Patent US3939820A successfully refreshed from Google Patents.
US5584469A
Expired / Lapsed
US
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Handrail assembly
Assignee: Kee Klamp Ltd
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Filing: 1993-08-03
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Granted: 1996-12-17
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Expires: 2013-08-03
Abstract
Abstract A handrail assembly comprises a substantially continuous length of handrail having therein a longitudinally extending groove and a connector device (12,72) which enables a support post to be secured in a selected orientation relative to the length of the handrail. The connector device comprises a first member (72) which is an insert slidable lengthwise of the handrail in the longitudinally extending groove in the handrail (70), a second member (12) adjustably associated with the first member by a retention assembly (48), the first member having formed in an external surface thereof a recess (30') of part spherical shape, the second member (12) comprising an elongate body having a hollow head portion (40) and a tubular tail portion (43), these portions being aligned with one another along the longitudinal axis of the body. The head portion (40) of the second member comprises a part-spherical outer surface (41) which conforms with the shape of the recess (30') in the first member. The head portion provides an adjustment slot (46), the retention assembly (48) being arranged to extend at least in part through this slot (46) and be adjustable such that the first and second members may be either restrained against relative movement or be free for relative pivotal movement upon relative sliding movement of the confronting part spherical surfaces (30', 41).
Inventors
- 👤 David Goodwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:15
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/18; E04F11/181; E04F11/1817; E04F11/1834; E04F2011/1819; E04F2011/1821
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
234 words
In a handrail assembly comprising a substantially continuous length of handrail having therein a longitudinally extending groove and a connector device (12,72) which enables a support post to be secured in a selected orientation relative to the length of the handrail; the improvement wherein the connector device comprises a first member (72) which is an insert slidable lengthwise of the handrail in said longitudinally extending groove in the handrail (70), a second member (12) adjustably associated with the first member by means of a retention assembly (48), the first member having formed in an external surface thereof a recess (30') of part spherical shape, the second member (12) comprising a substantially elongate body having a hollow head portion (40) and a substantially tubular tail portion (43), said portions being substantially aligned with one another along the longitudinal axis of the body, the head portion (40) of the second member comprising a part spherical outer surface (41) which conforms substantially with the shape of the recess (30') in the first member, said head portion being shaped to provide an adjustment slot (46), the retention assembly (48) being arranged to extend at least in part through said slot (46) and be adjustable such that the first and second members may be either restrained against relative movement or be substantially free for relative pivotal movement upon relative sliding movement of said confronting part spherical surfaces (30', 40).
Claim 2
Dependent Claim
234 words
In a handrail assembly comprising a substantially continuous length of handrail having therein a longitudinally extending groove and a connector device (12,72) which enables a support post to be secured in a selected orientation relative to the length of the handrail; the improvement wherein the connector device comprises a first member (72) which is an insert slidable lengthwise of the handrail in said longitudinally extending groove in the handrail (70), a second member (12) adjustably associated with the first member by means of a retention assembly (48), the first member having formed in an external surface thereof a recess (30') of part spherical shape, the second member (12) comprising a substantially elongate body having a hollow head portion (40) and a substantially tubular tail portion (43), said portions being substantially aligned with one another along the longitudinal axis of the body, the head portion (40) of the second member comprising a part spherical outer surface (41) which conforms substantially with the shape of the recess (30') in the first member, said head portion being shaped to provide an adjustment slot (46), the retention assembly (48) being arranged to extend at least in part through said slot (46) and be adjustable such that the first and second members may be either restrained against relative movement or be substantially free for relative pivotal movement upon relative sliding movement of said confronting part spherical surfaces (30', 40).
Claim 3
Dependent Claim
26 words
A handrail assembly according to claim 1, wherein said slot (46) extends through at least 30° relative to the longitudinal axis (47) of the second member.
Claim 4
Dependent Claim
26 words
A handrail assembly according to claim 1, wherein said slot (46) extends substantially only to one side of the longitudinal axis (47) of the second member.
Claim 5
Dependent Claim
29 words
A handrail assembly according to claim 1, wherein the part spherical recess (30'), as considered in cross-section, subtends an angle of at least 80° about its center of curvature.
Claim 6
Dependent Claim
48 words
A handrail assembly, according to claim 1, wherein the hollow head portion (40) of the second member has a part spherical internal surface (42) which is dimensioned such that the wall thickness of the head portion, at least in the vicinity of the slot (46), is substantially uniform.
Claim 7
Dependent Claim
31 words
A handrail assembly according to claim 1, wherein the tail portion (43) of the second member is adapted for location in and to abut the end of a support post (63).
Claim 8
Dependent Claim
28 words
A handrail assembly according to claim 1, wherein the axial length of the tail portion (43) is less than twice the axial length of the head portion (40).
Claim 9
Dependent Claim
28 words
A handrail assembly according to claim 7, wherein the axial length of the tail portion is less than or equal to the axial length of the head portion.
Claim 10
Dependent Claim
17 words
A handrail assembly according claim 1, wherein said head portion (40) is of a substantially semi-spherical shape.
Claim 11
Dependent Claim
31 words
A handrail assembly according to claim 1, wherein the retention assembly has a head portion adapted to conform to the internal surface of the hollow head portion of the second member.
Claim 12
Dependent Claim
68 words
A handrail assembly according to claim 1, wherein the retention assembly has a head portion (50) which is spaced from the internal surface (42) of the hollow head portion (50) by an interposed washer (51) having a first surface which conforms to the underside of the head portion of the retention assembly and a second surface which conforms to the internal surface (42) of said hollow head portion.
Claim 13
Dependent Claim
38 words
A handrail assembly according to claim 1, wherein a washer (35) of resilient material is provided in a base region of the recess (30) whereby it may provide resistance to relative movement of said first and second members.
Claim 14
Dependent Claim
25 words
A handrail assembly according to claim 1, wherein said first member (72) of the connector device has an outer surface region which is part cylindrical.
Claim 15
Dependent Claim
20 words
A handrail assembly according to claim 1, which further includes a support post (63) secured to the second member (12).
Claim 16
Dependent Claim
39 words
A handrail assembly according to claim 14, wherein the handrail (70) and support post (63) are each of a kind having a longitudinal or major axis and the connector device is orientated such that said axes intersect one another.
Claim 17
Dependent Claim
38 words
A handrail assembly according to claim 14, wherein the handrail (70) and support post (63) are each of a kind having a longitudinal or major axis and the connector device is orientated such that said axes are offset.
Claim 18
Dependent Claim
61 words
A handrail assembly according to claim 14, wherein the handrail (70) comprises a curved portion and is secured to a corner post (63) at a position where the handrail is curved as viewed vertically in plan, the connector device being orientated such that the longitudinal axis of the post (63) is offset locally relative to the major axis of the handrail.
Claim 19
Dependent Claim
32 words
A handrail assembly according to claim 1, further comprising means for selectively locking the insert against axial movement in the direction of the length of the longitudinally extending groove of the handrail.
Claim 20
Dependent Claim
32 words
A handrail assembly according to claim 1, wherein the insert has formations thereon that interlock with complementary formations within the handrail groove to guide the insert in sliding movement in the groove.
Claim 21
Dependent Claim
22 words
A handrail assembly according to claim 1, wherein parts of the groove not occupied by an insert are filled by spacer covers.
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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) | 1999-12-17 | 2000-06-17 | 2000-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-17 | 2004-06-17 | 2004-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-17 | 2008-06-17 | 2008-12-17 | $7700.00 | Window Closed / Lapsed |