Patent US3733914A successfully refreshed from Google Patents.
US3733914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motion conversion means
Assignee: RES ENGINEERING CO
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Filing: 1971-06-01
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Granted: 1973-05-22
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Expires: 1991-06-01
Abstract
Abstract A device for converting rotary motion of one member into linear motion of a further member. Rotating member, such as a spur gear rotates an intermediate, internally and externally toothed or threaded nut. The internal threads may be caused to engage or disengage the external threads on a linearly moveable rod member, causing such linear motion thereof.
Inventors
- 👤 J Sheesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:37
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/22; F16H25/2285; F16H25/229; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19805
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
70 words
Motion conversion device comprising: longitudinally movable, exteriorly threaded output means; rotatable interiorly threaded member having said interiorly threaded portion engageable with said exteriorly threaded portion of said output means, said interiorly threaded portion having a greater diameter than the exterior diameter of said exteriorly threaded output means portion; combination means for causing said rotatable member to become engaged with said output means and to become disengaged from said output means.
Claim 2
Dependent Claim
70 words
Motion conversion device comprising: longitudinally movable, exteriorly threaded output means; rotatable interiorly threaded member having said interiorly threaded portion engageable with said exteriorly threaded portion of said output means, said interiorly threaded portion having a greater diameter than the exterior diameter of said exteriorly threaded output means portion; combination means for causing said rotatable member to become engaged with said output means and to become disengaged from said output means.
Claim 3
Dependent Claim
19 words
The device of claim 1 and including: further means, said means being for causing rotation of said rotatable member.
Claim 4
Dependent Claim
16 words
The device of claim 2 and including means for restricting lateral movement of said rotatable member.
Claim 5
Dependent Claim
26 words
The device of claim 2 wherein said rotation causing means includes exterior threads on said rotatable member and a gear device mating with said exterior threads.
Claim 6
Dependent Claim
26 words
The device of claim 2 wherein said combination means include a pair of oppositely disposed shoes adapted to exert oppositely directed forces against said rotatable member.
Claim 7
Dependent Claim
17 words
The device of claim 2 and including means for absorbing the lateral thrust of said rotatable member.
Claim 8
Dependent Claim
20 words
The device of claim 1 wherein said combination means includes piston means for causing one of said engagement or disengagement.
Claim 9
Dependent Claim
20 words
The device of claim 1 wherein said combination means includes spring means for causing one of said engagement or disengagement.
Claim 10
Dependent Claim
95 words
In a motion conversion device having a power supply to cause piston reciprocation, the combination of: shoe device linked to said piston for movement therewith and said shoe engageable with a rotatable nut device having exterior and interior threads; said interior threads being releasably engageable with exterior threads carried by a longitudinally movable output member; the interior diameter of said nut device being greater than the outer diameter of said output threads; means for causing engagement and disengagement of said nut threads and said rod threads; and means for causing rotation of said nut device.
Claim 11
Dependent Claim
95 words
In a motion conversion device having a power supply to cause piston reciprocation, the combination of: shoe device linked to said piston for movement therewith and said shoe engageable with a rotatable nut device having exterior and interior threads; said interior threads being releasably engageable with exterior threads carried by a longitudinally movable output member; the interior diameter of said nut device being greater than the outer diameter of said output threads; means for causing engagement and disengagement of said nut threads and said rod threads; and means for causing rotation of said nut device.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |