US3967360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic jack device
Assignee: Lawrence Peska Associates Inc
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Filing: 1975-07-01
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Granted: 1976-07-06
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Expires: 1995-07-01
Abstract
Abstract A pneumatic jack device is used to extract an agitator from the tube of a washing machine. The device includes an annular split ring member having a pair of closed ends and a chamber therein, wherein the member expands into a split toroidial configuration. A valve extends inwardly through an opening in the annular member, wherein the valve is adapted to receive a pneumatic pressurized line. A mechanism is provided for holding together the closed ends of the annular split member during inflation into the split toroidial configuration.
Inventors
- 👤 Ted W. Nolte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:23
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/02; B25B27/026; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/5383
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A pneumatic jack device, which comprises: a. an agitator having a bottom annular shoulder of a tub of a washing machine; b. an annular split member having a pair of closed ends, distendable surfaces, an opening through one said surface, and a hollow chamber therein, said member inflatable into a split toroidial shaped configuration, said inflated member frictionally engaging a bottom surface of said annular shoulder of said agitator; c. an eyelet affixed to one said end of said annular split member; d. a hook element hingably joined to said other end of said annular split member, said hook element engaging said eyelet to hold said annular split member in said torodial configuration under said annular shoulder of said agitator; e. a valve member having a stem extending inwardly into said opening of said annular split ring member, said stem being externally threaded; f. an annular collar sealing said valve member to said annular split ring member; g. a pressurizing source; and h. a pressurized line threadably engaging said stem and communicating with said pressurizing source.
Claim 2
Dependent Claim
176 words
A pneumatic jack device, which comprises: a. an agitator having a bottom annular shoulder of a tub of a washing machine; b. an annular split member having a pair of closed ends, distendable surfaces, an opening through one said surface, and a hollow chamber therein, said member inflatable into a split toroidial shaped configuration, said inflated member frictionally engaging a bottom surface of said annular shoulder of said agitator; c. an eyelet affixed to one said end of said annular split member; d. a hook element hingably joined to said other end of said annular split member, said hook element engaging said eyelet to hold said annular split member in said torodial configuration under said annular shoulder of said agitator; e. a valve member having a stem extending inwardly into said opening of said annular split ring member, said stem being externally threaded; f. an annular collar sealing said valve member to said annular split ring member; g. a pressurizing source; and h. a pressurized line threadably engaging said stem and communicating with said pressurizing source.
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) | 1979-07-06 | 1980-01-05 | 1980-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-06 | 1984-01-05 | 1984-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-06 | 1988-01-05 | 1988-07-06 | $7700.00 | Window Closed / Lapsed |