Patent US3608717A successfully refreshed from Google Patents.
Patent US3805359A successfully refreshed from Google Patents.
US3805359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sleeve removing device
Assignee: Individual
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Filing: 1972-09-08
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Granted: 1974-04-23
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Expires: 1992-09-08
Abstract
Abstract A device for removing sleeves or cylinder liners from internal combustion engines, and particularly diesel engines built by General Motors Corporation, which includes a hollow, springloaded cylinder adapted to receive a plunger, the plunger and cylinder having a rod running through the interior thereof, which rod is adapted to engage the cylinder liner and facilitate removal of the liner from the cylinder. The device is placed inside the cylinder and when the rod is in engagement with the liner, the engine piston is caused to rise, contact the sleeve removing device, and continue upward, thereby forcing the sleeve removing device and cylinder liner to the top of the cylinder.
Inventors
- 👤 N Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:10
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/02; B25B27/06; B25B27/064; F; F02; F02B; F02B3/00; F02B3/06; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53987
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
171 words
A device for removing cylinder sleeves in internal combustion engines which comprises: a. A receiving cylinder carrying a receiving cylinder cap at one end thereof and having a hollow interior and an aperture communicating with said hollow interior; b. A spring inside said hollow interior; c. A plunger fitted with a slot and a plunger cap, one end of said plunger being concentrically inside said hollow interior against the bias of said spring and said slot registering with said aperture when said spring is depressed by slidable displacement of said plunger inside said receiving cylinder; d. A sleeve engaging rod positioned in the interior of said receiving cylinder and said plunger and projecting from the end of said receiving cylinder cap, said rod being slidably positioned inside said plunger and said plunger cap; and e. A pin traversing said aperture and said slot when said aperture and said slot are in registration to limit the travel of said plunger with respect to said receiving cylinder against the bias of said spring.
Claim 2
Independent Claim
171 words
A device for removing cylinder sleeves in internal combustion engines which comprises: a. A receiving cylinder carrying a receiving cylinder cap at one end thereof and having a hollow interior and an aperture communicating with said hollow interior; b. A spring inside said hollow interior; c. A plunger fitted with a slot and a plunger cap, one end of said plunger being concentrically inside said hollow interior against the bias of said spring and said slot registering with said aperture when said spring is depressed by slidable displacement of said plunger inside said receiving cylinder; d. A sleeve engaging rod positioned in the interior of said receiving cylinder and said plunger and projecting from the end of said receiving cylinder cap, said rod being slidably positioned inside said plunger and said plunger cap; and e. A pin traversing said aperture and said slot when said aperture and said slot are in registration to limit the travel of said plunger with respect to said receiving cylinder against the bias of said spring.
Claim 3
Dependent Claim
28 words
The device of claim 1 further including: a. means for preventing travel of said sleeve engaging rod with respect to said receiving cylinder and said receiving cylinder cap.
Claim 4
Dependent Claim
30 words
The device of claim 2 wherein said means for preventing travel of said sleeve engaging rod with reSpect to said receiving cylinder and said receiving cylinder cap is a pin.
Claim 5
Dependent Claim
43 words
The device of claim 2 wherein: a. said means for preventing travel of said sleeve engaging rod with respect to said receiving cylinder and said receiving cylinder cap is a pin, and b. said receiving cylinder is fitted with a receiving cylinder lip.
Claim 6
Dependent Claim
26 words
The device of claim 4 wherein said receiving cylinder cap, said receiving cylinder lip and said plunger cap are flattened at the top and bottom thereof.
References Cited (Backward Citations)
US3062381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-22 | 1977-10-22 | 1978-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-22 | 1981-10-22 | 1982-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-22 | 1985-10-22 | 1986-04-23 | $7700.00 | Window Closed / Lapsed |