US4542882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air jack for use with a vehicle exhaust system
Assignee: Individual
•
Filing: 1984-04-19
•
Granted: 1985-09-24
•
Expires: 2004-04-19
Abstract
Abstract An air jack for use in raising vehicles from the ground comprising an air bag, a hose member which is adapted to connect the exhaust system of a vehicle to the air bag and a valve for preventing the release of exhaust gases from the air bag after it has been inflated.
Inventors
- 👤 David Choe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:28
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/24; B66F3/25; B66F3/35
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
116 words
An air jack comprising: a hose member, containing a connecting means disposed at one end thereof, an inflatable member provided with a support plate containing a plurality of spikes attached thereto, said inflatable member being provided with a socket connector, whereby the connecting means on said hose member can be secured to the socket connector by a simple twisting action, adapter means disposed at the other end of the hose member for attaching said end of said hose member to the exhaust system of a vehicle, and back valve means disposed in said hose member for preventing a back flow of gas from said inflatable member after said gas has been introduced into said inflatable member.
Claim 2
Dependent Claim
116 words
An air jack comprising: a hose member, containing a connecting means disposed at one end thereof, an inflatable member provided with a support plate containing a plurality of spikes attached thereto, said inflatable member being provided with a socket connector, whereby the connecting means on said hose member can be secured to the socket connector by a simple twisting action, adapter means disposed at the other end of the hose member for attaching said end of said hose member to the exhaust system of a vehicle, and back valve means disposed in said hose member for preventing a back flow of gas from said inflatable member after said gas has been introduced into said inflatable member.
Claim 3
Dependent Claim
14 words
The air jack of claim 1 wherein the inflatable member is an air bag.
Claim 4
Dependent Claim
14 words
The air jack of claim 1 wherein the adapter means has a cone-shaped configuration.
Claim 5
Dependent Claim
15 words
The air jack of claim 1, wherein the spikes are made of a hard rubber.
Claim 6
Dependent Claim
14 words
The air jack of claim 1, wherein the spikes are made of metallic material.
Claim 7
Dependent Claim
20 words
The air jack of claim 1, wherein the spikes are disposed in a uniform circular manner on the support plate.
References Cited (Backward Citations)
US2495092A
Cited
DE2354388A1
Cited
US4061310A
Cited
US4222549A
Cited
US4203577A
Cited
US4218043A
Cited
US4294141A
Cited
US4477109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-23 | 1989-03-25 | 1989-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-23 | 1993-03-25 | 1993-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-23 | 1997-03-25 | 1997-09-24 | $7700.00 | Window Closed / Lapsed |