US3921952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescoping column assembly
Assignee: Stabilus GmbH
•
Filing: 1974-07-01
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Granted: 1975-11-25
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Expires: 1994-07-01
Abstract
Abstract A column assembly including two telescopically engaged, coaxial column members whose relative axial movement is releasably prevented by an arresting mechanism in one of the column members. An opening transverse to the axis gives access to the releasing member of the arresting mechanism in the interior of the one column member. A unitary bracket passes through the opening and is fastened to the one column member in the interior thereof. A lever having respective arm portions in the column interior and outside also passes through the opening and is secured to the bracket by apivot for movement in a plane passing through the releasing member so that the arm portion in the interior of the column may engage and operate the releasing member when the outer arm portion is moved manually.
Inventors
- 👤 Winfried Wirges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:39
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/20; A47C3/30
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
258 words
A column assembly comprising: a. two telescopically engaged column members having a common axis and axially movable relative to each other; b. releasable arresting means in one of said column members for preventing relative axial movement of said members, said arresting means including a releasing member, 1. said one column member being formed with an opening transverse to said axis and giving access to said releasing member; c. operating means for operating said releasing member, said operating means including 1. an approximately U-shaped, unitary bracket member having two leg portions passing through said opening and a bight portion in the interior of said one column member, said bight portion connecting said leg portions, 2. a lever member having respective arm portions in said interior and outside column member, said lever member passing through said opening, and 3. pivot means securing said lever member to said bracket member for movement in a plane passing through said rEleasing member for engagement of said arm portion in said interior with said releasing member; d. a tubular extension member coaxial with said one column member, 1. a portion of said extension member being axially coextensive with said one column member, 2. said one column member and said portion of said extension member being formed with respective aligned passages transverse to said axis; and e. a fastening member passing inward of said one column member through said passages and engaging said bight portion in said interior for thereby axially securing said extension member to said one column member and to said bracket member.
Claim 2
Dependent Claim
258 words
A column assembly comprising: a. two telescopically engaged column members having a common axis and axially movable relative to each other; b. releasable arresting means in one of said column members for preventing relative axial movement of said members, said arresting means including a releasing member, 1. said one column member being formed with an opening transverse to said axis and giving access to said releasing member; c. operating means for operating said releasing member, said operating means including 1. an approximately U-shaped, unitary bracket member having two leg portions passing through said opening and a bight portion in the interior of said one column member, said bight portion connecting said leg portions, 2. a lever member having respective arm portions in said interior and outside column member, said lever member passing through said opening, and 3. pivot means securing said lever member to said bracket member for movement in a plane passing through said rEleasing member for engagement of said arm portion in said interior with said releasing member; d. a tubular extension member coaxial with said one column member, 1. a portion of said extension member being axially coextensive with said one column member, 2. said one column member and said portion of said extension member being formed with respective aligned passages transverse to said axis; and e. a fastening member passing inward of said one column member through said passages and engaging said bight portion in said interior for thereby axially securing said extension member to said one column member and to said bracket member.
Claim 3
Dependent Claim
31 words
An assembly as set forth in claim 1, wherein said leg portions are oppositely offset from said plane, and said pivot means include a pivot pin member connecting said leg portions.
Claim 4
Dependent Claim
22 words
a lever member having respective arm portions in said interior and outside column member, said lever member passing through said opening, and
Claim 5
Dependent Claim
22 words
a lever member having respective arm portions in said interior and outside column member, said lever member passing through said opening, and
Claim 6
Dependent Claim
61 words
said one column member and said portion of said extension member being formed with respective aligned passages transverse to said axis; and e. a fastening member passing inward of said one column member through said passages and engaging said bight portion in said interior for thereby axially securing said extension member to said one column member and to said bracket member.
Claim 7
Dependent Claim
61 words
said one column member and said portion of said extension member being formed with respective aligned passages transverse to said axis; and e. a fastening member passing inward of said one column member through said passages and engaging said bight portion in said interior for thereby axially securing said extension member to said one column member and to said bracket member.
Claim 8
Dependent Claim
44 words
pivot means securing said lever member to said bracket member for movement in a plane passing through said rEleasing member for engagement of said arm portion in said interior with said releasing member; d. a tubular extension member coaxial with said one column member,
Claim 9
Dependent Claim
44 words
pivot means securing said lever member to said bracket member for movement in a plane passing through said rEleasing member for engagement of said arm portion in said interior with said releasing member; d. a tubular extension member coaxial with said one column member,
Claim 10
Dependent Claim
30 words
An assembly as set forth in claim 2, wherein said fastening member is externally threaded, said bight portion being formed with an internally threaded bore engaged by said fastening member.
Claim 11
Dependent Claim
25 words
An assembly as set forth in claim 3, wherein said bight portion has an outer face conformingly engaging said portion of said one column member.
Claim 12
Dependent Claim
45 words
An assembly as set forth in claim 2, wherein said portion of said extension member is formed with an aperture therethrough transverse to said common axis, said bracket member passing through said aperture and thereby further securing said extension member to said one column member.
Claim 13
Dependent Claim
30 words
An assembly as set forth in claim 5, wherein said one column member is tubular, said axially coextensive portion of said extension member being received in said one column member.
Claim 14
Dependent Claim
51 words
An assembly as set forth in claim 6, wherein said extension member has an annular shoulder, and said one column member has an annular end face transverse to said axis, said shoulder axially abutting against said end face and thereby limiting movement of said extension member inward of said column member.
Claim 15
Dependent Claim
47 words
An assembly as set forth in claim 7, further comprising a plug member axially secured in said interior in a position axially spaced from said bracket member in a direction away from said extension member, said releasing member being mounted on said plug member for axial movement.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |