US3230784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jack and lifting equipment
Assignee: Individual
•
Filing: 1962-12-03
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Granted: 1966-01-25
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Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 Heidenstam Erik Johan Von
- 👤 Heidenstam Gustav Olov Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:49
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/04; E02B17/08; E02B17/0836; E02B17/0881; B; B66; B66F; B66F1/00; B66F1/02; B66F1/04; B66F1/08; Y; Y10; Y10T; Y10T74/00; Y10T74/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
IN A LIFTING APPARATUS INCLUDING A THREADED ROD ADAPTED TO HAVE A JACK MOUNTED THEREON, A JACK COMPRISING: COAXIALLY DISPOSED, INDEPENDENTLY ROTATABLE FIRST AND SECOND NUTS; FORCE GENERATING MEANS INCLUDING AT LEAST TWO MEMBERS RECIPROCALLY MOVABLE RELATIVE TO EACH OTHER IN THE AXIAL DIRECTION OF SAID NUTS; A SEAT SURFACE ON ONE OF SAID MEMBERS ADAPTED TO COOPERATE WITH A CORRESPONDING SEAT SURFACE ON SAID FIRST NUT TO TRANSMIT FORCES THEREBETWEEN; A SEAT SURFACE ON THE OTHER OF SAID MEMBERS ADAPTED TO COOPERATE WITH A CORRESPONDING SEAT SURFACE ON SAID SECOND NUT TO TRANSMIT FORCES THEREBETWEEN; MEANS FOR RECIPROCATING SAID MEMBERS; MEANS FOR ALTERNATELY ROTATING SAID FIRST AND SECOND NUTS IN THE SAME DIRECTION IN CORRELATION WITH THE MOVEMENT OF SAID MEMBERS OF SAID FORCE GENERATING MEANS; LOCKING MEANS BETWEEN SAID FIRST NUT AND SAID ONE MEMBER ADAPTED TO COOPERATE WITH SAID FIRST NUT TO STOP AND LOCK SAID FIRST NUT IN A PREDETERMINED ANGULAR LOCKING POSITION, SAID ONE MEMBER BEING AXIALLY MOVABLE TO RELEASE SAID FIRST NUT FOR ROTATION THROUGH A PREDETERMINED ANGLE UNTIL IT AGAIN REACHES AN ANGULAR LOCKING POSITION DEFINED BY SAID LOCKING MEANS.
Claim 2
Dependent Claim
187 words
IN A LIFTING APPARATUS INCLUDING A THREADED ROD ADAPTED TO HAVE A JACK MOUNTED THEREON, A JACK COMPRISING: COAXIALLY DISPOSED, INDEPENDENTLY ROTATABLE FIRST AND SECOND NUTS; FORCE GENERATING MEANS INCLUDING AT LEAST TWO MEMBERS RECIPROCALLY MOVABLE RELATIVE TO EACH OTHER IN THE AXIAL DIRECTION OF SAID NUTS; A SEAT SURFACE ON ONE OF SAID MEMBERS ADAPTED TO COOPERATE WITH A CORRESPONDING SEAT SURFACE ON SAID FIRST NUT TO TRANSMIT FORCES THEREBETWEEN; A SEAT SURFACE ON THE OTHER OF SAID MEMBERS ADAPTED TO COOPERATE WITH A CORRESPONDING SEAT SURFACE ON SAID SECOND NUT TO TRANSMIT FORCES THEREBETWEEN; MEANS FOR RECIPROCATING SAID MEMBERS; MEANS FOR ALTERNATELY ROTATING SAID FIRST AND SECOND NUTS IN THE SAME DIRECTION IN CORRELATION WITH THE MOVEMENT OF SAID MEMBERS OF SAID FORCE GENERATING MEANS; LOCKING MEANS BETWEEN SAID FIRST NUT AND SAID ONE MEMBER ADAPTED TO COOPERATE WITH SAID FIRST NUT TO STOP AND LOCK SAID FIRST NUT IN A PREDETERMINED ANGULAR LOCKING POSITION, SAID ONE MEMBER BEING AXIALLY MOVABLE TO RELEASE SAID FIRST NUT FOR ROTATION THROUGH A PREDETERMINED ANGLE UNTIL IT AGAIN REACHES AN ANGULAR LOCKING POSITION DEFINED BY SAID LOCKING MEANS.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |