Universal adjustable spacer assembly

• US 7,703,727 B2
• Filed: 07/21/2005
• Issued: 04/27/2010
• Est. Priority Date: 07/21/2004
• Status: Expired due to Fees

• Current Assignee: Jerry N. Selness
• Original Assignee: Jerry N. Selness
• Inventors: Selness, Jerry N.
• Primary Examiner(s): Shriver, II; J. Allen
• Assistant Examiner(s): Marsh; Steven M
• Application Number:
  US11/185,846
• Publication Number:
  US 20060022180A1
• Time in Patent Office: 1,741 Days
• Field of Search: 248/668, 248/656, 248/125.2, 248/222.13, 248/188.1, 248/188.2, 248/188.4
• US Class Current: 248/188.2
• CPC Class Codes: A47B 91/028 Means for rotational adjustment on a non-rotational foot

Abstract

In a universal, adjustable spacer assembly, first and second opposed wedges have faces that are inclined with respect to a longitudinal axis. As the wedges translate along the longitudinal axis with respect to one another, vertical distance between an upper face and a lower face of the first and second wedges respectively changes. Longitudinally displaced portions of a rotatable member such as a threaded rod are received in a first and a second collar member pivotally mounted with respect to the first and second wedges respectively. As the rod rotates, longitudinal distance between the collar members changes, and the wedges slide against each other, the collar members rotate within each wedge. In a further form, opposing track members may be fixed to inclined surfaces of the first and second wedges respectively.

Claims

1. An adjustable spacer assembly comprising:

first and second opposed wedges each having opposed inclined surfaces and a bore extending in a transverse direction;

a semi-longitudinal threaded rod connector having oppositely pitched threads at each end and adjustable in position to determine relative positions of said first and second wedges, said wedges being constrained by said semi-longitudinal threaded rod connector being received within the bore, so that a vertical distance between an upper face and a lower face of said first and second wedges respectively changes as said first wedge is translated in a longitudinal direction with respect to said second wedge in response to a change in position of said semi-longitudinal threaded rod connector; and

first and second cylindrical members located at said first and second wedges each to retain said first wedge and said second wedge respectively to said semi-longitudinal threaded rod connector and each permitting pivotal movement of said semi-longitudinal threaded rod connector with respect to one said wedge,

wherein one said cylinder member comprises a threaded collar for rotation of said semi-longitudinal threaded rod connector in said threaded collar.

2. The adjustable spacer assembly according to claim 1, wherein said cylindrical members comprises first and second ends extending transversely outwardly from said wedges and wherein said semi-longitudinal threaded rod connector comprises first and second elongated members each extending from said first cylindrical member to said second cylindrical member on either transverse side of said first and second wedges.

3. The adjustable spacer assembly according to claim 1, further comprising first and second mating track members extending longitudinally on said first and second inclined surfaces respectively, wherein said track members comprise low-friction material.

4. The adjustable spacer assembly according to claim 3, wherein said track members each comprise a pair of transversely spaced track elements.

5. The adjustable spacer assembly according to claim 4 wherein said track elements of said upper wedge comprise rails and said track elements on said lower wedge comprise slots.

6. The adjustable spacer assembly according to claim 5 wherein said rails comprise bulb rails and wherein said bulb rails are formed of a material and proportioned with respect to said slots so that said bulb rails are capable of being snapped into said slots.