Patent US4977996A successfully refreshed from Google Patents.
Patent US2681391A successfully refreshed from Google Patents.
Patent US3910165A successfully refreshed from Google Patents.
US3910165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extended guide-tie rods
Assignee: Individual
•
Filing: 1972-11-20
•
Granted: 1975-10-07
•
Expires: 1992-11-20
Abstract
Abstract Piston-containing cylinder includes tie rod or rods extending therethrough. Within the pneumatically or hydraulically pressurized cylinder, the piston rides along and is guided by the tie rods. The rod portions can extend without the cylinder, and be fixed and serve as guides for a block which block reciprocates with the piston. This may cause movement of some further member, such as cause the rotation of a yoke, which yoke may be keyed to a valve stem.
Inventors
- 👤 John M Sheesley
- 👤 Ronald A Gulick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:32
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/02; F15B15/06; F15B15/066; F16; F16J; F16J10/00; F16K; F16K31/00; F16K31/12; F16K31/16; F16K31/163; F16K31/1635
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
146 words
In an actuator having a power driven piston reciprocatingly positioned within a cylinder, and a piston rod linked at one end to said piston with said piston rod''s other end extending outside of said cylinder, the improvement comprising: spaced guide rods within said cylinder, and fixed to said cylinder at opposite ends thereof, said piston slidably engaging said guide rods; a follower device connected to said other end of said piston rod for movement therewith exterior of said cylinder; at least one follower guide means, exterior of said cylinder and fixed thereto, said follower guide means being a linear extension of at least one of said spaced guide rods; said follower device including means for slidably engaging said follower guide means; and means associated with said follower device for actuating a further piece of equipment on said follower being caused to move by said piston rod.
Claim 2
Dependent Claim
146 words
In an actuator having a power driven piston reciprocatingly positioned within a cylinder, and a piston rod linked at one end to said piston with said piston rod''s other end extending outside of said cylinder, the improvement comprising: spaced guide rods within said cylinder, and fixed to said cylinder at opposite ends thereof, said piston slidably engaging said guide rods; a follower device connected to said other end of said piston rod for movement therewith exterior of said cylinder; at least one follower guide means, exterior of said cylinder and fixed thereto, said follower guide means being a linear extension of at least one of said spaced guide rods; said follower device including means for slidably engaging said follower guide means; and means associated with said follower device for actuating a further piece of equipment on said follower being caused to move by said piston rod.
Claim 3
Dependent Claim
29 words
The actuator of claim 1 wherein said follower guide means comprises a pair of spaced follower guide members, each being linear extensions of one of said spaced guide rods.
Claim 4
Dependent Claim
17 words
The actuator of claim 2 wherein said follower guide members and said spaced guide rods are integral.
Claim 5
Dependent Claim
24 words
The actuator of claim 2 wherein said piston rod reciprocates intermediate said follower guide members along a line parallel to said follower guide members.
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) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |