US4895332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-slip grab rail
Assignee: HANSEN INTERNATIONAL
•
Filing: 1988-09-06
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Granted: 1990-01-23
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Expires: 2008-09-06
Abstract
Abstract An anti-slip grab rail and grab rail assembly, the grab rail providing improved gripping surfaces which, in the preferred embodiments, are formed by a plurality of exposed surfaces of a rigid elongate bar alternating with a plurality of elastomeric members extending longitudinally of the bar. The elastomeric members preferably take the form of inserts secured within cavities that extend longitudinally of the bar at the surface of the bar. The inserts may be secured within the cavities by aligning the inserts adjacent to the cavities and pushing them transversely into the cavities such that the inserts snap into place and are retained by an interference fit with a portion of a structure of the rail. Improved handling, shipping and strength characteristics are attained by manufacturing and shipping the grab rails in comparatively short lengths of four feet or less and by providing key and key-receiving openings in the grab rail and mounting hardware therefor, preferably at both ends of the grab rail, so as to prevent a grab rail from rotating about a longitudinal axis thereof.
Inventors
- 👤 Randall C. Hansen
- 👤 Gilbert H. Krahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:03
CPC Classifications
A; A47; A47K; A47K3/00; A47K3/001; A47K3/003
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
156 words
A grab rail mounted to a support surface, said grab rail comprising: a rigid elongate bar having formed therein at least two outer cavities opening transversely outwardly of said bar; at least two elastomeric inserts respectively disposed in said outer cavities and extending transversely outwardly at least to a location proximate an exposed surface of said bar, said at least two inserts and at least one exposed surface of said bar collectively forming gripping surfaces disposed so as to be contacted by the hand of a user who has gripped the grab rail; and a mounting stanchion coupled to the bar and secured to the mounting surface; said bar oriented in said stanchion such that at least one of said inserts is interposed between the bar and the support surface to provide an anti-slip surface when the user grips the bar with at least part of the hand extending between the bar and the support surface.
Claim 2
Dependent Claim
156 words
A grab rail mounted to a support surface, said grab rail comprising: a rigid elongate bar having formed therein at least two outer cavities opening transversely outwardly of said bar; at least two elastomeric inserts respectively disposed in said outer cavities and extending transversely outwardly at least to a location proximate an exposed surface of said bar, said at least two inserts and at least one exposed surface of said bar collectively forming gripping surfaces disposed so as to be contacted by the hand of a user who has gripped the grab rail; and a mounting stanchion coupled to the bar and secured to the mounting surface; said bar oriented in said stanchion such that at least one of said inserts is interposed between the bar and the support surface to provide an anti-slip surface when the user grips the bar with at least part of the hand extending between the bar and the support surface.
Claim 3
Dependent Claim
26 words
A grab rail according to claim 1, at least one of said inserts extending transversely outwardly to a location beyond an exposed surface of said bar.
Claim 4
Dependent Claim
71 words
A grab rail according to claim 1 wherein the bar defines three outer cavities, each receiving a respective one of the inserts, wherein the three outer cavities are disposed symmetrically about the bar, wherein the bar defines a six-way symmetrical central cavity, and wherein the stanchion defines a three-way symmetrical key shaped to fit into the central opening in six separate rotational orientations of the bart with respect to the stanchion.
Claim 5
Dependent Claim
28 words
A grab rail according to claim 1 wherein at least two of said inserts are disposed on the bar to face the support surface, at least in part.
Claim 6
Dependent Claim
33 words
A grab rail according to claim 1, said bar and at least one of said inserts comprising interfering securing means substantially securing said insert from exiting an outer cavity in a transverse direction.
Claim 7
Dependent Claim
49 words
A grab rail according to claim 5, said bar forming a constricted opening of said outer cavity such that a distance across said opening is less than a distance across said outer cavity, taken in substantially the same direction and at a location transversely inwardly of said constricted opening.
Claim 8
Dependent Claim
64 words
A grab rail according to claim 5, one of said bar and said at least one insert having an inset formed therein, said inset being defined in part by a restraining surface, the other of said bar and said insert forming a protrusion received in said inset and cooperating with said restraining surface, said interfering securing means comprising said restraining surface and said protrusion.
Claim 9
Dependent Claim
24 words
A grab rail according to claim 1, at least one of said inserts being disposed in two of said outer cavities and extending therebetween.
Claim 10
Dependent Claim
25 words
A grab rail according to claim 8, said at least one insert extending between said two outer cavities in a perimetric direction of said bar.
Claim 11
Dependent Claim
48 words
A grab rail according to claim 8, said bar comprising a support surface between said two outer cavities, said at least one insert comprising a support surface in contact with said support surface of said bar over substantially the entire extent of said support surface of said bar.
Claim 12
Dependent Claim
22 words
A grab rail according to claim 8, said at least one insert comprising two legs respectively disposed in said two outer cavities.
Claim 13
Dependent Claim
39 words
A grab rail according to claim 11, said bar and at least one of said legs comprising interfering securing means substantially securing said at least one leg against exiting transversely from the outer cavity in which it is disposed.
Claim 14
Dependent Claim
21 words
A grab rail according to claim 12 wherein each of said legs is oriented substantially radially with respect to said bar.
Claim 15
Dependent Claim
16 words
A grab rail according to claim 1, said outer cavities extending substantially longitudinally of said bar.
Claim 16
Dependent Claim
24 words
A grab rail according to claim 14, at least one of said outer cavities opening into at least one end face of said bar.
Claim 17
Dependent Claim
35 words
A grab rail according to claim 14, said and at least one of said inserts being configured such that said insert may be separated from said bar by sliding said insert longitudinally of said bar.
Claim 18
Dependent Claim
32 words
A grab rail according to claim 16, said bar and at least one of said inserts comprising securing means substantially securing said insert against exiting an outer cavity in a transverse direction.
Claim 19
Dependent Claim
22 words
A grab rail according to claim 17, a transverse cross-section of said bar being substantially uniform over substantially the entire length thereof.
Claim 20
Dependent Claim
23 words
A grab rail according to claim 16, said outer cavities extending substantially longitudinally of said bar over the entire length of said bar.
Claim 21
Dependent Claim
22 words
A grab rail according to claim 19, said inserts extending substantially longitudinally of said bar over the entire length of said bar.
Claim 22
Dependent Claim
22 words
A grab rail according to claim 20, a transverse cross-section of said bar being substantially uniform over substantially the entire length thereof.
Claim 23
Dependent Claim
222 words
A grab rail assembly comprising a grab rail and mounting hardware therefor, said grab rail comprising a rigid elongate bar having formed therein at least two outer cavities opening transversely outwardly of said bar and at least two elastomeric inserts, each disposed in a respective one of said outer cavities, said inserts extending transversely outwardly at least to a location proximate an exposed surface of said bar, said inserts and at least one exposed surface of said bar collectively forming gripping surfaces disposed so as to be contacted by the hand of a user who has gripped the grab rail, said mounting hardware comprising at least one mount for receiving an end of said grab rail and for fixing said grab rail at a desired location, said grab rail and said at least one mount comprising at least one key for reception in at least on key-receiving opening for preventing said grab rail from rotating about a longitudinal axis thereof; said mount defining a mounting surface adapted to bear against a support surface; said bar oriented in said mount such that at least one of the inserts is interposed between the bar and the mounting surface to provide an anti-slip surface when the user grips the bar with at least part of the hand extending between the bar and the support surface.
Claim 24
Dependent Claim
222 words
A grab rail assembly comprising a grab rail and mounting hardware therefor, said grab rail comprising a rigid elongate bar having formed therein at least two outer cavities opening transversely outwardly of said bar and at least two elastomeric inserts, each disposed in a respective one of said outer cavities, said inserts extending transversely outwardly at least to a location proximate an exposed surface of said bar, said inserts and at least one exposed surface of said bar collectively forming gripping surfaces disposed so as to be contacted by the hand of a user who has gripped the grab rail, said mounting hardware comprising at least one mount for receiving an end of said grab rail and for fixing said grab rail at a desired location, said grab rail and said at least one mount comprising at least one key for reception in at least on key-receiving opening for preventing said grab rail from rotating about a longitudinal axis thereof; said mount defining a mounting surface adapted to bear against a support surface; said bar oriented in said mount such that at least one of the inserts is interposed between the bar and the mounting surface to provide an anti-slip surface when the user grips the bar with at least part of the hand extending between the bar and the support surface.
Claim 25
Dependent Claim
76 words
A grab rail assembly according to claim 22, comprising a second grab rail and mounting hardware interposed between the first and second grab rails, said mounting hardware comprising means for affixing said first and second grab rails at desired locations, said mounting hardware and said first and second grab rails comprising at least two keys for reception in at least two key-receiving openings for preventing said first and second rails from rotating about longitudinal axes thereof.
Claim 26
Dependent Claim
83 words
A grab rail assembly according to claim 22 wherein the bar defines three outer cavities, each receiving a respective one of the inserts, wherein the three outer cavities are disposed symmetrically about the bar, wherein the key-receiving opening is defined by a six-way symmetrical central opening in the bar, and wherein the key comprises a three-way symmetrical protrusion defined by the mount and shaped to fit into the central opening in six separate rotational position so the bar with respect to the mount.
Claim 27
Dependent Claim
34 words
A grab rail assembly according to claim 22, said mounting hardware and said grab rail comprising means for fixing said rail in a plurality of rotational positions with respect to a longitudinal axis thereof.
Claim 28
Dependent Claim
61 words
A grab rail assembly according to claim 25, said rod having formed therein at least two said cavities, said grab rail comprising at least two of said inserts respectively disposed in said cavities, said mounting hardware and said grab rail comprising means for fixing said rail in a plurality of rotational positions offering at least two different dispositions of said inserts.
Claim 29
Dependent Claim
31 words
A grab rail assembly according to claim 22, said grab rail having formed therein at least one key-receiving opening extending longitudinally of said bar from an end face of said bar.
Claim 30
Dependent Claim
16 words
A grab rail assembly according to claim 27, said key-receiving opening extending internally of said bar.
Claim 31
Dependent Claim
26 words
A grab rail assembly according to claim 28, said key-receiving opening extending entirely through said bar from said end face to an opposite end face thereof.
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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) | 1993-01-22 | 1993-07-24 | 1994-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-22 | 1997-07-24 | 1998-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-22 | 2001-07-24 | 2002-01-23 | $7700.00 | Window Closed / Lapsed |