Patent US3572819A successfully refreshed from Google Patents.
US3572819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enclosed guard canopy for tractors
Assignee: TUBE LOK PRODUCTS
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Filing: 1969-04-14
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Granted: 1971-03-30
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Expires: 1989-04-14
Abstract
Abstract An enclosed guard canopy for tractors comprises a supporting guard frame defining an operator''s cab having side openings. Sheet metal panels are hung in the openings by being secured to the guard members only. Resilient mountings mount the guard members on the tractor and flexible resilient sealing strips seal the space between the unattached lower margin of the panels and the top of the tractor. The operator in the cab thus is protected from vibration, noise and dirt and the cab structure is protected from working stresses.
Inventors
- 👤 James C Moore
- 👤 Milton K Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:38
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/11
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
122 words
An enclosed guard canopy for tractors comprising: a. a plurality of interconnected vertical and horizontal structural guard members defining an operator''s cab having at least one side opening; b. flexible mounting means mounting at least some of the vertical guard members on the tractor in cab-forming relation; c. panel means dimensioned for mounting in the opening: d. panel securing means securing the panel means to the guard members only; e. the panel means thereby being hung from the guard members with its lower margin spaced from the tractor; and f. flexible sealing strip means connected to the lower margin of the panel means, bearing against the upper surface of the tractor, and sealing the space between the panel margin and the tractor.
Claim 2
Dependent Claim
122 words
An enclosed guard canopy for tractors comprising: a. a plurality of interconnected vertical and horizontal structural guard members defining an operator''s cab having at least one side opening; b. flexible mounting means mounting at least some of the vertical guard members on the tractor in cab-forming relation; c. panel means dimensioned for mounting in the opening: d. panel securing means securing the panel means to the guard members only; e. the panel means thereby being hung from the guard members with its lower margin spaced from the tractor; and f. flexible sealing strip means connected to the lower margin of the panel means, bearing against the upper surface of the tractor, and sealing the space between the panel margin and the tractor.
Claim 3
Dependent Claim
150 words
An enclosed guard canopy for tractors, comprising: a. a plurality of interconnected vertical and horizontal structural guard members defining an operator''s cab having at least one side opening; b. mounting means for mounting the guard members on the tractor in cab-forming relation; c. panel means dimensioned for mounting in the opening; d. panel securing means for securing the panel means to the guard members only, the Panel member thereby being hung from the guard members with its lower margin being spaced from the tractor; and e. resilient strip means connected to the lower margin of the panel and sealing the space between said margin and the tractor, the sealing strip means comprising a flexibly resilient strip of rubber having a base adherently united to the panel margin and an outer portion bent outwardly with respect to the interior of the cab and bearing against the upper surface of the tractor.
Claim 4
Dependent Claim
150 words
An enclosed guard canopy for tractors, comprising: a. a plurality of interconnected vertical and horizontal structural guard members defining an operator''s cab having at least one side opening; b. mounting means for mounting the guard members on the tractor in cab-forming relation; c. panel means dimensioned for mounting in the opening; d. panel securing means for securing the panel means to the guard members only, the Panel member thereby being hung from the guard members with its lower margin being spaced from the tractor; and e. resilient strip means connected to the lower margin of the panel and sealing the space between said margin and the tractor, the sealing strip means comprising a flexibly resilient strip of rubber having a base adherently united to the panel margin and an outer portion bent outwardly with respect to the interior of the cab and bearing against the upper surface of the tractor.
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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |