Patent US1236176A successfully refreshed from Google Patents.
Patent US3700072A successfully refreshed from Google Patents.
US3700072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sawhorse with retractable legs
Assignee: Individual
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Filing: 1970-10-23
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Granted: 1972-10-24
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Expires: 1990-10-23
Abstract
Abstract A sawhorse structure comprising a transverse work support member and a pair of legs normally diverging downwardly and outwardly from each end portion of the transverse member, the pairs of legs being adapted to be retracted from the diverging positions in a manner so as to reduce the necessary storage or transportation space of an average size saw horse from approximately 10 cubic feet to approximately 1 1/4 cubic feet. The mechanism for retracting the legs includes a pair of interconnected brackets fixed to each end portion of the transverse member, and pivots connecting one leg to each bracket, a unique application of a pair of yokes associated with each bracket whereby each leg is maintained in either the extended or the retracted position by the pivots and three legs of the pair of yokes, a latch mechanism being employed to lock each leg in either of the retracted or extended positions.
Inventors
- 👤 Maxwell J Lovett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:33
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/34
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
403 words
A sawhorse with retractable legs comprising; A. a generally horizontally disposed transverse work support member; B. four brackets fixed in opposed pairs to said work support member with one pair being positioned adjacent each end thereof, each of said pairs diverging outwardly and downwardly from said support member in a common plane and such bracket having, 1. an outer face, 2. an inner face, 3. bottom and inner flanges extending outwardly of said outer face, and 4. pivot pin means fixed to and extending inwardly from said inner face; C. four legs for respective connection in opposed pairs of brackets, each of said legs having, 1. an upper end, 2. outer and inner faces, and 3. a longitudinal slot therethrough, positioned a predetermined distance inwardly from said upper end, for the reception of said pivot pin means therethrough, said slot having an upper and a lower end; D. retainer means fixed to each of said pivot pin means and loosely bearing against said inner face of each of said legs whereby each of said legs is retained in position on its respective pivot pin with the upper portion of said outer face thereof in bearing engagement against said inner face of said bracket, each of said legs being free to be pivoted on said pivot pins and to be slid longitudinally on said pivot pin a predetermined distance aS determined by the length of said slot; E. a first and a second yoke means fixed to each of said brackets and extending inwardly from the inner face thereof, each of said first and second yoke means providing an open throat sized to generally conform to the cross sectional size of said legs, each of said first yokes being positioned to slidably receive the upper end portion of one of said legs through said throat to hold said leg in an extended position with said pivot pin in contact with said lower end of said slot, each of said second yokes being positioned to slidably receive the upper end portion of one of said legs through said throat to hold said leg in a retracted position with said pivot pin in contact with said lower end of said slot, each of said legs being pivotal between said extended and retracted positions when said leg is slid on said pivot pin until said pivot pin is in contact with said upper end of said slot.
Claim 2
Dependent Claim
403 words
A sawhorse with retractable legs comprising; A. a generally horizontally disposed transverse work support member; B. four brackets fixed in opposed pairs to said work support member with one pair being positioned adjacent each end thereof, each of said pairs diverging outwardly and downwardly from said support member in a common plane and such bracket having, 1. an outer face, 2. an inner face, 3. bottom and inner flanges extending outwardly of said outer face, and 4. pivot pin means fixed to and extending inwardly from said inner face; C. four legs for respective connection in opposed pairs of brackets, each of said legs having, 1. an upper end, 2. outer and inner faces, and 3. a longitudinal slot therethrough, positioned a predetermined distance inwardly from said upper end, for the reception of said pivot pin means therethrough, said slot having an upper and a lower end; D. retainer means fixed to each of said pivot pin means and loosely bearing against said inner face of each of said legs whereby each of said legs is retained in position on its respective pivot pin with the upper portion of said outer face thereof in bearing engagement against said inner face of said bracket, each of said legs being free to be pivoted on said pivot pins and to be slid longitudinally on said pivot pin a predetermined distance aS determined by the length of said slot; E. a first and a second yoke means fixed to each of said brackets and extending inwardly from the inner face thereof, each of said first and second yoke means providing an open throat sized to generally conform to the cross sectional size of said legs, each of said first yokes being positioned to slidably receive the upper end portion of one of said legs through said throat to hold said leg in an extended position with said pivot pin in contact with said lower end of said slot, each of said second yokes being positioned to slidably receive the upper end portion of one of said legs through said throat to hold said leg in a retracted position with said pivot pin in contact with said lower end of said slot, each of said legs being pivotal between said extended and retracted positions when said leg is slid on said pivot pin until said pivot pin is in contact with said upper end of said slot.
Claim 3
Dependent Claim
3 words
an inner face,
Claim 4
Dependent Claim
3 words
an inner face,
Claim 5
Dependent Claim
32 words
A saw horse with retractable legs as defined in claim 1 including latch means whereby each of said legs may be automatically, selectively locked in either of said extended or retracted positions.
Claim 6
Dependent Claim
5 words
outer and inner faces, and
Claim 7
Dependent Claim
5 words
outer and inner faces, and
Claim 8
Dependent Claim
287 words
a longitudinal slot therethrough, positioned a predetermined distance inwardly from said upper end, for the reception of said pivot pin means therethrough, said slot having an upper and a lower end; D. retainer means fixed to each of said pivot pin means and loosely bearing against said inner face of each of said legs whereby each of said legs is retained in position on its respective pivot pin with the upper portion of said outer face thereof in bearing engagement against said inner face of said bracket, each of said legs being free to be pivoted on said pivot pins and to be slid longitudinally on said pivot pin a predetermined distance aS determined by the length of said slot; E. a first and a second yoke means fixed to each of said brackets and extending inwardly from the inner face thereof, each of said first and second yoke means providing an open throat sized to generally conform to the cross sectional size of said legs, each of said first yokes being positioned to slidably receive the upper end portion of one of said legs through said throat to hold said leg in an extended position with said pivot pin in contact with said lower end of said slot, each of said second yokes being positioned to slidably receive the upper end portion of one of said legs through said throat to hold said leg in a retracted position with said pivot pin in contact with said lower end of said slot, each of said legs being pivotal between said extended and retracted positions when said leg is slid on said pivot pin until said pivot pin is in contact with said upper end of said slot.
Claim 9
Dependent Claim
287 words
a longitudinal slot therethrough, positioned a predetermined distance inwardly from said upper end, for the reception of said pivot pin means therethrough, said slot having an upper and a lower end; D. retainer means fixed to each of said pivot pin means and loosely bearing against said inner face of each of said legs whereby each of said legs is retained in position on its respective pivot pin with the upper portion of said outer face thereof in bearing engagement against said inner face of said bracket, each of said legs being free to be pivoted on said pivot pins and to be slid longitudinally on said pivot pin a predetermined distance aS determined by the length of said slot; E. a first and a second yoke means fixed to each of said brackets and extending inwardly from the inner face thereof, each of said first and second yoke means providing an open throat sized to generally conform to the cross sectional size of said legs, each of said first yokes being positioned to slidably receive the upper end portion of one of said legs through said throat to hold said leg in an extended position with said pivot pin in contact with said lower end of said slot, each of said second yokes being positioned to slidably receive the upper end portion of one of said legs through said throat to hold said leg in a retracted position with said pivot pin in contact with said lower end of said slot, each of said legs being pivotal between said extended and retracted positions when said leg is slid on said pivot pin until said pivot pin is in contact with said upper end of said slot.
Claim 10
Dependent Claim
83 words
A saw horse with retractable legs as defined in claim 2 in which each of said latch means comprises a body portion fixed to one of said legs and a spring leaf means fixed to said body portion which is adapted to be engaged over said bottom flange when said leg is in an extended position as over said inner flange when said leg is in a retracted position, said spring leaf being readily, manually releasable to permit said sliding and pivotal movement.
Claim 11
Dependent Claim
11 words
bottom and inner flanges extending outwardly of said outer face, and
Claim 12
Dependent Claim
11 words
bottom and inner flanges extending outwardly of said outer face, and
Claim 13
Dependent Claim
28 words
pivot pin means fixed to and extending inwardly from said inner face; C. four legs for respective connection in opposed pairs of brackets, each of said legs having,
Claim 14
Dependent Claim
28 words
pivot pin means fixed to and extending inwardly from said inner face; C. four legs for respective connection in opposed pairs of brackets, each of said legs having,
Claim 15
Dependent Claim
193 words
A sawhorse with retractable legs as defined in claim 1 in which each of said yokes comprises a first and a second arm and a span connecting the inner ends of said first and second arms with the outer ends of said arms being fixed to said bracket, said first and second yokes being positioned in an angular relationship relative to said legs whereby said first arm of said first yoke acts as a stop means to position said leg in the proper extended position when said pivot pin is in contact with said upper end of said slot, and said first arm of said second yoke acts as a stop means to position said leg in a proper retracted position when said pivot pin is in contact with said upper end of said slot, the upper end of said leg passing clear of said second arms of both the first and second yokes when being pivoted between said extended and retracted positions, and said leg being readily slidable into either of the throats of said first and second yokes when said leg is in contact with their respective first arm stop means.
Claim 16
Dependent Claim
70 words
A saw horse with retractable legs as defined in claim 1 in which said retainer means comprises a washer on each of said pivot pin means loosely bearing against said inner face of each of said legs and a spring retaining ring engaged in an annular groove adjacent the inner end of each of said pivot pin means, said spring retaining ring bearing against the inner face of said washer.
Claim 17
Dependent Claim
25 words
A sawhorse with retractable legs as defined in claim 1 including a face plate and fastening means interconnecting each of said pair of opposed brackets.
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |