← Back to Patent Explorer
US4445684A Expired / Lapsed US ⏱️ 0.0 years remaining

Leg stretching machine

Assignee: Individual
•
Filing: 1982-07-19
•
Granted: 1984-05-01
•
Expires: 2002-07-19
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A leg stretching machine comprises a seat fixed to one end of a shaft having a winch connected to slideably mounted spreader arms for splitting one's legs apart to stretch and develop leg muscles. The spreader arms are pivotally connected to a cylinder mounted on the shaft at the end opposite to the seat. The ends of the spreader arms not pivotally connected have pads. The padded ends of the spreader arms rest against the insides of the lower legs of the exerciser sitting in seat. The winch is used to pull the cylinder towards the seat. This causes the spreader arms to exert force against the insides of the exerciser's legs thereby spreading them. A ratchet device on the winch allows holding control at any leg split position. A hand grip is also mounted on the shaft between the seat and the spreader arm cylinder. This allows the exerciser to pull the upper body closer to the floor thereby simulating various martial arts positions.

Inventors

  • 👤 Henry C. Ruff

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 22:58
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02; A61H1/0237; A61H1/0244; A61H2001/0248; A61H2201/00; A61H2201/12; A61H2201/1253; A61H2201/16; A61H2201/1602; A61H2201/1623; A61H2201/1628; A61H2201/1633; A61H2201/164; A61H2201/1657; A61H2201/1676; Y; Y10; Y10S; Y10S482/00; Y10S482/907

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 152 words
A leg stretching machine comprising: a shaft having a top side, a bottom side, a front end, and a back end; a seat attached on the top side at the back end of the shaft; a winch mounted on the shaft between the seat and the front end of the shaft; a cross-bar having a pair of ends slideably mounted on the shaft between the winch and the front end of the shaft; a flexible connecting means between the winch and the cross-bar; a pair of rods each having two ends, one end of which is pivotally attached to the cross-bar; and a pad means pivotally attached to the opposite end of each rod and each being adapted to engage a user's leg while seated on the machine whereby the user may operate the winch and draw the cross-bar toward him and thereby cause the pads to be forced against his legs.
Claim 2
Dependent Claim 152 words
A leg stretching machine comprising: a shaft having a top side, a bottom side, a front end, and a back end; a seat attached on the top side at the back end of the shaft; a winch mounted on the shaft between the seat and the front end of the shaft; a cross-bar having a pair of ends slideably mounted on the shaft between the winch and the front end of the shaft; a flexible connecting means between the winch and the cross-bar; a pair of rods each having two ends, one end of which is pivotally attached to the cross-bar; and a pad means pivotally attached to the opposite end of each rod and each being adapted to engage a user's leg while seated on the machine whereby the user may operate the winch and draw the cross-bar toward him and thereby cause the pads to be forced against his legs.
Claim 3
Dependent Claim 28 words
A leg stretching machine in accordance with claim 1 further comprising: a stopping ring mounted on the shaft between the cross-bar and the front end of the shaft.
Claim 4
Dependent Claim 25 words
A leg stretching machine in accordance with claim 2 further comprising: a hand grip assembly attached to the shaft between the winch and the cross-bar.
Claim 5
Dependent Claim 16 words
A leg stretching machine in accordance with claim 3 whereas: the winch includes a ratchet brake.
Claim 6
Dependent Claim 22 words
A leg stretching machine in accordance with claim 4 wherein: the connecting means between the winch and the cross-bar is a rope.

References Cited (Backward Citations)

US902946A Cited
US3834694A Cited
US4046373A Cited
US4125258A Cited
US4111415A Cited
US4132404A Cited
US4149713A Cited
US4139193A Cited
US4277062A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-05-01 1987-10-31 1988-05-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-05-01 1991-10-31 1992-05-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-05-01 1995-10-31 1996-05-01 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag