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US3889974A Expired / Lapsed US ⏱️ 0.0 years remaining

Ergonomic drive for bicycles and other human powered machines

Assignee: Individual
•
Filing: 1973-10-01
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Granted: 1975-06-17
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Expires: 1993-10-01
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Abstract

Abstract A machine consisting briefly of a frame, a rotatable member mounted for rotation on the frame, a flexible elongated member having a tapered thickness connected to the rotatable member and spirally wound thereon, a foot or hand receiving member connected to the free end of the elongated member so that a person can withdraw portions of the elongated member by alternatively bending and extending his leg or arm and a spring connected to the frame and to the drum for rewinding the elongated member upon the drum after each withdrawal of the elongated member from the drum.

Inventors

  • 👤 Charles A Kallander

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 08:07
CPC Classifications
B; B62; B62M; B62M1/00; B62M1/24; B62M1/28

Claims Analysis

Total Claims: 30
Claim 1
Independent Claim 144 words
A machine for converting human powered reciprocating leg or arm motion to rotary motion comprising: a. a frame; b. a rotatable member mounted for rotation on said frame; c. a flexible stranded elongated member having a thickness substantially less than its width and having an end connected to said rotatable member and spirally wound upon itself on said rotatable member; d. a plurality of non-compressible members of increasing thickness arranged in side by side non-connected relationship and each individually attached to said elongated member along a portion of its length forming a segmented portion of tapering thickness which increase in thickness in proportion to the distance from the end connected to said rotatable member; e. foot or hand receiving means engaging said elongated member; and f. means connected to said frame and said rotatable member for rewinding said elongated member upon said rotatable member.
Claim 2
Dependent Claim 144 words
A machine for converting human powered reciprocating leg or arm motion to rotary motion comprising: a. a frame; b. a rotatable member mounted for rotation on said frame; c. a flexible stranded elongated member having a thickness substantially less than its width and having an end connected to said rotatable member and spirally wound upon itself on said rotatable member; d. a plurality of non-compressible members of increasing thickness arranged in side by side non-connected relationship and each individually attached to said elongated member along a portion of its length forming a segmented portion of tapering thickness which increase in thickness in proportion to the distance from the end connected to said rotatable member; e. foot or hand receiving means engaging said elongated member; and f. means connected to said frame and said rotatable member for rewinding said elongated member upon said rotatable member.
Claim 3
Dependent Claim 65 words
A machine as described in claim 1 comprising: a. said non-compressible members consist of hard beads having single arcuate curved outer faces generally conforming to said spiral and are connected to said flexible member and a width so that the member can be spirally wound upon itself so that a substantial portion of the face of the bead rests upon the adjoining stranded elongated member.
Claim 4
Dependent Claim 39 words
said arm engaging said elongated member for drawing off a portion of said elongated member from with each reciprocating cycle of said arm and permitting said means to wind said member back on said rotatable member with each cycle.
Claim 5
Dependent Claim 39 words
said arm engaging said elongated member for drawing off a portion of said elongated member from with each reciprocating cycle of said arm and permitting said means to wind said member back on said rotatable member with each cycle.
Claim 6
Dependent Claim 22 words
an elongated cable member attached to said control member for winding receipt thereon and connected to said control ring for winding thereon.
Claim 7
Dependent Claim 22 words
an elongated cable member attached to said control member for winding receipt thereon and connected to said control ring for winding thereon.
Claim 8
Dependent Claim 20 words
a clutch spring mounted in surrounding frictional releasable sliding grip with said take-up post; having a first and second end;
Claim 9
Dependent Claim 20 words
a clutch spring mounted in surrounding frictional releasable sliding grip with said take-up post; having a first and second end;
Claim 10
Dependent Claim 16 words
a spring engaging control ring having slotted openings for engaging the ends of said spring; and
Claim 11
Dependent Claim 16 words
a spring engaging control ring having slotted openings for engaging the ends of said spring; and
Claim 12
Dependent Claim 17 words
A machine as described in claim 2 comprising: a. said elongated member consists of a metal cable.
Claim 13
Dependent Claim 17 words
A machine as described in claim 2 comprising: a. said elongated member consists of a woven material.
Claim 14
Dependent Claim 9 words
said storage ring being mounted on said control ring.
Claim 15
Dependent Claim 9 words
said storage ring being mounted on said control ring.
Claim 16
Dependent Claim 76 words
A machine as described in claim 1 comprising: a. a drive member mounted for rotation with said rotatable member; b. a driven member having a diameter relatively greater than the diameter of said drive member mounted for rotation on said frame and disposed from said drive member; c. a flexible endless member coupling said drive and driven members; and d. means operatively connected to said drive and driven members providing unidirectional rotation of said driven member.
Claim 17
Dependent Claim 36 words
A machine as described in claim 5 comprising: a. said drive member and said driven member having first and second chain sprockets mounted thereon for rotation therewith; and b. said endless member consisting of a chain.
Claim 18
Dependent Claim 44 words
A machine as described in claim 1 comprising: a. means for changing the mechanical advantage connected to the end of said elongated member for drawing a portion of said eleongated member from said rotatable member and storing the end portion of said elongated member.
