Patent US4186979A successfully refreshed from Google Patents.
US4186979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawers
Assignee: LB Plastics Ltd
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Filing: 1978-07-12
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Granted: 1980-02-05
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Expires: 1998-07-12
Abstract
Abstract A drawer having longitudinal tracks formed in the opposite side walls thereof and a pair of guide members mounted at the rear corners of the drawer and movable between retracted positions in which the guide members are clear of the rear ends of the associated tracks and operative positions in which the guide members extend across the ends of the respective tracks, the guide members being adapted to engage with respective drawer runners mounted in a supporting structure in which the drawer is supported in use to support and guide the rear end of the drawer on the runners.
Inventors
- 👤 Leon G. Litchfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:01
CPC Classifications
A; A47; A47B; A47B88/00; A47B88/50; A47B88/57
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
131 words
A drawer having a front wall, a rear wall and opposed side walls, longitudinal tracks formed in said side walls, and a pair of guide members mounted at the rear corners of the drawer and moveable between retracted positions in which the guide members are clear of the rear ends of the associated tracks and operative positions in which the guide members extend across the ends of the respective tracks, the guide members being adapted to engage with respective drawer runners mounted in a supporting structure in which the drawer is mounted in use to support and guide the rear end of the drawer on the runners, and each of said guide members including an actuating member to facilitate sliding movement of said guide member between said retracted and operative positions.
Claim 2
Dependent Claim
131 words
A drawer having a front wall, a rear wall and opposed side walls, longitudinal tracks formed in said side walls, and a pair of guide members mounted at the rear corners of the drawer and moveable between retracted positions in which the guide members are clear of the rear ends of the associated tracks and operative positions in which the guide members extend across the ends of the respective tracks, the guide members being adapted to engage with respective drawer runners mounted in a supporting structure in which the drawer is mounted in use to support and guide the rear end of the drawer on the runners, and each of said guide members including an actuating member to facilitate sliding movement of said guide member between said retracted and operative positions.
Claim 3
Dependent Claim
40 words
A drawer according to claim 1 wherein the rear wall of the drawer is provided with a longitudinal track similar to those formed in the side walls, said guide members being slidably located in the track in the rear wall.
Claim 4
Dependent Claim
23 words
A drawer according to claim 1 or 2 including stop means operable to limit the extent of retracting movement of each guide member.
Claim 5
Dependent Claim
44 words
A drawer according to claim 3 wherein each of said guide members is slidably engaged with a slot in the inner vertical wall of said track in the rear wall of the drawer, the inner end of said slot serving as said stop means.
Claim 6
Dependent Claim
43 words
A drawer according to claim 2 wherein said actuating members project through said inner vertical wall to the interior of the drawer to enable the guide members to be moved between their retracted and operative positions by manual operation from within the drawer.
Claim 7
Dependent Claim
32 words
A drawer according to claim 5 wherein each of said actuating members is provided with a finger piece to facilitate movement of the associated guide member between said retracted and operative positions.
Claim 8
Dependent Claim
21 words
A drawer according to claim 1, 2 or 5 including locking means for locking said guide members in their operative positions.
Claim 9
Dependent Claim
38 words
A drawer according to claim 1, 2 or 5 wherein each of said tracks is provided with longitudinal lips projecting across the mouth of the track towards one another so as to form a relatively narrow entrance thereto.
Claim 10
Dependent Claim
55 words
A drawer according to claim 1, 2 or 5 in association with a pair of drawer runners having bearing members mounted at the forward ends thereof adapted to engage within said tracks in the drawer-sides, said bearing members and said guide members serving to support and guide the drawer during opening and closing movement thereof.
Claim 11
Dependent Claim
12 words
A drawer according to claim 9 wherein the bearing members comprise rollers.
Claim 12
Dependent Claim
75 words
A drawer according to claim 9 wherein each of said drawer runners is of angle section having a mounting flange adapted to be supported in a cabinet or like structure in which the drawer is to be mounted in use, and a drawer-engaging flange projecting at right angles to the mounting flange and adapted to extend into the track in the associated side of the drawer, one of said flanges rotatably supporting said bearing member.
Claim 13
Dependent Claim
23 words
A drawer according to claim 11 wherein the central axis of said bearing member is disposed in the plane of said drawer-engaging flange.
Claim 14
Dependent Claim
39 words
A drawer according to claim 12 wherein said guide members are provided with outwardly opening slots adapted to receive the drawer-engaging flanges of the associated runners and to ride along same during opening and closing movements of the drawer.
Claim 15
Dependent Claim
28 words
A drawer according to claim 13 wherein said drawer runners may be mounted in the supporting structure with said drawer-engaging flange either above or below said mounting flange.
Claim 16
Dependent Claim
43 words
A drawer according to claim 11 including stop means on one of said flanges for engagement with the associated guide member to limit the extent to which the drawer can be withdrawn from its supporting structure during normal opening and closing movements thereof.
Claim 17
Dependent Claim
23 words
A drawer according to claim 15 wherein said stop means comprises a raised portion of said drawer-engaging flange adjacent the forward end thereof.
Claim 18
Dependent Claim
89 words
A drawer according to claim 7 wherein each of said guide members is slidably engaged with a slot in the inner vertical wall of said track in the rear wall of the drawer, each of said actuating members being provided with a finger piece to facilitate movement of the associated guide member between said retracted and operative positions, and a locking projection being provided on said finger and being adapted to engage with the inner end of said slot to lock the associated guide member in its operative position.
Claim 19
Dependent Claim
58 words
A drawer according to claim 9 wherein each of said tracks is provided with longitudinal lips projecting across the mouth of the track towards one another so as to form a relatively narrow entrance thereto, said bearing members having a height greater than the height of said entrance whereby said lips prevent lateral withdrawal of the bearing members.
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) | 1983-02-04 | 1983-08-06 | 1984-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-04 | 1987-08-06 | 1988-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-04 | 1991-08-06 | 1992-02-05 | $7700.00 | Window Closed / Lapsed |