Patent US1056967A successfully refreshed from Google Patents.
Patent US3781929A successfully refreshed from Google Patents.
US3781929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stretcher
Assignee: US Philips Corp
•
Filing: 1971-06-22
•
Granted: 1974-01-01
•
Expires: 1991-06-22
Abstract
Abstract A stretcher comprising a frame having at least two parallel upper guides incorporated in said frame on the front and rear sides, respectively, for guiding a belt portion which is capable of supporting a human body, and at least two lower guides likewise incorporated in the frame on the front and rear sides, respectively, for guiding a belt portion which is in contact with the ground. Both ends of the belt portion guided over the upper guides are coupled to a coupling member incorporated in the frame so as to be movable in the direction of movement of the stretcher. The two ends of the belt portion guided over the lower guides are also coupled to said movable member.
Inventors
- 👤 S Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:13
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/1025; A61G7/1032; A61G1/00; A61G1/003; A61G2200/00; A61G2200/30; A61G2200/32
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
189 words
A stretcher comprising a pair of upright side frames, first and second parallel upper guides carried between said side frames on the front and rear respectively of said stretcher, at least two lower guides carried between said side frames on the front and rear of said stretcher, a first belt portion of finite length For supporting a human body guided for movement between said first and second upper guides, a second belt portion of finite length guided for movement between said lower guides in contact with the ground so that when said second belt portion is moved in one direction said stretcher will be propelled along the ground in the opposite direction at an equal speed, a coupling member supported by said frame for movement in the direction of movement of said stretcher, the corresponding ends of said first and second finite belt portions being coupled to said coupling member so that as said coupling member is moved said first and second belt portions will be caused to move in the same direction and at the same speed, and means connected to said coupling member for causing movement thereof.
Claim 2
Dependent Claim
189 words
A stretcher comprising a pair of upright side frames, first and second parallel upper guides carried between said side frames on the front and rear respectively of said stretcher, at least two lower guides carried between said side frames on the front and rear of said stretcher, a first belt portion of finite length For supporting a human body guided for movement between said first and second upper guides, a second belt portion of finite length guided for movement between said lower guides in contact with the ground so that when said second belt portion is moved in one direction said stretcher will be propelled along the ground in the opposite direction at an equal speed, a coupling member supported by said frame for movement in the direction of movement of said stretcher, the corresponding ends of said first and second finite belt portions being coupled to said coupling member so that as said coupling member is moved said first and second belt portions will be caused to move in the same direction and at the same speed, and means connected to said coupling member for causing movement thereof.
Claim 3
Dependent Claim
220 words
A stretcher comprising a pair of upright side frames, first and second parallel upper guides carried between said side frames on the front and rear respectively of said stretcher, at least two lower guides carried between said side frames on the front and rear of said stretcher, a first belt portion of finite length for supporting a human body guided for movement between said first and second upper guides, a second belt portion of finite length guided for movement between said lower guides in contact with the ground so that when said second belt portion is moved in one direction said stretcher will be propelled along the ground in the opposite direction at an equal speed, a coupling member supported by said frame for movement in the direction of movement of said stretcher, the corresponding ends of said first and second finite belt portions being coupled to said coupling member so that as said coupling member is moved said first and second belt portions will be caused to move in the same direction and at the same speed, and means connected to said coupling member for causing movement thereof, said coupling member comprising a pair of rollers, corresponding ends of said first and second belts being connected to each other, said connected ends being guided over one of said rollers.
Claim 4
Dependent Claim
220 words
A stretcher comprising a pair of upright side frames, first and second parallel upper guides carried between said side frames on the front and rear respectively of said stretcher, at least two lower guides carried between said side frames on the front and rear of said stretcher, a first belt portion of finite length for supporting a human body guided for movement between said first and second upper guides, a second belt portion of finite length guided for movement between said lower guides in contact with the ground so that when said second belt portion is moved in one direction said stretcher will be propelled along the ground in the opposite direction at an equal speed, a coupling member supported by said frame for movement in the direction of movement of said stretcher, the corresponding ends of said first and second finite belt portions being coupled to said coupling member so that as said coupling member is moved said first and second belt portions will be caused to move in the same direction and at the same speed, and means connected to said coupling member for causing movement thereof, said coupling member comprising a pair of rollers, corresponding ends of said first and second belts being connected to each other, said connected ends being guided over one of said rollers.
Claim 5
Dependent Claim
210 words
A stretcher comprising a pair of upright side frames, first and second parallel upper guides carried between said side frames on the front and rear respectively of said stretcher, at least two lower guides carried between said side frames on the front and rear of said stretcher, a first belt portion of finite length for supporting a human body guided for movement between said first and second upper guides, a second belt portion of finite length guided for movement between said lower guides in contact with the ground so that when said second belt portion is moved in one direction said stretcher will be propelled along the ground in the opposite direction at an equal speed, a coupling member supported by said frame for movement in the direction of movement of said stretcher, the corresponding ends of said first and second finite belt portions being coupled to said coupling member so that as said coupling member is moved said first and second belt portions will be caud to move in the same direction and at the same speed, and means connected to said coupling member for causing movement thereof, and a guide plate for extending between said first and second upper guides for supporting said first belt portion guided therebetween.
Claim 6
Dependent Claim
210 words
A stretcher comprising a pair of upright side frames, first and second parallel upper guides carried between said side frames on the front and rear respectively of said stretcher, at least two lower guides carried between said side frames on the front and rear of said stretcher, a first belt portion of finite length for supporting a human body guided for movement between said first and second upper guides, a second belt portion of finite length guided for movement between said lower guides in contact with the ground so that when said second belt portion is moved in one direction said stretcher will be propelled along the ground in the opposite direction at an equal speed, a coupling member supported by said frame for movement in the direction of movement of said stretcher, the corresponding ends of said first and second finite belt portions being coupled to said coupling member so that as said coupling member is moved said first and second belt portions will be caud to move in the same direction and at the same speed, and means connected to said coupling member for causing movement thereof, and a guide plate for extending between said first and second upper guides for supporting said first belt portion guided therebetween.
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |