US3673876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motion transforming device for producing a reciprocating motion
Assignee: Individual
•
Filing: 1970-09-21
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Granted: 1972-07-04
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Expires: 1990-09-21
Abstract
Abstract The catch sprocket is driven in an endless path by the upper chain of the double chain while the lower chain is driven about the two drive sprockets. When the motion direction is reversed, the catch sprocket is moved at a curved end of the endless chains from one guide slot to the other. The travel-to-time curve of the catch sprocket can be shaped in any suitable manner while the reversing time remains of short duration.
Inventors
- 👤 Friedbert R Rohner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:42
CPC Classifications
F; F16; F16H; F16H19/00; F16H19/02; F16H19/06; B; B65; B65H; B65H54/00; B65H54/02; B65H54/28; B65H54/2821; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18152
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
153 words
A motion transforming device for producing a reciprocating motion comprising a multiple chain having at least two chains; a pair of sprockets in meshing engagement with one of said chains for driving said chains; a catch sprocket having a plurality of teeth thereon, at least one of said teeth being in meshing engagement with a selective one of a pair of reaches of the other of said chains; guide means for guiding said catch sprocket in an endless path in selective meshing engagement with said reaches of said other chain, said catch sprocket being slidably received in said guide means and sized to mesh one of said teeth in an oppositely moving reach of said other chain while another of said teeth disengages from the other of said reaches; and a slider connected to said catch sprocket for reciprocating in a rectilinear path upon movement of said catch sprocket in said endless path.
Claim 2
Dependent Claim
153 words
A motion transforming device for producing a reciprocating motion comprising a multiple chain having at least two chains; a pair of sprockets in meshing engagement with one of said chains for driving said chains; a catch sprocket having a plurality of teeth thereon, at least one of said teeth being in meshing engagement with a selective one of a pair of reaches of the other of said chains; guide means for guiding said catch sprocket in an endless path in selective meshing engagement with said reaches of said other chain, said catch sprocket being slidably received in said guide means and sized to mesh one of said teeth in an oppositely moving reach of said other chain while another of said teeth disengages from the other of said reaches; and a slider connected to said catch sprocket for reciprocating in a rectilinear path upon movement of said catch sprocket in said endless path.
Claim 3
Dependent Claim
59 words
A motion transforming device as set forth in claim 1 wherein said guide means includes a guide plate having a pair of slots therein and said catch sprocket includes a first slide piece on one side thereof slidably received in a selective one of said slots for guiding of said catch sprocket therein during movement in said endless path.
Claim 4
Dependent Claim
70 words
A motion transforming device as set forth in claim 2 wherein said slider has a groove therein and said catch sprocket has a second slide piece slidably received in said groove to prevent rotation of said catch sprocket relative to said slider, said second slide piece being turned 90* with respect to said first slide piece to permit movement of said catch sprocket in two directions perpendicular to each other.
Claim 5
Dependent Claim
18 words
A motion transforming device as set forth in claim 2 wherein said slots are parallel to each other.
Claim 6
Dependent Claim
20 words
A motion transforming device as set forth in claim 2 wherein said slots are angled with respect to each other.
Claim 7
Dependent Claim
25 words
A motion transforming device as set forth in claim 2 wherein one of said slots has two portions disposed in angular relation to each other.
Claim 8
Dependent Claim
24 words
A motion transforming device as set forth in claim 1 which further comprises a fixed guide slidably receiving said slider therein for reciprocation therein.
Claim 9
Dependent Claim
16 words
A motion transforming device as set forth in claim 1 wherein said catch sprocket is circular.
Claim 10
Dependent Claim
27 words
A motion transforming device as set forth in claim 1 wherein said catch sprocket has a longitudinally elongated form to decrease the distance travelled by the slider.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |