US5138743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator door closing device
Assignee: Electrolux Home Products Inc
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Filing: 1991-06-21
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Granted: 1992-08-18
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Expires: 2011-06-21
Abstract
Abstract A refrigerator cabinet has a door closing device integral with a door top hinge member to fit within the door. The mechanism includes a bearing member secured to the door and a cam member nonrotatably secured to the hinged pin below the bearing member and having a cam follower engaging a cam surface on the lower face of the bearing member. A spring is secured around the lower end of the hinge pin to force the cam member upward against the bearing member and its cam surface, with the cam surface and a cam follower on the cam member being configured to provide a closing bias when the door is near the closed position and detent positions when the door is opened a predetermined amount.
Inventors
- 👤 Charles J. Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:23
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/02; F25D23/028; E; E05; E05F; E05F1/00; E05F1/08; E05F1/10; E05F1/12; E05F1/1207; E05F1/1223; E05F1/02; E05F1/04; E05F1/06; E05F1/061; E05F1/063; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/638; E05Y2900/00; E05Y2900/30; E05Y2900/31; F25D2323/00; F25D2323/02; F25D2323/024; Y; Y10; Y10S; Y10S16/00; Y10S16/13
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
187 words
A combined hinge and closing device for a door hinged on the face of a cabinet, said hinge including a hinge bracket secured to said cabinet to project from said face, a hinge pin secured to said bracket and extending parallel to and spaced from said face to define a hinge axis, a bearing member nonrotatably secured to said door and having an aperture rotatably receiving said hinge pin, said bearing member having an end face and a cam surface on said end face extending arcuately with respect to said hinge axis, a cam member nonrotatably carried on said hinge pin and slidable axially thereon, said cam member having a cam follower engageable with said cam surface, and a spring biasing said cam follower toward said cam surface to produce a force on said door tending to move said door toward a position predetermined by said cam surface, said bearing member having a projecting arm extending over said door and secured to said door a spaced distance from said hinge axis by a projection on the end of said arm extending into an opening in said door.
Claim 2
Dependent Claim
187 words
A combined hinge and closing device for a door hinged on the face of a cabinet, said hinge including a hinge bracket secured to said cabinet to project from said face, a hinge pin secured to said bracket and extending parallel to and spaced from said face to define a hinge axis, a bearing member nonrotatably secured to said door and having an aperture rotatably receiving said hinge pin, said bearing member having an end face and a cam surface on said end face extending arcuately with respect to said hinge axis, a cam member nonrotatably carried on said hinge pin and slidable axially thereon, said cam member having a cam follower engageable with said cam surface, and a spring biasing said cam follower toward said cam surface to produce a force on said door tending to move said door toward a position predetermined by said cam surface, said bearing member having a projecting arm extending over said door and secured to said door a spaced distance from said hinge axis by a projection on the end of said arm extending into an opening in said door.
Claim 3
Dependent Claim
207 words
A combined hinge and closing device for a door hinged on the face of a cabinet, said door having a top wall and a recess on said top wall, said hinge including a hinge bracket secured to said cabinet to project from said face over said recess, a hinge pin secured to said bracket and extending into said recess parallel to and spaced from said face to define a hinge axis, a bearing member nonrotatably secured to said door in said recess and having an aperture rotatably receiving said hinge pin, said bearing member having an end face on its lower end and a cam surface on said end face extending arcuately with respect to said hinge axis, a cam member nonrotatably carried on said hinge pin in said recess and slidable axially thereon, said cam member having a cam follower engageable with said cam surface, and a helical spring surrounding said hinge pin and having one end abutting with said cam member and having the other end abutting with a retainer secured to said hinge pin, said spring biasing said cam follower toward said cam surface to produce a force on said door tending to move said door toward a position predetermined by said cam surface.
Claim 4
Dependent Claim
207 words
A combined hinge and closing device for a door hinged on the face of a cabinet, said door having a top wall and a recess on said top wall, said hinge including a hinge bracket secured to said cabinet to project from said face over said recess, a hinge pin secured to said bracket and extending into said recess parallel to and spaced from said face to define a hinge axis, a bearing member nonrotatably secured to said door in said recess and having an aperture rotatably receiving said hinge pin, said bearing member having an end face on its lower end and a cam surface on said end face extending arcuately with respect to said hinge axis, a cam member nonrotatably carried on said hinge pin in said recess and slidable axially thereon, said cam member having a cam follower engageable with said cam surface, and a helical spring surrounding said hinge pin and having one end abutting with said cam member and having the other end abutting with a retainer secured to said hinge pin, said spring biasing said cam follower toward said cam surface to produce a force on said door tending to move said door toward a position predetermined by said cam surface.
Claim 5
Dependent Claim
36 words
A combined hinge and closing device as set forth in claim 2, wherein said device is a integral unit secured to said hinge bracket to be removable and replaceable as a unit with said hinge bracket.
Claim 6
Dependent Claim
35 words
A combined hinge and closing device as set forth in claim 2, wherein said bearing member is prevented from rotation with respect to said door by a projecting arm secured to said door top wall.
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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) | 1995-08-18 | 1996-02-17 | 1996-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-18 | 2000-02-17 | 2000-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-18 | 2004-02-17 | 2004-08-18 | $7700.00 | Window Closed / Lapsed |