Claim 19
Dependent Claim 35 words
A machine as described in claim 7 comprising: a. said means for changing the mechanical advantage consists of a storage ring mounted for rotation on said frame for storing varying amounts of said elongated member.
Claim 20
Dependent Claim 17 words
A machine as described in claim 8 comprising: a. said means for changing the mechanical advantage includes;
Claim 21
Dependent Claim 25 words
A machine as described in claim 9 comprising: a. control means for varying the amount of said elongated member stored on said storage ring including:
Claim 22
Dependent Claim 34 words
A machine as described in claim 1 comprising: a. said non-compressible members are attached to substantially the entire length of said elongated member thereby forming a segmented belt which tapers substantially its entire length.
Claim 23
Dependent Claim 57 words
A machine as described in claim 1 comprising: a. said segmented portion of said elongated member having a tapering thickness is located adjacent the distal end of said elongated member; and b. a substantial portion of said elongated member located adjacent the end connected to said rotatable member is free of said non-compressible members of varying thickness.
Claim 24
Dependent Claim 146 words
A machine having a frame and output member comprising: a. a rotatable member mounted for oscillating rotation on said frame; b. a flexible elongated member having a portion of tapered thickness connected to said rotatable member and spirally wound upon itself thereon; c. foot adaptable means engaging said elongated member for drawing said member from said rotatable member; d. means to rewind said elongated member on said rotatable member; e. a storage ring mounted on said frame connected to and for receiving the free end of said elongated member; f. control means connected to said storage ring for rotating said storage ring and storing varying lengths of said elongated member; g. driven power train means connected to said rotatable member and including a driven member; and h. means interposed between said driven member and said rotatable member for transmitting uni-directional rotation only to said driven member.
Claim 25
Dependent Claim 146 words
A machine having a frame and output member comprising: a. a rotatable member mounted for oscillating rotation on said frame; b. a flexible elongated member having a portion of tapered thickness connected to said rotatable member and spirally wound upon itself thereon; c. foot adaptable means engaging said elongated member for drawing said member from said rotatable member; d. means to rewind said elongated member on said rotatable member; e. a storage ring mounted on said frame connected to and for receiving the free end of said elongated member; f. control means connected to said storage ring for rotating said storage ring and storing varying lengths of said elongated member; g. driven power train means connected to said rotatable member and including a driven member; and h. means interposed between said driven member and said rotatable member for transmitting uni-directional rotation only to said driven member.
Claim 26
Dependent Claim 13 words
A machine as described in claim 13 comprising: a. said foot means including:
Claim 27
Dependent Claim 57 words
A machine as described in claim 14 comprising: a. said arm being tubular for receiving said elongated member through a portion thereof; b. said output member including a ground engaging wheel connected to said driven member; and c. said driven power train including an endless flexible member connected to said rotatable member and to said driven member.
Claim 28
Dependent Claim 154 words
A machine as described in claim 13 comprising: a. said frame being divided into A and B sections and being pivotally connected together for a first rigid driving position and a second folded stored position; b. said members described in claim 11, all being mounted on said A section of said frame; c. a rear ground engaging wheel mounted for rotation on said A section of said frame and operatively connected to said drive member; d. a seat mounted on said A frame section; e. a front ground engaging wheel mounted for rotation on said B frame section and mounted for pivotal steering movement; f. steering means connected to said front ground engaging wheel mounted on said B frame section for pivotal movement; and g. manually engaging locking means connected to said A and B frame sections for locking and releasing said frame members permitting the rigid driving position and the folded storage position.
Claim 29
Dependent Claim 92 words
A machine as described in claim 13 comprising: a. said frame being divided into A, B and C sections and being pivotally connected together for a first rigid driving position and a second folded stored position; b. said members described in claim 11, all being mounted on said A section of said frame; c. a rear ground engaging wheel being mounted on said A section; d. a seat and seat tube being mounted on said B section; and e. the handle bars, fork and front wheel beiNg mounted on said C section.
Claim 30
Dependent Claim 118 words
A machine as described in claim 13 comprising: a. said foot adaptable means consisting of a pedal arm pivotally connected to the frame of said machine; b. a pair of spaced bearings mounted on the pivot end of said arm; c. a pair of bearing housings mounted on said frame consisting of approximately half circles for receiving said spaced bearings; d. a pair of spring clamps enclosing said bearing housing and said bearings; e. a spacer member mounted on each of said spring clamps enclosing said bearings in annular registration with said bearing housings; and f. guide members mounted on said frame for guiding said flexible elongated member through the approximate center of said pedal arm pivot point.

References Cited (Backward Citations)

US468680A Cited
US527396A Cited
US556545A Cited
US702804A Cited
US803811A Cited
US826899A Cited
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US2630333A Cited
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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) 1978-06-16 1978-12-16 1979-06-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-06-16 1982-12-16 1983-06-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-06-16 1986-12-16 1987-06-17 $7700.00 Window Closed / Lapsed

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