Patent US4052951A successfully refreshed from Google Patents.
US4052951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rowing device for a forward facing rower
Assignee: Individual
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Filing: 1976-01-09
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Granted: 1977-10-11
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Expires: 1996-01-09
Abstract
Abstract An oarlock design which permits the rower to face forwardly through the use of a second class lever wherein the oarlocks are restrained to move forwardly and backwardly along arculate side rails so that each oar translates about a vertical pivot point which is spaced across the boat away from the normal oarlock pivot point.
Inventors
- 👤 Alton E. Farr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:05
CPC Classifications
B; B63; B63H; B63H16/00; B63H16/08; B63H16/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
132 words
A rowing device which enables the rower to pull the handle of a substantially straight and continuous oar backward while facing the direction of motion of the boat comprising: a rail connected to the boat; and a carriage including means for connecting said carriage said rail for predetermined movement about and along said rail, said last named means including at least three rollers which ride on said rail to restrain said carriage to longitudinal movements along said rail and rotational movements about said rail and restraint means on said carriage for engagement with a substantially straight and continuous oar and including at least two oarlocks connected to said carriage and positioned so that the oar is restrained so as to remain generally perpendicular to said rail during normal operation of said device.
Claim 2
Dependent Claim
132 words
A rowing device which enables the rower to pull the handle of a substantially straight and continuous oar backward while facing the direction of motion of the boat comprising: a rail connected to the boat; and a carriage including means for connecting said carriage said rail for predetermined movement about and along said rail, said last named means including at least three rollers which ride on said rail to restrain said carriage to longitudinal movements along said rail and rotational movements about said rail and restraint means on said carriage for engagement with a substantially straight and continuous oar and including at least two oarlocks connected to said carriage and positioned so that the oar is restrained so as to remain generally perpendicular to said rail during normal operation of said device.
Claim 3
Dependent Claim
33 words
The rowing device defined in claim 1 wherein said rail has opposite ends, said device including connection means which fixedly connect said rail to at least one of the gunnels of the boat.
Claim 4
Dependent Claim
47 words
The rowing device defined in claim 2 wherein said rail includes resilient abutment means at said ends thereof and said carriage includes abutment surfaces which engage said resilient abutment means to restrict the total movement of said carriage along said rail and to rebound the carriage therefrom.
Claim 5
Dependent Claim
19 words
The rowing device defined in claim 3 wherein said rail has a predetermined curvature from end to end thereof.
Claim 6
Dependent Claim
21 words
The rowing device defined in claim 4 wherein said predetermined curvature of said rail is convex with respect to the rower.
Claim 7
Dependent Claim
42 words
The rowing device defined in claim 1 wherein said carriage oar engagement means include at least two oarlocks connected to said carriage and wherein said rowing device also includes an oar that acts as a unitary member positioned in said oar locks.
Claim 8
Dependent Claim
25 words
The rowing device defined in claim 6 wherein said oarlocks are U-shaped facing so that the force of gravity tends to retain the oar therein.
Claim 9
Dependent Claim
36 words
The rowing device defined in claim 1 wherein said rail has a circular outer surface cross-section, said at least three rollers attached thereto having concave roller surfaces for engaging said circular outer surface of said rail.
Claim 10
Dependent Claim
38 words
The rowing device defined in claim 8 wherein four rollers are attached in pairs on opposite sides of said rail and at opposite ends of said carriage, said pairs of rollers having axes of rotation which are parallel.
Claim 11
Dependent Claim
88 words
The rowing device defined in claim 1 including: a second rail connected to the boat on the opposite side from the other; and a second carriage connected for movement about and along said second rail, said second carriage including at least three rollers which ride on said rail to restrain movements of said carriage to longitudinal movements along said rail and rotational movements about said rail and second restraint means for engagement with another oar which restrains the stroking movements thereof to the movements of said second carriage.
Claim 12
Dependent Claim
21 words
The rowing device defined in claim 10 wherein said rails are positioned at equal distances along the sides of the boat.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-10 | 1981-04-11 | 1981-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-10 | 1985-04-11 | 1985-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-10 | 1989-04-11 | 1989-10-11 | $7700.00 | Window Closed / Lapsed |