US3689199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air pressure intensifier
Assignee: Individual
•
Filing: 1971-01-08
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Granted: 1972-09-05
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Expires: 1991-01-08
Abstract
Abstract The specification discloses an air pressure intensifier adapted to be supplied with air at a certain lower pressure and operable to increase the pressure of the air to a predetermined higher pressure. The device has reciprocating pistons driven by eccentrics and employs a cooling medium for cooling the pistons as the device operates. In one modification, the air pressure intensifier is connected in circuit with a source of air under pressure and only operates when the source drops to a certain lower level and turns off when the pressures reaches a predetermined amount.
Inventors
- 👤 Ross Bassinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:23
CPC Classifications
F; F04; F04B; F04B27/00; F04B27/04; F04B27/053; F04B27/0536; F04B27/005; F04B39/00; F04B39/0005; F04B39/06; F04B39/10; F04B39/102; F04B39/1033; F04B41/00; F04B41/06; F04B49/00; F04B49/02; F04B49/022; F04B9/00; F04B9/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
314 words
An air pressure intensifier comprising: a housing, a shaft rotatable in the housing and having eccentric means thereon, cylinder means connected to the housing and substantially coplanar with said eccentric means and perpendicular to the axis of said shaft means, inlet means and outlet means in the end of said cylinder means which is remote from said housing, piston means reciprocably mounted in said cylinder means, shoe means on the piston means operatively engaging said eccentric means for reciprocation of said piston means in said cylinder means upon rotation of said shaft, check valve means in said inlet means opening toward said cylinder means, check valve means in said outlet means opening away from said cylinder means, each said piston means having a larger outer end forming the piston portion thereof and a smaller tubular part extending from the piston portion into the housing and forming the pushrod portion of the piston means, said piston portion being hollow and communicating with the inside of said pushrod portion and having a closed outer end, said shoe means closing the end of said pushrod portion adjacent said eccentric means, each said cylinder means having a shouldered bore with a larger outer part receiving said piston portion and a smaller inner part receiving said pushrod portion, a cavity in said smaller port of said cylinder means opening toward said pushrod portion and a first port leading from the cavity to the outside of said cylinder means, a second port leading from the larger part of said cylinder means adjacent said smaller part to the outside of said cylinder means, slot means in said pushrod portion communicating with said cavity, and passage means in said piston means leading from the underside of the closed end of said piston portion of the outer surface of said piston portion at the juncture of said piston portion and said pushrod portion.
Claim 2
Dependent Claim
314 words
An air pressure intensifier comprising: a housing, a shaft rotatable in the housing and having eccentric means thereon, cylinder means connected to the housing and substantially coplanar with said eccentric means and perpendicular to the axis of said shaft means, inlet means and outlet means in the end of said cylinder means which is remote from said housing, piston means reciprocably mounted in said cylinder means, shoe means on the piston means operatively engaging said eccentric means for reciprocation of said piston means in said cylinder means upon rotation of said shaft, check valve means in said inlet means opening toward said cylinder means, check valve means in said outlet means opening away from said cylinder means, each said piston means having a larger outer end forming the piston portion thereof and a smaller tubular part extending from the piston portion into the housing and forming the pushrod portion of the piston means, said piston portion being hollow and communicating with the inside of said pushrod portion and having a closed outer end, said shoe means closing the end of said pushrod portion adjacent said eccentric means, each said cylinder means having a shouldered bore with a larger outer part receiving said piston portion and a smaller inner part receiving said pushrod portion, a cavity in said smaller port of said cylinder means opening toward said pushrod portion and a first port leading from the cavity to the outside of said cylinder means, a second port leading from the larger part of said cylinder means adjacent said smaller part to the outside of said cylinder means, slot means in said pushrod portion communicating with said cavity, and passage means in said piston means leading from the underside of the closed end of said piston portion of the outer surface of said piston portion at the juncture of said piston portion and said pushrod portion.
Claim 3
Dependent Claim
26 words
An air pressure intensifier according to claim 1 which includes seal means in said smaller part of said cylinder means between said cavity and said housing.
Claim 4
Dependent Claim
34 words
An air pressure intensifier according to claim 1 which includes conduit means leading to the surface of said pushrod means on the housing side of said seal means for the supply of lubricant thereto.
Claim 5
Dependent Claim
45 words
An air pressure intensifier according to claim 3 which includes passage means leading from the eccentric end of said shoe means to the outer surface of said pushrod means for the supply of lubricant from said conduit means to the bottom of said shoe means.
Claim 6
Dependent Claim
31 words
An air pressure intensifier according to claim 4 which includes a disc member sealingly mounted in said pushrod means between the inner end of said shoe means and said slot means.
Claim 7
Dependent Claim
36 words
An air pressure intensifier according to claim 1 which includes check valve means connected to said first port opening towarD said cylinder and check valve means connected to said second port opening away from said cylinder.
Claim 8
Dependent Claim
20 words
An air pressure intensifier according to claim 1 which includes a supply of cooling air connected to said first port.
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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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |