Patent US3620210A successfully refreshed from Google Patents.
US3620210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sacroiliac rotator
Assignee: PARAMOUNT FITNESS EQUIPMENT CORP
•
Filing: 1969-03-21
•
Granted: 1971-11-16
•
Expires: 1989-03-21
Abstract
Abstract The sacroiliac rotator comprises a pair of adjoining parts A and B upon which the user, supine or prone, lies. The juncture between the parts falls approximately at the pelvic or sacroiliac region. Motion is imparted to one of the parts B in order to cause relative rotation of the upper and lower portions of the body about a center falling generally in the sacroiliac region. The part A has an arcuate recess or concavity C that fits the arcuate protuberance or convexity D of the part B. The opposite end of the part B is given a circular motion in a generally vertical plane in such manner that the arcuate parts C and D remain substantially in contiguous relationship. For this purpose, the horizontal axis x of up and down movement falls substantially at the crest of the companion parts, while the vertical axis y of sidewise movement falls substantially at the center of the arcuate parts. For this purpose, a special bracket E is provided.
Inventors
- 👤 Robert F Annas
- 👤 Vincent Hinsberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:58
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
184 words
In an isometronic exercising table: a. a first table part having a supporting surface and having one end formed substantially as a concave arc about a center located beyond the end; b. a hinge bracket; c. means mounting said hinge bracket for movement about an axis fixed with respect to said first table part and extending transversely of said one end of said first table part and so that said hinge bracket projects beyond said one end; d. a second table part having a supporting surface and having one end formed substantially as a convex projection about a center; e. means pivotally connecting said hinge bracket to said second table part for pivotal movement about an axis passing substantially through the said center of said convex projection and substantially perpendicular to its said supporting surface; f. said pivotally connecting means and said mounting means being so located that said axis of pivotal movement passes substantially through the said center of said concave arc; g. frame means supporting one of said table parts; and h. means imparting movement to the other of said table parts.
Claim 2
Dependent Claim
184 words
In an isometronic exercising table: a. a first table part having a supporting surface and having one end formed substantially as a concave arc about a center located beyond the end; b. a hinge bracket; c. means mounting said hinge bracket for movement about an axis fixed with respect to said first table part and extending transversely of said one end of said first table part and so that said hinge bracket projects beyond said one end; d. a second table part having a supporting surface and having one end formed substantially as a convex projection about a center; e. means pivotally connecting said hinge bracket to said second table part for pivotal movement about an axis passing substantially through the said center of said convex projection and substantially perpendicular to its said supporting surface; f. said pivotally connecting means and said mounting means being so located that said axis of pivotal movement passes substantially through the said center of said concave arc; g. frame means supporting one of said table parts; and h. means imparting movement to the other of said table parts.
Claim 3
Dependent Claim
45 words
The combination as set forth in claim 1 in which said fixed axis extends substantially across the sides of said arc whereby very little relative displacement results between said parts at the center of said arc as well as at the sides of said arc.
Claim 4
Dependent Claim
239 words
In an isometronic exercising table: a. a frame; b. a first table part supporteD on the frame, said first table part having a supporting surface and having one end formed substantially as a concave arc about a center located beyond said one end; c. a pair of bracket arms mounted on the frame and located beneath said one end of said first table part; d. a pivot bar supported between the bracket arms for movement about a substantially horizontal axis immediately beneath said first table part so that the center of said concave arc lies on one side of said horizontal axis and the ends of said concave arc lie on the other; e. a hinge bracket secured to said pivot bar; f. a second table part having a supporting surface and having one end formed substantially as a concave projection; g. a pivot plate attached to the under side of said second table part and in face-to-face contact with said hinge bracket; h. a pivot pin connecting said pivot plate to said hinge bracket for movement of said second table part about an axis located substantially at the center of said arcuate projection; i. said pivot pin and said pivot bar being located so that said axis of pivotal movement passes substantially through the said center of said concave arc; and j. a crank mechanism for imparting substantially circular movement to the end of said second table part.
Claim 5
Dependent Claim
239 words
In an isometronic exercising table: a. a frame; b. a first table part supporteD on the frame, said first table part having a supporting surface and having one end formed substantially as a concave arc about a center located beyond said one end; c. a pair of bracket arms mounted on the frame and located beneath said one end of said first table part; d. a pivot bar supported between the bracket arms for movement about a substantially horizontal axis immediately beneath said first table part so that the center of said concave arc lies on one side of said horizontal axis and the ends of said concave arc lie on the other; e. a hinge bracket secured to said pivot bar; f. a second table part having a supporting surface and having one end formed substantially as a concave projection; g. a pivot plate attached to the under side of said second table part and in face-to-face contact with said hinge bracket; h. a pivot pin connecting said pivot plate to said hinge bracket for movement of said second table part about an axis located substantially at the center of said arcuate projection; i. said pivot pin and said pivot bar being located so that said axis of pivotal movement passes substantially through the said center of said concave arc; and j. a crank mechanism for imparting substantially circular movement to the end of said second table part.
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |