US4582311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically controlled chiropractic table
Assignee: Individual
•
Filing: 1983-10-27
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Granted: 1986-04-15
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Expires: 2003-10-27
Abstract
Abstract A chiropractic table that is hydraulically controlled for variable tension flexing. The pelvic section of the table is tilted by a hydraulic system that employs an accumulator which provides for control of manually-applied procedures. The use of hydraulics also requires less space than mechanical means thereby permitting additional functions to be combined into a single all-function table.
Inventors
- 👤 Lloyd A. Steffensmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:36
CPC Classifications
A; A61; A61G; A61G13/00; A61G13/009
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
139 words
A chiropractic table comprising a supporting frame, a plurality of independently movable sections including a pelvic section mounted on the supporting frame, the pelvic section being mounted on the frame for pivotal movement upwardly and downwardly, a hydraulic cylinder having an operating rod operatively connected to the pelvic section to control its pivotal movement, a system of pressurized fluid connected to the hydraulic cylinder, means for varying the amount of pressure in the system and to the hydraulic cylinder, and an accumulator connected in the system and directly to the hydraulic cylinder to provide for variable resistance to exterior force applied to the pelvic section and therefore to the operating rod of the hydraulic cylinder, such resistance returning the section to its original position upon removal of the exterior force to thereby control pivotal movement of the pelvic section.
Claim 2
Dependent Claim
139 words
A chiropractic table comprising a supporting frame, a plurality of independently movable sections including a pelvic section mounted on the supporting frame, the pelvic section being mounted on the frame for pivotal movement upwardly and downwardly, a hydraulic cylinder having an operating rod operatively connected to the pelvic section to control its pivotal movement, a system of pressurized fluid connected to the hydraulic cylinder, means for varying the amount of pressure in the system and to the hydraulic cylinder, and an accumulator connected in the system and directly to the hydraulic cylinder to provide for variable resistance to exterior force applied to the pelvic section and therefore to the operating rod of the hydraulic cylinder, such resistance returning the section to its original position upon removal of the exterior force to thereby control pivotal movement of the pelvic section.
Claim 3
Dependent Claim
43 words
The chiropractic table of claim 1 in which a valve is provided in the system between the hydraulic cylinder and the accumulator to selectively maintain the pressure in the hydraulic cylinder and thereby provide for locking the pelvic cushion in a selected position.
Claim 4
Dependent Claim
20 words
The chiropractic table of claim 1 in which the system includes a hydraulic pump for supplying pressure to the system.
Claim 5
Dependent Claim
30 words
The chiropractic table of claim 3 in which the hydraulic pump is operated by a manually operated lever operatively connected to the hydraulic pump and mounted on the supporting frame.
Claim 6
Dependent Claim
31 words
The chiropractic table of claim 2 in which a control valve is included in the system for varying the amount of pressure in the accumulator, the control valve being manually operated.
References Cited (Backward Citations)
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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) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |