Patent US4034669A successfully refreshed from Google Patents.
US4134474A
Expired / Lapsed
US
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Observation stand
Assignee: SPX CORPORATION A CORPORATION OF DE
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Filing: 1978-01-31
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Granted: 1979-01-16
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Expires: 1998-01-31
Abstract
Abstract A portable observation stand for mounting on trees having a wide range of diameters. The stand includes a frame, which is detachably secured to a selected tree, and an articulated ladder which may be retained in a climbing position, for entry by an outdoorsman, and in a base position to provide support for a floor during use. A U-shaped rail may be mounted on the frame, and a shroud which encloses the stand may be secured to the rail.
Inventors
- 👤 Harold L. Stavenau
- 👤 Reuben W. Kaplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:31
CPC Classifications
E; E06; E06C; E06C1/00; E06C1/52; A; A01; A01M; A01M31/00; A01M31/02; E06C1/02; E06C1/38; E06C1/39
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
102 words
A stand for mounting on a tree comprising: a frame having a front side, a rear side, an upper section, a middle section and a lower section; mounting structure for securing the frame to a tree, said mounting structure extending outwardly from the rear side of the frame; an articulated ladder pivotably secured to the lower section of the frame, said ladder mounted for rotation between a climbing position extending vertically and downwardly from the frame, and a base-extending position extending horizontally and outwardly from the front side of the frame; and means for retaining the articulated ladder in the base-extending position.
Claim 2
Dependent Claim
102 words
A stand for mounting on a tree comprising: a frame having a front side, a rear side, an upper section, a middle section and a lower section; mounting structure for securing the frame to a tree, said mounting structure extending outwardly from the rear side of the frame; an articulated ladder pivotably secured to the lower section of the frame, said ladder mounted for rotation between a climbing position extending vertically and downwardly from the frame, and a base-extending position extending horizontally and outwardly from the front side of the frame; and means for retaining the articulated ladder in the base-extending position.
Claim 3
Dependent Claim
82 words
The tree stand of claim 1 wherein the mounting structure includes: an upper band detachably secured to the upper end of the frame and adapted to encircle a tree; a V-shaped bracket secured to the lower section of the frame, opening outwardly from the rear side; a flexible member detachably secured to said lower section of the frame forming a girdle about the tree with the second V-shaped bracket; and means for drawing the flexible member into tight relationship with the tree.
Claim 4
Dependent Claim
18 words
The tree stand of claim 1 wherein ther rigid band and the lower V-shaped bracket include tree-engaging studs.
Claim 5
Dependent Claim
88 words
The tree stand of claim 1 wherein the articulated ladder includes: an upper section having an upper and a lower end formed by two horizontally spaced-apart supports secured together by a plurality of vertically spaced-apart rungs; a lower section having an upper and a lower end formed by two horizontally spaced-apart supports secured together by a plurality of vertically spaced-apart rungs; pins connecting the lower end of the upper section for rotation about the upper end of the lower section; and a floor secured to said lower section.
Claim 6
Dependent Claim
13 words
The tree stand of claim 4 wherein the floor is of sectional construction.
Claim 7
Dependent Claim
19 words
The tree stand of claim 1 further including: a seat pivotably secured to the middle section of the frame.
Claim 8
Dependent Claim
26 words
The tree stand of claim 1 further including: a U-shaped rail secured to the upper section of the frame and extending from the front side thereof.
Claim 9
Dependent Claim
14 words
The tree stand of claim 7 wherein a shroud is mounted on the rail.
Claim 10
Dependent Claim
23 words
The tree stand of claim 1 further including: means for moving said articulated ladder between the vertically extending position and the base position.
Claim 11
Dependent Claim
26 words
The tree stand of claim 1 wherein the retaining means is two spaced-apart straps secured to the upper section of the frame and to the base.
Claim 12
Dependent Claim
45 words
The tree stand of claim 1 wherein said mounting structure includes: vertically spaced-apart and opposing tree-engaging studs positioned so that said studs engage the tree as a result of the weight of an outdoorsman in the stand when said stand is in its base position.
Claim 13
Dependent Claim
221 words
A stand for mounting on a tree comprising: a frame having a front side, a rear side, an upper section, a middle section and a lower section; mounting structure for securing the frame to a tree including an upper band detachably secured to the upper end of the frame and adapted to encircle a tree, said upper band having tree-engaging studs; and a V-shaped bracket secured to the lower section of the frame, opening outwardly from the rear side, said V-shaped bracket having tree-engaging studs; an articulated ladder pivotably secured to the lower section of the frame, said ladder mounted for rotation between a climbing position extending vertically and downwardly from the frame and a base position extending horizontally and outwardly from the front side of the frame, said articulated ladder including an upper section having an upper end and a lower end formed by two horizontally spaced-apart support secured together by a plurality of vertically spaced rungs, a lower section having an upper and a lower end formed by two horizontally spaced-apart supports secured together by a plurality of vertically spaced-apart rungs, pins connecting the lower end of the upper section for rotation about the upper end of said lower section, and a floor secured to said lower section; and means for retaining the articulated ladder in the base position.
Claim 14
Dependent Claim
221 words
A stand for mounting on a tree comprising: a frame having a front side, a rear side, an upper section, a middle section and a lower section; mounting structure for securing the frame to a tree including an upper band detachably secured to the upper end of the frame and adapted to encircle a tree, said upper band having tree-engaging studs; and a V-shaped bracket secured to the lower section of the frame, opening outwardly from the rear side, said V-shaped bracket having tree-engaging studs; an articulated ladder pivotably secured to the lower section of the frame, said ladder mounted for rotation between a climbing position extending vertically and downwardly from the frame and a base position extending horizontally and outwardly from the front side of the frame, said articulated ladder including an upper section having an upper end and a lower end formed by two horizontally spaced-apart support secured together by a plurality of vertically spaced rungs, a lower section having an upper and a lower end formed by two horizontally spaced-apart supports secured together by a plurality of vertically spaced-apart rungs, pins connecting the lower end of the upper section for rotation about the upper end of said lower section, and a floor secured to said lower section; and means for retaining the articulated ladder in the base position.
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) | 1982-01-15 | 1982-07-17 | 1983-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-15 | 1986-07-17 | 1987-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-15 | 1990-07-17 | 1991-01-16 | $7700.00 | Window Closed / Lapsed |