Patent US3706309A successfully refreshed from Google Patents.
US3706309A
Expired / Lapsed
US
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Device for applying and releasing pressure
Assignee: TOFTNESS POST GRADUATE SCHOOL OF CHIROPRACTIC Inc A WIS CORP
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Filing: 1971-04-29
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Granted: 1972-12-19
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Expires: 1991-04-29
Abstract
Abstract A pressure applying and pressure releasing device consisting of a spring pressed rod in connection with a gauge to apply a measured degree of pressure by means of said rod against a given area and said rod has in connection therewith a stop member to hold said rod in its pressure applying position and means to actuate said stop member to release said rod from its pressure applying position.
Inventors
- 👤 Irwing N Toftness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:50
CPC Classifications
A; A61; A61H; A61H39/00; A61H39/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A device for applying and releasing pressure, having in combination a housing including a handle portion, a rod-like pressure applying member extending partially outwardly of said housing and being movable axially thereof, a coil spring disposed about said pressure applying member, said pressure applying member carrying a stop means for said spring at one end of said spring, a stop means for said spring at the other end thereof comprising an elongated member pivotally secured in said housing on an axis disposed in a direction transversely of the axis of said housing and having a finger engaging portion extending outwardly of said housing and having a spring stopping portion extending inwardly of said housing, said spring stopping portion being engaged upon said spring being compressed by movement of said pressure applying member inwardly of said housing, and said outwardly extending portion being engaged for operation by a finger of the hand holding said handle portion for a quick release of said spring.
Claim 2
Independent Claim
162 words
A device for applying and releasing pressure, having in combination a housing including a handle portion, a rod-like pressure applying member extending partially outwardly of said housing and being movable axially thereof, a coil spring disposed about said pressure applying member, said pressure applying member carrying a stop means for said spring at one end of said spring, a stop means for said spring at the other end thereof comprising an elongated member pivotally secured in said housing on an axis disposed in a direction transversely of the axis of said housing and having a finger engaging portion extending outwardly of said housing and having a spring stopping portion extending inwardly of said housing, said spring stopping portion being engaged upon said spring being compressed by movement of said pressure applying member inwardly of said housing, and said outwardly extending portion being engaged for operation by a finger of the hand holding said handle portion for a quick release of said spring.
References Cited (Backward Citations)
US1942982A
Cited
US2572389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |