US3708166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butterfly exercise machine
Assignee: PARAMOUNT FITNESS EQUIPMENT CORP
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Filing: 1971-09-13
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Granted: 1973-01-02
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Expires: 1991-09-13
Abstract
Abstract A butterfly exercising apparatus includes a pair of cranks pivotally mounted to a table supporting frame assembly for butterfly-like arcuate motion. Movement of either crank handle is transmitted by a cable and pulleys to a lever arm the free end of which is hinged to the bottom of a weight displacing shaft. A set of weights, adapted to slide along guide rods depending from a pivotable support member, are pinned to the shaft. Arcuate motion of either or both crank handles moves the lever arm, shaft and weights up and down, providing a selectable weight resist to the person using the exerciser.
Inventors
- 👤 R Annas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:24
CPC Classifications
A; A63; A63B; A63B23/00; A63B23/035; A63B23/12; A63B23/1245; A63B23/1254; A63B21/00; A63B21/06; A63B21/062; A63B21/0626; A63B21/0628; A63B21/063; A63B21/0632; A63B21/15; A63B21/151; A63B21/154; A63B21/40; A63B21/4027; A63B21/4033; A63B21/4035; A63B21/4041; A63B21/4047; A63B21/0615; A63B2208/00; A63B2208/02; A63B2208/0242; A63B2208/0252
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
150 words
A butterfly exercising apparatus comprising: a first upwardly extending frame assembly, a transverse member pivotally connected across the upper ends of said first frame assembly; one or more weight guide rods extending downwardly from said transverse member, a stack of weights adapted for sliding displacement along said guide rods, said weights, guide rods and transverse member together being adapted for arcuate motion about and beneath the pivotal axis of said transverse member, a weight displacing shaft extending upwardly through said stack of weights and including pin means for attaching a selected subset of said weights for upward displacement with said shaft, a lever arm hinged at one end to the lower end of said weight displacing shaft, and butterfly crank assembly means for imparting upwardly pivotal motion to said lever arm, thereby displacing said shaft and subset of weights, in response to arcuate movement of one or more crank handles.
Claim 2
Dependent Claim
150 words
A butterfly exercising apparatus comprising: a first upwardly extending frame assembly, a transverse member pivotally connected across the upper ends of said first frame assembly; one or more weight guide rods extending downwardly from said transverse member, a stack of weights adapted for sliding displacement along said guide rods, said weights, guide rods and transverse member together being adapted for arcuate motion about and beneath the pivotal axis of said transverse member, a weight displacing shaft extending upwardly through said stack of weights and including pin means for attaching a selected subset of said weights for upward displacement with said shaft, a lever arm hinged at one end to the lower end of said weight displacing shaft, and butterfly crank assembly means for imparting upwardly pivotal motion to said lever arm, thereby displacing said shaft and subset of weights, in response to arcuate movement of one or more crank handles.
Claim 3
Dependent Claim
67 words
A butterfly exercising apparatus according to claim 1 wherein said butterfly crank assembly means comprises: a second upwardly extending frame assembly, a first crank having a handle and pivotally attached to said second frame assembly for arcuate movement about a first horizontal axis, and pulley and cable means interconnecting said crank and said lever arm for transmitting movement of said first crank handle to said lever arm.
Claim 4
Dependent Claim
66 words
A butterfly exercising apparatus according to claim 2 wherein said butterfly crank assembly means further comprises a second crank having a handle and pivotally attached to said second frame assembly for arcuate motion about a horizontal axis parallel to but spaced from said first axis, said pulley and cable means including a single cable interconnecting and transmitting movement of either crank handle to said lever arm.
Claim 5
Dependent Claim
56 words
A butterfly exercising apparatus according to claim 3 wherein said pulley and cable means comprises a single pulley attached to the middle of said lever arm and having an axis generally parallel to said lever arm, the ends of said cable being attached respectively to the arms of said cranks, said cable engaging said single pulley.
Claim 6
Dependent Claim
32 words
A butterfly exercising apparatus according to claim 4 and further comprising a table situated between said cranks and adapted to support a user while said user grips and moves said crank handles.
Claim 7
Dependent Claim
37 words
A butterfly exercising apparatus according to claim 5 wherein said second frame assembly includes a horizontal table supporting member, additional pulleys being attached to said table supporting member to guide said cable around and beneath said table.
Claim 8
Dependent Claim
34 words
A butterfly exercising apparatus according to claim 6 further comprising another frame member supporting the foot of said table, the fulcrum end of said lever arm being pivotally mounted to said other frame member.
Claim 9
Dependent Claim
150 words
In an exerciser of the type wherein a user reclines on a table and moves crank handles through arcuate paths; a frame assembly supporting said table, a pair of cranks pivotally mounted to said frame assembly on either side of said table, said cranks each having a crank arm and a crank handle, a cable extending between said crank arms, a Lever arm extending generally longitudinally beneath said table, means operatively attaching said cable to said lever arm for pivoting said lever arm in response to motion of said cranks, a stack of weights dependingly supported in a frame and adapted for limited swinging motion, a weight lifting shaft hinged to the free end of said lever arm and extending upwardly therefrom, and means for connecting a subset of said weights to said shaft for upward displacement therewith as said lever arm is raised by arcuate motion of said cranks.
Claim 10
Dependent Claim
150 words
In an exerciser of the type wherein a user reclines on a table and moves crank handles through arcuate paths; a frame assembly supporting said table, a pair of cranks pivotally mounted to said frame assembly on either side of said table, said cranks each having a crank arm and a crank handle, a cable extending between said crank arms, a Lever arm extending generally longitudinally beneath said table, means operatively attaching said cable to said lever arm for pivoting said lever arm in response to motion of said cranks, a stack of weights dependingly supported in a frame and adapted for limited swinging motion, a weight lifting shaft hinged to the free end of said lever arm and extending upwardly therefrom, and means for connecting a subset of said weights to said shaft for upward displacement therewith as said lever arm is raised by arcuate motion of said cranks.
Claim 11
Dependent Claim
28 words
An exerciser according to claim 8 wherein said means operatively attaching comprises a pulley attached along the middle of said lever arm, said cable looping around said pulley.
Claim 12
Dependent Claim
23 words
An exerciser according to claim 9 further comprising additional pulleys mounted to said frame assembly for guiding said cable around beneath said table.
Claim 13
Dependent Claim
31 words
An exerciser according to claim 10 further comprising a supporting assembly beneath the foot end of said table, the fulcrum end of said lever arm being pivoted to said supporting assembly.
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |