Patent US3565212A successfully refreshed from Google Patents.
US3565212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination beam support and latch means for walk-through platform
Assignee: Up Right Inc
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Filing: 1969-11-14
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Granted: 1971-02-23
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Expires: 1989-11-14
Abstract
Abstract A platform, for scaffold use, having fixed and hinged flooring members mounted on a pair of beam supports, and in which the hinged flooring member carries a rigid latch member that wedges the beam supports apart as the hinged flooring member is closed and then allows the beam supports to spring back into gripped engagement with the latch member.
Inventors
- 👤 Wallace J S Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:57
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/15; E04G1/154; E04G2001/155
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
195 words
A platform comprising: a. first and second elongated beam support members; b. a first flooring member supported by said beam support members and extending from adjacent ends thereof towards the other ends thereof; c. means for securing said adjacent ends of said beam support members to a structural member; d. means restraining said beam support members from relative movement in the vicinity of said first flooring member; e. a second flooring member supported on said beam support members and extending from the other ends thereof to said first flooring member; f. means mounting said second flooring member on said first beam support member for swinging movement of said flooring member into and out of engagement with said second beam support member; g. means for securing said other ends of said beam support members to a structural member so as to allow said other ends to move towards and away from each other; and h. latch means on said second flooring member movable into engagement with said second beam support member to wedge said first and second beam support members apart as said second flooring member is moved into engagement with said second beam support member.
Claim 2
Dependent Claim
195 words
A platform comprising: a. first and second elongated beam support members; b. a first flooring member supported by said beam support members and extending from adjacent ends thereof towards the other ends thereof; c. means for securing said adjacent ends of said beam support members to a structural member; d. means restraining said beam support members from relative movement in the vicinity of said first flooring member; e. a second flooring member supported on said beam support members and extending from the other ends thereof to said first flooring member; f. means mounting said second flooring member on said first beam support member for swinging movement of said flooring member into and out of engagement with said second beam support member; g. means for securing said other ends of said beam support members to a structural member so as to allow said other ends to move towards and away from each other; and h. latch means on said second flooring member movable into engagement with said second beam support member to wedge said first and second beam support members apart as said second flooring member is moved into engagement with said second beam support member.
Claim 3
Dependent Claim
40 words
A platform as set forth in claim 1, wherein said latch means also allows said first and second beam support members to move together from the wedged-apart position thereof when said second flooring member engages said second beam support member.
Claim 4
Dependent Claim
69 words
A platform as set forth in claim 1, wherein said means mounting said second flooring member on said first beam support member comprises a rigid brace secured to said second flooring member, which brace is pivotally mounted at one end thereof on said first beam support member and extends towards said second beam support member, and wherein said latch means is formed by the other end of said brace.
Claim 5
Dependent Claim
63 words
A platform as set forth in claim 3, wherein said second beam support member is circular in outer cross section and wherein said other end of said brace has an inclined face at an acute angle to said second flooring member and terminating at a distance normal to said flooring member which is greater than the radius of said second beam support member.
References Cited (Backward Citations)
US3454131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |