Patent US3784103A successfully refreshed from Google Patents.
US3784103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsed liquid jet device
Assignee: Individual
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Filing: 1972-08-01
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Granted: 1974-01-08
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Expires: 1992-08-01
Abstract
Abstract A gas spring driven hydraulically cocked pulsed water jet device having a driving piston supported on a tubular member and reciprocable in a cylinder, the piston and tubular member arranged to be cocked by fluid pressure applied to a follower and adapted to be restrained in a cocked position by a locking means during the time the follower is retracted, the lock being arranged to be released to fire the device thereby driving a ram carried on the end of the tubular member into a water filled cavity whereupon the water is caused to be extruded at high pressure and high velocity through a nozzle.
Inventors
- 👤 W Cooley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:28
CPC Classifications
B; B05; B05B; B05B12/00; B05B12/02; B05B12/06; B26; B26F; B26F3/00; B26F3/004; E; E21; E21D; E21D9/00; E21D9/10; E21D9/1066
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
170 words
A pulsed liquid jet device comprising a supported cylinder, closure means for the cylinder affixed to the opposite ends thereof, a piston reciprocable in said cylinder, a tubular member extending through one of said closure means affixed to said piston, provided at its distal end portion with a ram, a follower element having a front wall movably positioned in said cylinder between the said one closure means and the piston and through which the tubular member passes, a nozzle continuously filled with water spaced from said ram, means arranged to slidably support the distal end portion, a lock means encompassing an extent of said tubular member disposed between said one closure means and the means arranged to slidably support the distal end portion thereof, a sleeve member spaced from and arranged to surround said lock means, means for introducing fluid to the front wall of said follower to cock the piston into a position for firing, and means to release the lock means to advance the ram into the nozzle.
Claim 2
Dependent Claim
170 words
A pulsed liquid jet device comprising a supported cylinder, closure means for the cylinder affixed to the opposite ends thereof, a piston reciprocable in said cylinder, a tubular member extending through one of said closure means affixed to said piston, provided at its distal end portion with a ram, a follower element having a front wall movably positioned in said cylinder between the said one closure means and the piston and through which the tubular member passes, a nozzle continuously filled with water spaced from said ram, means arranged to slidably support the distal end portion, a lock means encompassing an extent of said tubular member disposed between said one closure means and the means arranged to slidably support the distal end portion thereof, a sleeve member spaced from and arranged to surround said lock means, means for introducing fluid to the front wall of said follower to cock the piston into a position for firing, and means to release the lock means to advance the ram into the nozzle.
Claim 3
Dependent Claim
23 words
A pulsed liquid jet device as claimed in claim 1, wherein a resilient means is interposed between the piston and the follower element.
Claim 4
Dependent Claim
25 words
A pulsed liquid jet device as claimed in claim 1, wherein the hydraulic hammer and the nozzle means are axially supported in a frame member.
Claim 5
Dependent Claim
18 words
A pulsed liquid jet device as claimed in claim 3, wherein the frame member includes shock absorbing means.
Claim 6
Dependent Claim
27 words
A pulsed liquid jet device as claimed in claim 1, wherein the cylinder further includes means to divide it into a gas chamber and an oil chamber.
Claim 7
Dependent Claim
24 words
A pulsed liquid jet device as claimed in claim 5, wherein gas is introduced into said gas chamber through the one said closure member.
Claim 8
Dependent Claim
22 words
A pulsed liquid jet device as claimed in claim 6, wherein said further means is associated with a reciprocable second sleeve member.
Claim 9
Dependent Claim
22 words
A pulsed liquid jet device as claimed in claim 7, wherein said second sleeve member includes means for actuating said piston member.
Claim 10
Dependent Claim
21 words
A pulsed liquid jet device as claimed in claim 8, wherein said follower element is associated with the second sleeve member.
Claim 11
Dependent Claim
17 words
A pulsed liquid jet device as claimed in claim 9, wherein the cylinder is vented to atmosphere.
Claim 12
Dependent Claim
20 words
A pulsed liquid jet device as claimed in claim 5, wherein said further means includes means defining an opening therein.
Claim 13
Dependent Claim
22 words
A pulsed liquid jet device as claimed in claim 1, wherein the nozzle means is provided with means deFining radial perforations therein.
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |