing surfaces mounted adjacent the cantilevered leaf spring. Means are also disclosed for converging the two opposing guide dog surfaces towards one another upon depression of the cantilevered leaf spring.
Inventors
- 👤 P Doll
- 👤 S Cappotto
- 👤 H Diamond
- 👤 E Lohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:58
CPC Classifications
B; B41; B41J; B41J25/00; B41J25/22
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
132 words
A typebar guide and repulser device comprising: two spaced guide dogs having opposing surfaces; means supporting said spaced guide dogs for movement from an ineffective position in which said opposed surfaces are at a predetermined distance from each other to a converged position having said opposing surfaces spaced a distance less than said predetermined distance from each other for guiding and positioning a typebar; and a cantilevered leaf spring engaging each of said two spaced guide dogs in a positive two direction driving relationship, said cantilevered leaf spring moving said spaced guide dogs in one direction from said ineffective position to said converged position upon depression of said cantilevered leaf spring and returning said spaced guide dogs in a second direction to said ineffective position upon release of said cantilevered leaf spring.
Claim 2
Dependent Claim
132 words
A typebar guide and repulser device comprising: two spaced guide dogs having opposing surfaces; means supporting said spaced guide dogs for movement from an ineffective position in which said opposed surfaces are at a predetermined distance from each other to a converged position having said opposing surfaces spaced a distance less than said predetermined distance from each other for guiding and positioning a typebar; and a cantilevered leaf spring engaging each of said two spaced guide dogs in a positive two direction driving relationship, said cantilevered leaf spring moving said spaced guide dogs in one direction from said ineffective position to said converged position upon depression of said cantilevered leaf spring and returning said spaced guide dogs in a second direction to said ineffective position upon release of said cantilevered leaf spring.
Claim 3
Dependent Claim
31 words
A typebar guide and repulser device in accordance with claim 1 wherein said supporting means includes means pivotably mounting each of said two spaced guide dogs to said cantilevered leaf spring.
Claim 4
Dependent Claim
38 words
A typebar guide and repulser device in accordance with claim 2 wherein said supporting means includes bifurcated guide dog retention means, and wherein a portion of said pivotably mounted guide dogs is disposed within said bifurcated retention means.
Claim 5
Dependent Claim
25 words
A typebar guide and repulser device in accordance with claim 1 wherein said two spaced guide dogs are pivotally mounted adjacent said cantilevered leaf spring.
Claim 6
Dependent Claim
31 words
A typebar guide and repulser device in accordance with claim 4 wherein each of said two spaced guide dog opposing surfaces are indented to define two opposing guide dog surface indentations.
Claim 7
Independent Claim
144 words
A device for guiding and repulsing a typebar traveling within a typebar flight path towards a typewriter platen for printing, said device comprising: two spaced guide dogs having opposing surfaces; means supporting said spaced guide dogs for moving said opposing surfaces from an ineffective position outside said typebar flight path to a converged position within said typebar flight path; and a cantilevered leaf spring engaging each of said two spaced guide dogs in a positive two direction driving relationship and positioned in said typebar flight path for movement in a first direction by a traveling typebar to move said opposing surfaces to said converged position and thereby guiding the traveling typebar to the platen, said cantilevered leaf spring operable when moving in a second drection for returning said opposing surfaces to said ineffective position and repulsing the typebar away from the platen after printing.
Claim 8
Independent Claim
144 words
A device for guiding and repulsing a typebar traveling within a typebar flight path towards a typewriter platen for printing, said device comprising: two spaced guide dogs having opposing surfaces; means supporting said spaced guide dogs for moving said opposing surfaces from an ineffective position outside said typebar flight path to a converged position within said typebar flight path; and a cantilevered leaf spring engaging each of said two spaced guide dogs in a positive two direction driving relationship and positioned in said typebar flight path for movement in a first direction by a traveling typebar to move said opposing surfaces to said converged position and thereby guiding the traveling typebar to the platen, said cantilevered leaf spring operable when moving in a second drection for returning said opposing surfaces to said ineffective position and repulsing the typebar away from the platen after printing.
Claim 9
Dependent Claim
46 words
A device for guiding and repulsing a typebar in accordance with claim 6 wherein said spaced guide dogs are each indented to define two opposing guide dog indentations, and wherein a portion of said cantilevered leaf spring is disposed within said two opposing guide dog indentations.
Claim 10
Dependent Claim
134 words
A typebar guide and repulser device comprising: two resilient spaced guide dogs being biased in a direction away from each other and being biased toward an ineffective position; means guiding said spaced guide dogs from said ineffective position where said spaced guide dogs arE at a predetermined distance from each other to a converged position where said spaced guide dogs are spaced a distance less than said predetermined distance from each other for guiding and positioning a typebar; and a cantilevered leaf spring for moving said spaced guide dogs in one direction from said ineffective position to said converged position upon depression of said cantilevered spring and for allowing said spaced guide dogs to move in a second direction from said converged position to said ineffective position upon release of said cantilevered leaf spring.
Claim 11
Dependent Claim
134 words
A typebar guide and repulser device comprising: two resilient spaced guide dogs being biased in a direction away from each other and being biased toward an ineffective position; means guiding said spaced guide dogs from said ineffective position where said spaced guide dogs arE at a predetermined distance from each other to a converged position where said spaced guide dogs are spaced a distance less than said predetermined distance from each other for guiding and positioning a typebar; and a cantilevered leaf spring for moving said spaced guide dogs in one direction from said ineffective position to said converged position upon depression of said cantilevered spring and for allowing said spaced guide dogs to move in a second direction from said converged position to said ineffective position upon release of said cantilevered leaf spring.
References Cited (Backward Citations)
US441654A
Cited
US550990A
Cited
CH33461A
Cited
US900931A
Cited
US1064674A
Cited
DE573913C
Cited
US1969411A
Cited
US3190427A
Cited
US3645374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |